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Export another list of ALL subjects on CGSpace, including AGROVOC and non-AGROVOC for Enrico:
localhost/dspace63= &gt; \COPY (SELECT DISTINCT LOWER(text_value) AS subject, count(*) FROM metadatavalue WHERE dspace_object_id in (SELECT dspace_object_id FROM item) AND metadata_field_id IN (119, 120, 127, 122, 128, 125, 135, 203, 208, 210, 215, 123, 236, 242, 187) GROUP BY subject ORDER BY count DESC) to /tmp/2021-07-01-all-subjects.csv WITH CSV HEADER;
COPY 20994
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Export another list of ALL subjects on CGSpace, including AGROVOC and non-AGROVOC for Enrico:
localhost/dspace63= &gt; \COPY (SELECT DISTINCT LOWER(text_value) AS subject, count(*) FROM metadatavalue WHERE dspace_object_id in (SELECT dspace_object_id FROM item) AND metadata_field_id IN (119, 120, 127, 122, 128, 125, 135, 203, 208, 210, 215, 123, 236, 242, 187) GROUP BY subject ORDER BY count DESC) to /tmp/2021-07-01-all-subjects.csv WITH CSV HEADER;
COPY 20994
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<h1 class="blog-title" dir="auto"><a href="https://alanorth.github.io/cgspace-notes/" rel="home">CGSpace Notes</a></h1>
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<h2 class="blog-post-title" dir="auto"><a href="https://alanorth.github.io/cgspace-notes/2021-07/">July, 2021</a></h2>
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<time datetime="2021-07-01T08:53:07+03:00">Thu Jul 01, 2021</time>
in
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<h2 id="2021-07-01">2021-07-01</h2>
<ul>
<li>Export another list of ALL subjects on CGSpace, including AGROVOC and non-AGROVOC for Enrico:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>localhost/dspace63= &gt; \COPY (SELECT DISTINCT LOWER(text_value) AS subject, count(*) FROM metadatavalue WHERE dspace_object_id in (SELECT dspace_object_id FROM item) AND metadata_field_id IN (119, 120, 127, 122, 128, 125, 135, 203, 208, 210, 215, 123, 236, 242, 187) GROUP BY subject ORDER BY count DESC) to /tmp/2021-07-01-all-subjects.csv WITH CSV HEADER;
</span></span><span style="display:flex;"><span>COPY 20994
</span></span></code></pre></div><h2 id="2021-07-04">2021-07-04</h2>
<ul>
<li>Update all Docker containers on the AReS server (linode20) and rebuild OpenRXV:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ cd OpenRXV
</span></span><span style="display:flex;"><span>$ docker-compose -f docker/docker-compose.yml down
</span></span><span style="display:flex;"><span>$ docker images | grep -v ^REPO | sed <span style="color:#e6db74">&#39;s/ \+/:/g&#39;</span> | cut -d: -f1,2 | xargs -L1 docker pull
</span></span><span style="display:flex;"><span>$ docker-compose -f docker/docker-compose.yml build
</span></span></code></pre></div><ul>
<li>Then run all system updates and reboot the server</li>
<li>After the server came back up I cloned the <code>openrxv-items-final</code> index to <code>openrxv-items-temp</code> and started the plugins
<ul>
<li>This will hopefully be faster than a full re-harvest&hellip;</li>
</ul>
</li>
<li>I opened a few GitHub issues for OpenRXV bugs:
<ul>
<li><a href="https://github.com/ilri/OpenRXV/issues/103">Hide &ldquo;metadata structure&rdquo; section in repository setup</a></li>
<li><a href="https://github.com/ilri/OpenRXV/issues/104">Improve &ldquo;start plugins&rdquo; and &ldquo;commit indexing&rdquo; buttons</a></li>
<li><a href="https://github.com/ilri/OpenRXV/issues/105">Allow running plugins individually</a></li>
<li><a href="https://github.com/ilri/OpenRXV/issues/106">Hide the &ldquo;DSpace add missing items&rdquo;</a></li>
</ul>
</li>
<li>Rebuild DSpace Test (linode26) from a fresh Ubuntu 20.04 image on Linode</li>
<li>The start plugins on AReS had seventy-five errors from the <code>dspace_add_missing_items</code> plugin for some reason so I had to start a fresh indexing</li>
<li>I noticed that the WorldFish data has dozens of incorrect countries so I should talk to Salem about that because they manage it
<ul>
<li>Also I noticed that we weren&rsquo;t using the Country formatter in OpenRXV for the WorldFish country field, so some values don&rsquo;t get mapped properly</li>
<li>I added some value mappings to fix some issues with WorldFish data and added a few more fields to the repository harvesting config and started a fresh re-indexing</li>
</ul>
</li>
</ul>
<h2 id="2021-07-05">2021-07-05</h2>
<ul>
<li>The AReS harvesting last night succeeded and I started the plugins</li>
<li>Margarita from CCAFS asked if we can create a new field for AICCRA publications
<ul>
<li>I asked her to clarify what they want</li>
<li>AICCRA is an initiative so it might be better to create new field for that, for example <code>cg.contributor.initiative</code></li>
</ul>
</li>
</ul>
<h2 id="2021-07-06">2021-07-06</h2>
<ul>
<li>Atmire merged my spider user agent changes from last month so I will update the <code>example</code> list we use in DSpace and remove the new ones from my <code>ilri</code> override file
<ul>
<li>Also, I concatenated all our user agents into one file and purged all hits:</li>
</ul>
</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ ./ilri/check-spider-hits.sh -f /tmp/spiders -p
</span></span><span style="display:flex;"><span>Purging 95 hits from Drupal in statistics
</span></span><span style="display:flex;"><span>Purging 38 hits from DTS Agent in statistics
</span></span><span style="display:flex;"><span>Purging 601 hits from Microsoft Office Existence Discovery in statistics
</span></span><span style="display:flex;"><span>Purging 51 hits from Site24x7 in statistics
</span></span><span style="display:flex;"><span>Purging 62 hits from Trello in statistics
</span></span><span style="display:flex;"><span>Purging 13574 hits from WhatsApp in statistics
</span></span><span style="display:flex;"><span>Purging 144 hits from FlipboardProxy in statistics
</span></span><span style="display:flex;"><span>Purging 37 hits from LinkWalker in statistics
</span></span><span style="display:flex;"><span>Purging 1 hits from [Ll]ink.?[Cc]heck.? in statistics
</span></span><span style="display:flex;"><span>Purging 427 hits from WordPress in statistics
</span></span><span style="display:flex;"><span><span style="color:#960050;background-color:#1e0010">
</span></span></span><span style="display:flex;"><span><span style="color:#960050;background-color:#1e0010"></span>Total number of bot hits purged: 15030
</span></span></code></pre></div><ul>
<li>Meet with the CGIAR–AGROVOC task group to discuss how we want to do the workflow for submitting new terms to AGROVOC</li>
<li>I extracted another list of all subjects to check against AGROVOC:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>\COPY (SELECT DISTINCT(LOWER(text_value)) AS subject, count(*) FROM metadatavalue WHERE dspace_object_id in (SELECT dspace_object_id FROM item) AND metadata_field_id IN (119, 120, 127, 122, 128, 125, 135, 203, 208, 210, 215, 123, 236, 242, 187) GROUP BY subject ORDER BY count DESC) to /tmp/2021-07-06-all-subjects.csv WITH CSV HEADER;
</span></span><span style="display:flex;"><span>$ csvcut -c <span style="color:#ae81ff">1</span> /tmp/2021-07-06-all-subjects.csv | sed 1d &gt; /tmp/2021-07-06-all-subjects.txt
</span></span><span style="display:flex;"><span>$ ./ilri/agrovoc-lookup.py -i /tmp/2021-07-06-all-subjects.txt -o /tmp/2021-07-06-agrovoc-results-all-subjects.csv -d
</span></span></code></pre></div><ul>
<li>Test <a href="https://github.com/DSpace/DSpace/pull/3162">Hrafn Malmquist&rsquo;s proposed DBCP2 changes</a> for DSpace 6.4 (DS-4574)
<ul>
<li>His changes reminded me that we can perhaps switch back to using this pooling instead of Tomcat 7&rsquo;s JDBC pooling via JNDI</li>
<li>Tomcat 8 has DBCP2 built in, but we are stuck on Tomcat 7 for now</li>
</ul>
</li>
<li>Looking into the database issues we had last month on 2021-06-23
<ul>
<li>I think it might have been some kind of attack because the number of XMLUI sessions was through the roof at one point (10,000!) and the number of unique IPs accessing the server that day is much higher than any other day:</li>
</ul>
</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span># <span style="color:#66d9ef">for</span> num in <span style="color:#f92672">{</span>10..26<span style="color:#f92672">}</span>; <span style="color:#66d9ef">do</span> echo <span style="color:#e6db74">&#34;2021-06-</span>$num<span style="color:#e6db74">&#34;</span>; zcat /var/log/nginx/access.log.*.gz /var/log/nginx/library-access.log.*.gz | grep <span style="color:#e6db74">&#34;</span>$num<span style="color:#e6db74">/Jun/2021&#34;</span> | awk <span style="color:#e6db74">&#39;{print $1}&#39;</span> | sort | uniq | wc -l; <span style="color:#66d9ef">done</span>
</span></span><span style="display:flex;"><span>2021-06-10
</span></span><span style="display:flex;"><span>10693
</span></span><span style="display:flex;"><span>2021-06-11
</span></span><span style="display:flex;"><span>10587
</span></span><span style="display:flex;"><span>2021-06-12
</span></span><span style="display:flex;"><span>7958
</span></span><span style="display:flex;"><span>2021-06-13
</span></span><span style="display:flex;"><span>7681
</span></span><span style="display:flex;"><span>2021-06-14
</span></span><span style="display:flex;"><span>12639
</span></span><span style="display:flex;"><span>2021-06-15
</span></span><span style="display:flex;"><span>15388
</span></span><span style="display:flex;"><span>2021-06-16
</span></span><span style="display:flex;"><span>12245
</span></span><span style="display:flex;"><span>2021-06-17
</span></span><span style="display:flex;"><span>11187
</span></span><span style="display:flex;"><span>2021-06-18
</span></span><span style="display:flex;"><span>9684
</span></span><span style="display:flex;"><span>2021-06-19
</span></span><span style="display:flex;"><span>7835
</span></span><span style="display:flex;"><span>2021-06-20
</span></span><span style="display:flex;"><span>7198
</span></span><span style="display:flex;"><span>2021-06-21
</span></span><span style="display:flex;"><span>10380
</span></span><span style="display:flex;"><span>2021-06-22
</span></span><span style="display:flex;"><span>10255
</span></span><span style="display:flex;"><span>2021-06-23
</span></span><span style="display:flex;"><span>15878
</span></span><span style="display:flex;"><span>2021-06-24
</span></span><span style="display:flex;"><span>9963
</span></span><span style="display:flex;"><span>2021-06-25
</span></span><span style="display:flex;"><span>9439
</span></span><span style="display:flex;"><span>2021-06-26
</span></span><span style="display:flex;"><span>7930
</span></span></code></pre></div><ul>
<li>Similarly, the number of connections to the REST API was around the average for the recent weeks before:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span># <span style="color:#66d9ef">for</span> num in <span style="color:#f92672">{</span>10..26<span style="color:#f92672">}</span>; <span style="color:#66d9ef">do</span> echo <span style="color:#e6db74">&#34;2021-06-</span>$num<span style="color:#e6db74">&#34;</span>; zcat /var/log/nginx/rest.*.gz | grep <span style="color:#e6db74">&#34;</span>$num<span style="color:#e6db74">/Jun/2021&#34;</span> | awk <span style="color:#e6db74">&#39;{print $1}&#39;</span> | sort | uniq | wc -l; <span style="color:#66d9ef">done</span>
</span></span><span style="display:flex;"><span>2021-06-10
</span></span><span style="display:flex;"><span>1183
</span></span><span style="display:flex;"><span>2021-06-11
</span></span><span style="display:flex;"><span>1074
</span></span><span style="display:flex;"><span>2021-06-12
</span></span><span style="display:flex;"><span>911
</span></span><span style="display:flex;"><span>2021-06-13
</span></span><span style="display:flex;"><span>892
</span></span><span style="display:flex;"><span>2021-06-14
</span></span><span style="display:flex;"><span>1320
</span></span><span style="display:flex;"><span>2021-06-15
</span></span><span style="display:flex;"><span>1257
</span></span><span style="display:flex;"><span>2021-06-16
</span></span><span style="display:flex;"><span>1208
</span></span><span style="display:flex;"><span>2021-06-17
</span></span><span style="display:flex;"><span>1119
</span></span><span style="display:flex;"><span>2021-06-18
</span></span><span style="display:flex;"><span>965
</span></span><span style="display:flex;"><span>2021-06-19
</span></span><span style="display:flex;"><span>985
</span></span><span style="display:flex;"><span>2021-06-20
</span></span><span style="display:flex;"><span>854
</span></span><span style="display:flex;"><span>2021-06-21
</span></span><span style="display:flex;"><span>1098
</span></span><span style="display:flex;"><span>2021-06-22
</span></span><span style="display:flex;"><span>1028
</span></span><span style="display:flex;"><span>2021-06-23
</span></span><span style="display:flex;"><span>1375
</span></span><span style="display:flex;"><span>2021-06-24
</span></span><span style="display:flex;"><span>1135
</span></span><span style="display:flex;"><span>2021-06-25
</span></span><span style="display:flex;"><span>969
</span></span><span style="display:flex;"><span>2021-06-26
</span></span><span style="display:flex;"><span>904
</span></span></code></pre></div><ul>
<li>According to goaccess, the traffic spike started at 2AM (remember that the first &ldquo;Pool empty&rdquo; error in dspace.log was at 4:01AM):</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span># zcat /var/log/nginx/access.log.1<span style="color:#f92672">[</span>45<span style="color:#f92672">]</span>.gz /var/log/nginx/library-access.log.1<span style="color:#f92672">[</span>45<span style="color:#f92672">]</span>.gz | grep -E <span style="color:#e6db74">&#39;23/Jun/2021&#39;</span> | goaccess --log-format<span style="color:#f92672">=</span>COMBINED -
</span></span></code></pre></div><ul>
<li>Moayad sent a fix for the add missing items plugins issue (<a href="https://github.com/ilri/OpenRXV/pull/107">#107</a>)
<ul>
<li>It works MUCH faster because it correctly identifies the missing handles in each repository</li>
<li>Also it adds better debug messages to the api logs</li>
</ul>
</li>
</ul>
<h2 id="2021-07-08">2021-07-08</h2>
<ul>
<li>Atmire plans to debug the database connection issues on CGSpace (linode18) today so they asked me to make the REST API inaccessible for today and tomorrow
<ul>
<li>I adjusted nginx to give an HTTP 403 as well as a an error message to contact me</li>
</ul>
</li>
</ul>
<h2 id="2021-07-11">2021-07-11</h2>
<ul>
<li>Start an indexing on AReS</li>
</ul>
<h2 id="2021-07-17">2021-07-17</h2>
<ul>
<li>I&rsquo;m in Cyprus mostly offline, but I noticed that CGSpace was down
<ul>
<li>I checked and there was a blank white page with HTTP 200</li>
<li>There are thousands of locks in PostgreSQL:</li>
</ul>
</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>postgres@linode18:~$ psql -c &#39;SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;&#39; | wc -l
</span></span><span style="display:flex;"><span>2302
</span></span><span style="display:flex;"><span>postgres@linode18:~$ psql -c &#39;SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;&#39; | wc -l
</span></span><span style="display:flex;"><span>2564
</span></span><span style="display:flex;"><span>postgres@linode18:~$ psql -c &#39;SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;&#39; | wc -l
</span></span><span style="display:flex;"><span>2530
</span></span></code></pre></div><ul>
<li>The locks are held by XMLUI, not REST API or OAI:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>postgres@linode18:~$ psql -c &#39;SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;&#39; | grep -o -E &#39;(dspaceWeb|dspaceApi)&#39; | sort | uniq -c | sort -n
</span></span><span style="display:flex;"><span> 57 dspaceApi
</span></span><span style="display:flex;"><span> 2671 dspaceWeb
</span></span></code></pre></div><ul>
<li>I ran all updates on the server (linode18) and restarted it, then DSpace came back up</li>
<li>I sent a message to Atmire, as I never heard from them last week when we blocked access to the REST API for two days for them to investigate the server issues</li>
<li>Clone the <code>openrxv-items-temp</code> index on AReS and re-run all the plugins, but most of the &ldquo;dspace_add_missing_items&rdquo; tasks failed so I will just run a full re-harvest</li>
<li>The load on CGSpace is 45.00&hellip; the nginx access.log is going so fast I can&rsquo;t even read it
<ul>
<li>I see lots of IPs from AS206485 that are changing their user agents (Linux, Windows, macOS&hellip;)</li>
<li>This is finegroupservers.com aka &ldquo;UGB - UGB Hosting OU&rdquo;</li>
<li>I will get a list of their IP blocks from <a href="https://asn.ipinfo.app/AS206485">ipinfo.app</a> and block them in nginx</li>
<li>There is another group of IPs that are owned by an ISP called &ldquo;TrafficTransitSolution LLC&rdquo; that does not have its own ASN unfortunately</li>
<li>&ldquo;TrafficTransitSolution LLC&rdquo; seems to be affiliated with AS206485 (UGB Hosting OU) anyways, but they sometimes use AS49453 Global Layer B.V.G also</li>
<li>I found a tool that lets you grep a file by CIDR, so I can use that to purge hits from Solr eventually:</li>
</ul>
</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span># grepcidr 91.243.191.0/24 /var/log/nginx/access.log | awk <span style="color:#e6db74">&#39;{print $1}&#39;</span> | sort | uniq -c | sort -n
</span></span><span style="display:flex;"><span> 32 91.243.191.124
</span></span><span style="display:flex;"><span> 33 91.243.191.129
</span></span><span style="display:flex;"><span> 33 91.243.191.200
</span></span><span style="display:flex;"><span> 34 91.243.191.115
</span></span><span style="display:flex;"><span> 34 91.243.191.154
</span></span><span style="display:flex;"><span> 34 91.243.191.234
</span></span><span style="display:flex;"><span> 34 91.243.191.56
</span></span><span style="display:flex;"><span> 35 91.243.191.187
</span></span><span style="display:flex;"><span> 35 91.243.191.91
</span></span><span style="display:flex;"><span> 36 91.243.191.58
</span></span><span style="display:flex;"><span> 37 91.243.191.209
</span></span><span style="display:flex;"><span> 39 91.243.191.119
</span></span><span style="display:flex;"><span> 39 91.243.191.144
</span></span><span style="display:flex;"><span> 39 91.243.191.55
</span></span><span style="display:flex;"><span> 40 91.243.191.112
</span></span><span style="display:flex;"><span> 40 91.243.191.182
</span></span><span style="display:flex;"><span> 40 91.243.191.57
</span></span><span style="display:flex;"><span> 40 91.243.191.98
</span></span><span style="display:flex;"><span> 41 91.243.191.106
</span></span><span style="display:flex;"><span> 44 91.243.191.79
</span></span><span style="display:flex;"><span> 45 91.243.191.151
</span></span><span style="display:flex;"><span> 46 91.243.191.103
</span></span><span style="display:flex;"><span> 56 91.243.191.172
</span></span></code></pre></div><ul>
<li>I found a few people complaining about these Russian attacks too:
<ul>
<li><a href="https://community.cloudflare.com/t/russian-ddos-completley-unmitigated-by-cloudflare/284578">https://community.cloudflare.com/t/russian-ddos-completley-unmitigated-by-cloudflare/284578</a></li>
<li><a href="https://vklader.com/ddos-2020-may/">https://vklader.com/ddos-2020-may/</a></li>
</ul>
</li>
<li>According to AbuseIPDB.com and whois data provided by the asn tool, I see these organizations, networks, and ISPs all seem to be related:
<ul>
<li>Sharktech</li>
<li>LIR LLC / lir.am</li>
<li>TrafficTransitSolution LLC / traffictransitsolution.us</li>
<li>Fine Group Servers Solutions LLC / finegroupservers.com</li>
<li>UGB</li>
<li>Bulgakov Alexey Yurievich</li>
<li>Dmitry Vorozhtsov / fitz-isp.uk / UGB</li>
<li>Auction LLC / dauction.ru / UGB / traffictransitsolution.us</li>
<li>Alax LLC / alaxona.com / finegroupservers.com</li>
<li>Sysoev Aleksey Anatolevich / jobbuzzactiv.com / traffictransitsolution.us</li>
<li>Bulgakov Alexey Yurievich / UGB / blockchainnetworksolutions.co.uk / <a href="mailto:info@finegroupservers.com">info@finegroupservers.com</a></li>
<li>UAB Rakrejus</li>
</ul>
</li>
<li>I looked in the nginx log and copied a few IP addresses that were suspicious
<ul>
<li>First I looked them up in AbuseIPDB.com to get the ISP name and website</li>
<li>Then I looked them up with the <a href="https://github.com/nitefood/asn">asn</a> tool, ie:</li>
</ul>
</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ ./asn -n 45.80.217.235
</span></span><span style="display:flex;"><span><span style="color:#960050;background-color:#1e0010">
</span></span></span><span style="display:flex;"><span><span style="color:#960050;background-color:#1e0010"></span>╭──────────────────────────────╮
</span></span><span style="display:flex;"><span>│ ASN lookup for 45.80.217.235 │
</span></span><span style="display:flex;"><span>╰──────────────────────────────╯
</span></span><span style="display:flex;"><span><span style="color:#960050;background-color:#1e0010">
</span></span></span><span style="display:flex;"><span><span style="color:#960050;background-color:#1e0010"></span> 45.80.217.235 ┌PTR -
</span></span><span style="display:flex;"><span> ├ASN 46844 (ST-BGP, US)
</span></span><span style="display:flex;"><span> ├ORG Sharktech
</span></span><span style="display:flex;"><span> ├NET 45.80.217.0/24 (TrafficTransitSolutionNet)
</span></span><span style="display:flex;"><span> ├ABU info@traffictransitsolution.us
</span></span><span style="display:flex;"><span> ├ROA ✓ VALID (1 ROA found)
</span></span><span style="display:flex;"><span> ├TYP Proxy host Hosting/DC
</span></span><span style="display:flex;"><span> ├GEO Los Angeles, California (US)
</span></span><span style="display:flex;"><span> └REP ✓ NONE
</span></span></code></pre></div><ul>
<li>Slowly slowly I manually built up a list of the IPs, ISP names, and network blocks, for example:</li>
</ul>
<pre tabindex="0"><code class="language-csv" data-lang="csv">IP, Organization, Website, Network
45.148.126.246, TrafficTransitSolution LLC, traffictransitsolution.us, 45.148.126.0/24 (Net-traffictransitsolution-15)
45.138.102.253, TrafficTransitSolution LLC, traffictransitsolution.us, 45.138.102.0/24 (Net-traffictransitsolution-11)
45.140.205.104, Bulgakov Alexey Yurievich, finegroupservers.com, 45.140.204.0/23 (CHINA_NETWORK)
185.68.247.63, Fine Group Servers Solutions LLC, finegroupservers.com, 185.68.247.0/24 (Net-finegroupservers-18)
213.232.123.188, Fine Group Servers Solutions LLC, finegroupservers.com, 213.232.123.0/24 (Net-finegroupservers-12)
45.80.217.235, TrafficTransitSolution LLC, traffictransitsolution.us, 45.80.217.0/24 (TrafficTransitSolutionNet)
185.81.144.202, Fine Group Servers Solutions LLC, finegroupservers.com, 185.81.144.0/24 (Net-finegroupservers-19)
109.106.22.114, TrafficTransitSolution LLC, traffictransitsolution.us, 109.106.22.0/24 (TrafficTransitSolutionNet)
185.68.247.200, Fine Group Servers Solutions LLC, finegroupservers.com, 185.68.247.0/24 (Net-finegroupservers-18)
45.80.105.252, Bulgakov Alexey Yurievich, finegroupservers.com, 45.80.104.0/23 (NET-BNSL2-1)
185.233.187.156, Dmitry Vorozhtsov, mgn-host.ru, 185.233.187.0/24 (GB-FITZISP-20181106)
185.88.100.75, TrafficTransitSolution LLC, traffictransitsolution.us, 185.88.100.0/24 (Net-traffictransitsolution-17)
194.104.8.154, TrafficTransitSolution LLC, traffictransitsolution.us, 194.104.8.0/24 (Net-traffictransitsolution-37)
185.102.112.46, Fine Group Servers Solutions LLC, finegroupservers.com, 185.102.112.0/24 (Net-finegroupservers-13)
212.193.12.64, Fine Group Servers Solutions LLC, finegroupservers.com, 212.193.12.0/24 (FINE_GROUP_SERVERS_SOLUTIONS_LLC)
91.243.191.129, Auction LLC, dauction.ru, 91.243.191.0/24 (TR-QN-20180917)
45.148.232.161, Nikolaeva Ekaterina Sergeevna, blockchainnetworksolutions.co.uk, 45.148.232.0/23 (LONDON_NETWORK)
147.78.181.191, TrafficTransitSolution LLC, traffictransitsolution.us, 147.78.181.0/24 (Net-traffictransitsolution-58)
77.83.27.90, Alax LLC, alaxona.com, 77.83.27.0/24 (FINEGROUPSERVERS-LEASE)
185.250.46.119, Dmitry Vorozhtsov, mgn-host.ru, 185.250.46.0/23 (GB-FITZISP-20181106)
94.231.219.106, LIR LLC, lir.am, 94.231.219.0/24 (CN-NET-219)
45.12.65.56, Sysoev Aleksey Anatolevich, jobbuzzactiv.com / traffictransitsolution.us, 45.12.65.0/24 (TrafficTransitSolutionNet)
45.140.206.31, Bulgakov Alexey Yurievich, blockchainnetworksolutions.co.uk / info@finegroupservers.com, 45.140.206.0/23 (FRANKFURT_NETWORK)
84.54.57.130, LIR LLC, lir.am / traffictransitsolution.us, 84.54.56.0/23 (CN-FTNET-5456)
178.20.214.235, Alaxona Internet Inc., alaxona.com / finegroupservers.com, 178.20.214.0/24 (FINEGROUPSERVERS-LEASE)
37.44.253.204, Atex LLC, atex.ru / blockchainnetworksolutions.co.uk, 37.44.252.0/23 (NL-FTN-44252)
46.161.61.242, Petersburg Internet Network Ltd., pinspb.ru / abusemail@depo40.ru, 46.161.61.0/24 (FineTransitDE)
194.87.113.141, Fine Group Servers Solutions LLC, finegroupservers.com, 194.87.113.0/24 (FINE_GROUP_SERVERS_SOLUTIONS_LLC)
109.94.223.217, LIR LLC, lir.am / traffictransitsolution.us, 109.94.223.0/24 (CN-NET-223)
94.231.217.115, LIR LLC, lir.am / traffictransitsolution.us, 94.231.217.0/24 (TR-NET-217)
146.185.202.214, Petersburg Internet Network Ltd., pinspb.ru / abusemail@depo40.ru / abuse@ripe.net, 146.185.202.0/24 (FineTransitRU)
194.58.68.110, Fine Group Servers Solutions LLC, finegroupservers.com, 194.58.68.0/24 (FINE_GROUP_SERVERS_SOLUTIONS_LLC)
94.154.131.237, TrafficTransitSolution LLC, traffictransitsolution.us, 94.154.131.0/24 (TrafficTransitSolutionNet)
193.202.8.245, Fine Group Servers Solutions LLC, finegroupservers.com, 193.202.8.0/21 (FTL5)
212.192.27.33, Fine Group Servers Solutions LLC, finegroupservers.com, 212.192.27.0/24 (FINE_GROUP_SERVERS_SOLUTIONS_LLC)
193.202.87.218, Fine Group Servers Solutions LLC, finegroupservers.com, 193.202.84.0/22 (FTEL-2)
146.185.200.52, Petersburg Internet Network Ltd., pinspb.ru / abusemail@depo40.ru / abuse@ripe.net, 146.185.200.0/24 (FineTransitRU)
194.104.11.11, TrafficTransitSolution LLC, traffictransitsolution.us, 194.104.11.0/24 (Net-traffictransitsolution-40)
185.50.250.145, ATOMOHOST LLC, atomohost.com, 185.50.250.0/24 (Silverstar_Invest_Limited)
37.9.46.68, Petersburg Internet Network Ltd., pinspb.ru / abusemail@depo40.ru / abuse@ripe.net / , 37.9.44.0/22 (QUALITYNETWORK)
185.81.145.14, Fine Group Servers Solutions LLC, finegroupservers.com, 185.81.145.0/24 (Net-finegroupservers-20)
5.183.255.72, TrafficTransitSolution LLC, traffictransitsolution.us, 5.183.255.0/24 (Net-traffictransitsolution-32)
84.54.58.204, LIR LLC, lir.am / traffictransitsolution.us, 84.54.58.0/24 (GB-BTTGROUP-20181119)
109.236.55.175, Mosnet LLC, mosnetworks.ru / info@traffictransitsolution.us, 109.236.55.0/24 (CN-NET-55)
5.133.123.184, Mosnet LLC, mosnet.ru / abuse@blockchainnetworksolutions.co.uk, 5.133.123.0/24 (DE-NET5133123)
5.181.168.90, Fine Group Servers Solutions LLC, finegroupservers.com, 5.181.168.0/24 (Net-finegroupservers-5)
185.61.217.86, TrafficTransitSolution LLC, traffictransitsolution.us, 185.61.217.0/24 (Net-traffictransitsolution-46)
217.145.227.84, TrafficTransitSolution LLC, traffictransitsolution.us, 217.145.227.0/24 (Net-traffictransitsolution-64)
193.56.75.29, Auction LLC, dauction.ru / abuse@blockchainnetworksolutions.co.uk, 193.56.75.0/24 (CN-NET-75)
45.132.184.212, TrafficTransitSolution LLC, traffictransitsolution.us, 45.132.184.0/24 (Net-traffictransitsolution-5)
45.10.167.239, TrafficTransitSolution LLC, traffictransitsolution.us, 45.10.167.0/24 (Net-traffictransitsolution-28)
109.94.222.106, Express Courier LLC, expcourier.ru / info@traffictransitsolution.us, 109.94.222.0/24 (IN-NET-222)
62.76.232.218, Fine Group Servers Solutions LLC, finegroupservers.com, 62.76.232.0/24 (FINE_GROUP_SERVERS_SOLUTIONS_LLC)
147.78.183.221, TrafficTransitSolution LLC, traffictransitsolution.us, 147.78.183.0/24 (Net-traffictransitsolution-60)
94.158.22.202, Auction LLC, dauction.ru / info@traffictransitsolution.us, 94.158.22.0/24 (FR-QN-20180917)
85.202.194.33, Mosnet LLC, mosnet.ru / info@traffictransitsolution.us, 85.202.194.0/24 (DE-QN-20180917)
193.187.93.150, Fine Group Servers Solutions LLC, finegroupservers.com, 193.187.92.0/22 (FTL3)
185.250.45.149, Dmitry Vorozhtsov, mgn-host.ru / abuse@fitz-isp.uk, 185.250.44.0/23 (GB-FITZISP-20181106)
185.50.251.75, ATOMOHOST LLC, atomohost.com, 185.50.251.0/24 (Silverstar_Invest_Limited)
5.183.254.117, TrafficTransitSolution LLC, traffictransitsolution.us, 5.183.254.0/24 (Net-traffictransitsolution-31)
45.132.186.187, TrafficTransitSolution LLC, traffictransitsolution.us, 45.132.186.0/24 (Net-traffictransitsolution-7)
83.171.252.105, Teleport LLC, teleport.az / abuse@blockchainnetworksolutions.co.uk, 83.171.252.0/23 (DE-FTNET-252)
45.148.127.37, TrafficTransitSolution LLC, traffictransitsolution.us, 45.148.127.0/24 (Net-traffictransitsolution-16)
194.87.115.133, Fine Group Servers Solutions LLC, finegroupservers.com, 194.87.115.0/24 (FINE_GROUP_SERVERS_SOLUTIONS_LLC)
193.233.250.100, OOO Freenet Group, free.net / abuse@vmage.ru, 193.233.250.0/24 (TrafficTransitSolutionNet)
194.87.116.246, Fine Group Servers Solutions LLC, finegroupservers.com, 194.87.116.0/24 (FINE_GROUP_SERVERS_SOLUTIONS_LLC)
195.133.25.244, Fine Group Servers Solutions LLC, finegroupservers.com, 195.133.25.0/24 (FINE_GROUP_SERVERS_SOLUTIONS_LLC)
77.220.194.159, Fine Group Servers Solutions LLC, finegroupservers.com, 77.220.194.0/24 (Net-finegroupservers-3)
185.89.101.177, ATOMOHOST LLC, atomohost.com, 185.89.100.0/23 (QUALITYNETWORK)
193.151.191.133, Alax LLC, alaxona.com / info@finegroupservers.com, 193.151.191.0/24 (FINEGROUPSERVERS-LEASE)
5.181.170.147, Fine Group Servers Solutions LLC, finegroupservers.com, 5.181.170.0/24 (Net-finegroupservers-7)
193.233.249.167, OOO Freenet Group, free.net / abuse@vmage.ru, 193.233.249.0/24 (TrafficTransitSolutionNet)
46.161.59.90, Petersburg Internet Network Ltd., pinspb.ru / abusemail@depo40.ru, 46.161.59.0/24 (FineTransitJP)
213.108.3.74, TrafficTransitSolution LLC, traffictransitsolution.us, 213.108.3.0/24 (Net-traffictransitsolution-24)
193.233.251.238, OOO Freenet Group, free.net / abuse@vmage.ru, 193.233.251.0/24 (TrafficTransitSolutionNet)
178.20.215.224, Alaxona Internet Inc., alaxona.com / info@finegroupservers.com, 178.20.215.0/24 (FINEGROUPSERVERS-LEASE)
45.159.22.199, Server LLC, ixserv.ru / info@finegroupservers.com, 45.159.22.0/24 (FINEGROUPSERVERS-LEASE)
109.236.53.244, Mosnet LLC, mosnet.ru, info@traffictransitsolution.us, 109.236.53.0/24 (TR-NET-53)
</code></pre><ul>
<li>I found a better way to get the ASNs using my <code>resolve-addresses-geoip2.py</code> script
<ul>
<li>First, get a list of all IPs making requests to nginx today:</li>
</ul>
</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span># grep -v -E <span style="color:#e6db74">&#34;(mahider|Googlebot|Turnitin|Grammarly|Unpaywall|UptimeRobot|bot)&#34;</span> /var/log/nginx/access.log | awk <span style="color:#e6db74">&#39;{print $1}&#39;</span> | sort | uniq &gt; /tmp/ips-sorted.txt
</span></span><span style="display:flex;"><span># wc -l /tmp/ips-sorted.txt
</span></span><span style="display:flex;"><span>10776 /tmp/ips-sorted.txt
</span></span></code></pre></div><ul>
<li>Then resolve them all:</li>
</ul>
<pre tabindex="0"><code class="language-console:" data-lang="console:">$ ./ilri/resolve-addresses-geoip2.py -i /tmp/ips-sorted.txt -o /tmp/out.csv
</code></pre><ul>
<li>Then get the top 10 organizations and top ten ASNs:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ csvcut -c <span style="color:#ae81ff">2</span> /tmp/out.csv | sed 1d | sort | uniq -c | sort -n | tail -n <span style="color:#ae81ff">10</span>
</span></span><span style="display:flex;"><span> 213 AMAZON-AES
</span></span><span style="display:flex;"><span> 218 ASN-QUADRANET-GLOBAL
</span></span><span style="display:flex;"><span> 246 Silverstar Invest Limited
</span></span><span style="display:flex;"><span> 347 Ethiopian Telecommunication Corporation
</span></span><span style="display:flex;"><span> 475 DEDIPATH-LLC
</span></span><span style="display:flex;"><span> 504 AS-COLOCROSSING
</span></span><span style="display:flex;"><span> 598 UAB Rakrejus
</span></span><span style="display:flex;"><span> 814 UGB Hosting OU
</span></span><span style="display:flex;"><span> 1010 ST-BGP
</span></span><span style="display:flex;"><span> 1757 Global Layer B.V.
</span></span><span style="display:flex;"><span>$ csvcut -c <span style="color:#ae81ff">3</span> /tmp/out.csv | sed 1d | sort | uniq -c | sort -n | tail -n <span style="color:#ae81ff">10</span>
</span></span><span style="display:flex;"><span> 213 14618
</span></span><span style="display:flex;"><span> 218 8100
</span></span><span style="display:flex;"><span> 246 35624
</span></span><span style="display:flex;"><span> 347 24757
</span></span><span style="display:flex;"><span> 475 35913
</span></span><span style="display:flex;"><span> 504 36352
</span></span><span style="display:flex;"><span> 598 62282
</span></span><span style="display:flex;"><span> 814 206485
</span></span><span style="display:flex;"><span> 1010 46844
</span></span><span style="display:flex;"><span> 1757 49453
</span></span></code></pre></div><ul>
<li>I will download blocklists for all these except Ethiopian Telecom, Quadranet, and Amazon, though I&rsquo;m concerned about Global Layer because it&rsquo;s a huge ASN that seems to have legit hosts too&hellip;?</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ wget https://asn.ipinfo.app/api/text/nginx/AS49453
</span></span><span style="display:flex;"><span>$ wget https://asn.ipinfo.app/api/text/nginx/AS46844
</span></span><span style="display:flex;"><span>$ wget https://asn.ipinfo.app/api/text/nginx/AS206485
</span></span><span style="display:flex;"><span>$ wget https://asn.ipinfo.app/api/text/nginx/AS62282
</span></span><span style="display:flex;"><span>$ wget https://asn.ipinfo.app/api/text/nginx/AS36352
</span></span><span style="display:flex;"><span>$ wget https://asn.ipinfo.app/api/text/nginx/AS35624
</span></span><span style="display:flex;"><span>$ cat AS* | sort | uniq &gt; /tmp/abusive-networks.txt
</span></span><span style="display:flex;"><span>$ wc -l /tmp/abusive-networks.txt
</span></span><span style="display:flex;"><span>2276 /tmp/abusive-networks.txt
</span></span></code></pre></div><ul>
<li>Combining with my existing rules and filtering uniques:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ cat roles/dspace/templates/nginx/abusive-networks.conf.j2 /tmp/abusive-networks.txt | grep deny | sort | uniq | wc -l
</span></span><span style="display:flex;"><span>2298
</span></span></code></pre></div><ul>
<li><a href="https://scamalytics.com/ip/isp/2021-06">According to Scamalytics all these are high risk ISPs</a> (as recently as 2021-06) so I will just keep blocking them</li>
<li>I deployed the block list on CGSpace (linode18) and the load is down to 1.0 but I see there are still some DDoS IPs getting through&hellip; sigh</li>
<li>The next thing I need to do is purge all the IPs from Solr using grepcidr&hellip;</li>
</ul>
<h2 id="2021-07-18">2021-07-18</h2>
<ul>
<li>After blocking all the ASN network blocks yesterday I still see requests getting through from these abusive networks, so the ASN lists must be out of date
<ul>
<li>I decided to get a lit of all the IPs that made requests on the server in the last two days, resolve them, and then filter out those from these ASNs: 206485, 35624, 36352, 46844, 49453, 62282</li>
</ul>
</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ sudo zcat --force /var/log/nginx/access.log /var/log/nginx/access.log.1 /var/log/nginx/access.log.2 | grep -E <span style="color:#e6db74">&#34; (200|499) &#34;</span> | awk <span style="color:#e6db74">&#39;{print $1}&#39;</span> | sort | uniq &gt; /tmp/all-ips.txt
</span></span><span style="display:flex;"><span>$ ./ilri/resolve-addresses-geoip2.py -i /tmp/all-ips.txt -o /tmp/all-ips-out.csv
</span></span><span style="display:flex;"><span>$ csvgrep -c asn -r <span style="color:#e6db74">&#39;^(206485|35624|36352|46844|49453|62282)$&#39;</span> /tmp/all-ips-out.csv | csvcut -c ip | sed 1d | sort | uniq &gt; /tmp/all-ips-to-block.txt
</span></span><span style="display:flex;"><span>$ wc -l /tmp/all-ips-to-block.txt
</span></span><span style="display:flex;"><span>5095 /tmp/all-ips-to-block.txt
</span></span></code></pre></div><ul>
<li>Then I added them to the normal ipset we are already using with firewalld
<ul>
<li>I will check again in a few hours and ban more</li>
</ul>
</li>
<li>I decided to extract the networks from the GeoIP database with <code>resolve-addresses-geoip2.py</code> so I can block them more efficiently than using the 5,000 IPs in an ipset:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ csvgrep -c asn -r <span style="color:#e6db74">&#39;^(206485|35624|36352|46844|49453|62282)$&#39;</span> /tmp/all-ips-out.csv | csvcut -c network | sed 1d | sort | uniq &gt; /tmp/all-networks-to-block.txt
</span></span><span style="display:flex;"><span>$ grep deny roles/dspace/templates/nginx/abusive-networks.conf.j2 | sort | uniq | wc -l
</span></span><span style="display:flex;"><span>2354
</span></span></code></pre></div><ul>
<li>Combined with the previous networks this brings about 200 more for a total of 2,354 networks
<ul>
<li>I think I need to re-work the ipset stuff in my common Ansible role so that I can add such abusive networks as an iptables ipset / nftables set, and have a cron job to update them daily (from <a href="https://www.spamhaus.org/drop/">Spamhaus&rsquo;s DROP and EDROP lists</a>, for example)</li>
</ul>
</li>
<li>Then I got a list of all the 5,095 IPs from above and used <code>check-spider-ip-hits.sh</code> to purge them from Solr:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ ilri/check-spider-ip-hits.sh -f /tmp/all-ips-to-block.txt -p
</span></span><span style="display:flex;"><span>...
</span></span><span style="display:flex;"><span>Total number of bot hits purged: 197116
</span></span></code></pre></div><ul>
<li>I started a harvest on AReS and it finished in a few hours now that the load on CGSpace is back to a normal level</li>
</ul>
<h2 id="2021-07-20">2021-07-20</h2>
<ul>
<li>Looking again at the IPs making connections to CGSpace over the last few days from these seven ASNs, it&rsquo;s much higher than I noticed yesterday:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ csvgrep -c asn -r <span style="color:#e6db74">&#39;^(49453|46844|206485|62282|36352|35913|35624)$&#39;</span> /tmp/out.csv | csvcut -c ip | sed 1d | sort | uniq | wc -l
</span></span><span style="display:flex;"><span>5643
</span></span></code></pre></div><ul>
<li>I purged 27,000 more hits from the Solr stats using this new list of IPs with my <code>check-spider-ip-hits.sh</code> script</li>
<li>Surprise surprise, I checked the nginx logs from 2021-06-23 when we last had issues with thousands of XMLUI sessions and PostgreSQL connections and I see IPs from the same ASNs!</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ sudo zcat --force /var/log/nginx/access.log.27.gz /var/log/nginx/access.log.28.gz | grep -E <span style="color:#e6db74">&#34; (200|499) &#34;</span> | grep -v -E <span style="color:#e6db74">&#34;(mahider|Googlebot|Turnitin|Grammarly|Unpaywall|UptimeRobot|bot)&#34;</span> | awk <span style="color:#e6db74">&#39;{print $1}&#39;</span> | sort | uniq &gt; /tmp/all-ips-june-23.txt
</span></span><span style="display:flex;"><span>$ ./ilri/resolve-addresses-geoip2.py -i /tmp/all-ips-june-23.txt -o /tmp/out.csv
</span></span><span style="display:flex;"><span>$ csvcut -c 2,4 /tmp/out.csv | sed 1d | sort | uniq -c | sort -n | tail -n <span style="color:#ae81ff">15</span>
</span></span><span style="display:flex;"><span> 265 GOOGLE,15169
</span></span><span style="display:flex;"><span> 277 Silverstar Invest Limited,35624
</span></span><span style="display:flex;"><span> 280 FACEBOOK,32934
</span></span><span style="display:flex;"><span> 288 SAFARICOM-LIMITED,33771
</span></span><span style="display:flex;"><span> 399 AMAZON-AES,14618
</span></span><span style="display:flex;"><span> 427 MICROSOFT-CORP-MSN-AS-BLOCK,8075
</span></span><span style="display:flex;"><span> 455 Opera Software AS,39832
</span></span><span style="display:flex;"><span> 481 MTN NIGERIA Communication limited,29465
</span></span><span style="display:flex;"><span> 502 DEDIPATH-LLC,35913
</span></span><span style="display:flex;"><span> 506 AS-COLOCROSSING,36352
</span></span><span style="display:flex;"><span> 602 UAB Rakrejus,62282
</span></span><span style="display:flex;"><span> 822 ST-BGP,46844
</span></span><span style="display:flex;"><span> 874 Ethiopian Telecommunication Corporation,24757
</span></span><span style="display:flex;"><span> 912 UGB Hosting OU,206485
</span></span><span style="display:flex;"><span> 1607 Global Layer B.V.,49453
</span></span></code></pre></div><ul>
<li>Again it was over 5,000 IPs:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ csvgrep -c asn -r <span style="color:#e6db74">&#39;^(49453|46844|206485|62282|36352|35913|35624)$&#39;</span> /tmp/out.csv | csvcut -c ip | sed 1d | sort | uniq | wc -l
</span></span><span style="display:flex;"><span>5228
</span></span></code></pre></div><ul>
<li>Interestingly, it seems these are five thousand <em>different</em> IP addresses than the attack from last weekend, as there are over 10,000 unique ones if I combine them!</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ cat /tmp/ips-june23.txt /tmp/ips-jul16.txt | sort | uniq | wc -l
</span></span><span style="display:flex;"><span>10458
</span></span></code></pre></div><ul>
<li>I purged all the (26,000) hits from these new IP addresses from Solr as well</li>
<li>Looking back at my notes for the 2019-05 attack I see that I had already identified most of these network providers (!)&hellip;
<ul>
<li>Also, I took a closer look at QuadraNet (AS8100) and found some association with ATOMOHOST LLC and finegroupservers.com and traffictransitsolution.us, so now I need to block/purge that ASN too!</li>
<li>I saw it on the <a href="https://scamalytics.com/ip/isp/2021-06">Scamalytics 2021-06</a> list anyways, so at this point I have no doubt</li>
</ul>
</li>
<li>Adding QuadraNet brings the total networks seen during these two attacks to 262, and the number of unique IPs to 10900:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span># zcat --force /var/log/nginx/access.log /var/log/nginx/access.log.1 /var/log/nginx/access.log.2 /var/log/nginx/access.log.3 /var/log/nginx/access.log.4 /var/log/nginx/access.log.5 /var/log/nginx/access.log.27.gz /var/log/nginx/access.log.28.gz | grep -E <span style="color:#e6db74">&#34; (200|499) &#34;</span> | grep -v -E <span style="color:#e6db74">&#34;(mahider|Googlebot|Turnitin|Grammarly|Unpaywall|UptimeRobot|bot)&#34;</span> | awk <span style="color:#e6db74">&#39;{print $1}&#39;</span> | sort | uniq &gt; /tmp/ddos-ips.txt
</span></span><span style="display:flex;"><span># wc -l /tmp/ddos-ips.txt
</span></span><span style="display:flex;"><span>54002 /tmp/ddos-ips.txt
</span></span><span style="display:flex;"><span>$ ./ilri/resolve-addresses-geoip2.py -i /tmp/ddos-ips.txt -o /tmp/ddos-ips.csv
</span></span><span style="display:flex;"><span>$ csvgrep -c asn -r <span style="color:#e6db74">&#39;^(49453|46844|206485|62282|36352|35913|35624|8100)$&#39;</span> /tmp/ddos-ips.csv | csvcut -c ip | sed 1d | sort | uniq &gt; /tmp/ddos-ips-to-purge.txt
</span></span><span style="display:flex;"><span>$ wc -l /tmp/ddos-ips-to-purge.txt
</span></span><span style="display:flex;"><span>10900 /tmp/ddos-ips-to-purge.txt
</span></span><span style="display:flex;"><span>$ csvgrep -c asn -r <span style="color:#e6db74">&#39;^(49453|46844|206485|62282|36352|35913|35624|8100)$&#39;</span> /tmp/ddos-ips.csv | csvcut -c network | sed 1d | sort | uniq &gt; /tmp/ddos-networks-to-block.txt
</span></span><span style="display:flex;"><span>$ wc -l /tmp/ddos-networks-to-block.txt
</span></span><span style="display:flex;"><span>262 /tmp/ddos-networks-to-block.txt
</span></span></code></pre></div><ul>
<li>The new total number of networks to block, including the network prefixes for these ASNs downloaded from asn.ipinfo.app, is 4,007:</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ wget https://asn.ipinfo.app/api/text/nginx/AS49453 <span style="color:#ae81ff">\
</span></span></span><span style="display:flex;"><span><span style="color:#ae81ff"></span>https://asn.ipinfo.app/api/text/nginx/AS46844 \
</span></span><span style="display:flex;"><span>https://asn.ipinfo.app/api/text/nginx/AS206485 \
</span></span><span style="display:flex;"><span>https://asn.ipinfo.app/api/text/nginx/AS62282 \
</span></span><span style="display:flex;"><span>https://asn.ipinfo.app/api/text/nginx/AS36352 \
</span></span><span style="display:flex;"><span>https://asn.ipinfo.app/api/text/nginx/AS35913 \
</span></span><span style="display:flex;"><span>https://asn.ipinfo.app/api/text/nginx/AS35624 \
</span></span><span style="display:flex;"><span>https://asn.ipinfo.app/api/text/nginx/AS8100
</span></span><span style="display:flex;"><span>$ cat AS* /tmp/ddos-networks-to-block.txt | sed -e <span style="color:#e6db74">&#39;/^$/d&#39;</span> -e <span style="color:#e6db74">&#39;/^#/d&#39;</span> -e <span style="color:#e6db74">&#39;/^{/d&#39;</span> -e <span style="color:#e6db74">&#39;s/deny //&#39;</span> -e <span style="color:#e6db74">&#39;s/;//&#39;</span> | sort | uniq | wc -l
</span></span><span style="display:flex;"><span>4007
</span></span></code></pre></div><ul>
<li>I re-applied these networks to nginx on CGSpace (linode18) and DSpace Test (linode26), and purged 14,000 more Solr statistics hits from these IPs</li>
</ul>
<h2 id="2021-07-22">2021-07-22</h2>
<ul>
<li>Udana emailed to say that the link to the iwmi.csv export isn&rsquo;t working
<ul>
<li>I looked and both the nginx config and systemd service unit were using invalid paths&hellip;</li>
<li>I&rsquo;m not sure why it had been working for so long until now!</li>
</ul>
</li>
<li>Maria Garruccio asked if we can move the &ldquo;Context&rdquo; menu up to the top of the right-hand sidebar navigation menu
<ul>
<li>The last time we changed this was in 2020 (XMLUI&rsquo;s <code>Navigation.java</code>), and I think it makes a lot of sense so I moved it up, under the account block:</li>
</ul>
</li>
</ul>
<p><img src="/cgspace-notes/2021/07/context-navigation-menu.png" alt="CGSpace XMLUI navigation"></p>
<h2 id="2021-07-23">2021-07-23</h2>
<ul>
<li>Spend some time reviewing patches for the upcoming DSpace 6.4 release</li>
</ul>
<h2 id="2021-07-24">2021-07-24</h2>
<ul>
<li>Spend some time reviewing patches for the upcoming DSpace 6.4 release</li>
<li>Run all system updates on DSpace Test (linode26) and reboot it</li>
</ul>
<h2 id="2021-07-29">2021-07-29</h2>
<ul>
<li>I figured out why <a href="https://github.com/ilri/OpenRXV/issues/62">come communities / collections were seemingly missing from AReS</a>
<ul>
<li>It was not related to harvesting, but rather to our value mappings replacing values like &ldquo;CGIAR Research Program on Livestock&rdquo; with &ldquo;Livestock&rdquo;</li>
</ul>
</li>
</ul>
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