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<meta property="og:description" content="2022-04-01 I did G1GC tests on DSpace Test (linode26) to compliment the CMS tests I did yesterday The Discovery indexing took this long: real 334m33.625s user 227m51.331s sys 3m43.037s 2022-04-04 Start a full harvest on AReS Help Marianne with submit/approve access on a new collection on CGSpace Go back in Gaia’s batch reports to find records that she indicated for replacing on CGSpace (ie, those with better new copies, new versions, etc) Looking at the Solr statistics for 2022-03 on CGSpace I see 54." />
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<meta name="twitter:description" content="2022-04-01 I did G1GC tests on DSpace Test (linode26) to compliment the CMS tests I did yesterday The Discovery indexing took this long: real 334m33.625s user 227m51.331s sys 3m43.037s 2022-04-04 Start a full harvest on AReS Help Marianne with submit/approve access on a new collection on CGSpace Go back in Gaia’s batch reports to find records that she indicated for replacing on CGSpace (ie, those with better new copies, new versions, etc) Looking at the Solr statistics for 2022-03 on CGSpace I see 54."/>
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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/2022-04/">April, 2022</a></h2>
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<time datetime="2022-04-01T10:53:39+03:00">Fri Apr 01, 2022</time>
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<h2 id="2022-04-01">2022-04-01</h2>
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<ul>
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<li>I did G1GC tests on DSpace Test (linode26) to compliment the CMS tests I did yesterday
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<ul>
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<li>The Discovery indexing took this long:</li>
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</ul>
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</li>
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</ul>
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<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>real 334m33.625s
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</span></span><span style="display:flex;"><span>user 227m51.331s
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</span></span><span style="display:flex;"><span>sys 3m43.037s
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</span></span></code></pre></div><h2 id="2022-04-04">2022-04-04</h2>
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<ul>
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<li>Start a full harvest on AReS</li>
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<li>Help Marianne with submit/approve access on a new collection on CGSpace</li>
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<li>Go back in Gaia’s batch reports to find records that she indicated for replacing on CGSpace (ie, those with better new copies, new versions, etc)</li>
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<li>Looking at the Solr statistics for 2022-03 on CGSpace
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<ul>
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<li>I see 54.229.218.204 on Amazon AWS made 49,000 requests, some of which with this user agent: <code>Apache-HttpClient/4.5.9 (Java/1.8.0_322)</code>, and many others with a normal browser agent, so that’s fishy!</li>
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<li>The DSpace agent pattern <code>http.?agent</code> seems to have caught the first ones, but I’ll purge the IP ones</li>
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<li>I see 40.77.167.80 is Bing or MSN Bot, but using a normal browser user agent, and if I search Solr for <code>dns:*msnbot* AND dns:*.msn.com.</code> I see over 100,000, which is a problem I noticed a few months ago too…</li>
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<li>I extracted the MSN Bot IPs from Solr using an IP facet, then used the <code>check-spider-ip-hits.sh</code> script to purge them</li>
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</ul>
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</li>
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</ul>
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<h2 id="2022-04-10">2022-04-10</h2>
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<ul>
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<li>Start a full harvest on AReS</li>
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</ul>
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<h2 id="2022-04-13">2022-04-13</h2>
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<ul>
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<li>UptimeRobot mailed to say that CGSpace was down
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<ul>
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<li>I looked and found the load at 44…</li>
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</ul>
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</li>
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<li>There seem to be a lot of locks from the XMLUI:</li>
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</ul>
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<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>$ psql -c <span style="color:#e6db74">'SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;'</span> | grep -o -E <span style="color:#e6db74">'(dspaceWeb|dspaceApi)'</span> | sort | uniq -c | sort -n
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</span></span><span style="display:flex;"><span> 3173 dspaceWeb
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</span></span></code></pre></div><ul>
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<li>Looking at the top IPs in nginx’s access log one IP in particular stands out:</li>
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</ul>
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<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> 941 66.249.66.222
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</span></span><span style="display:flex;"><span> 1224 95.108.213.28
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</span></span><span style="display:flex;"><span> 2074 157.90.209.76
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</span></span><span style="display:flex;"><span> 3064 66.249.66.221
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</span></span><span style="display:flex;"><span> 95743 185.192.69.15
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</span></span></code></pre></div><ul>
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<li>185.192.69.15 is in the UK</li>
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<li>I added a block for that IP in nginx and the load went down…</li>
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</ul>
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<h2 id="2022-04-16">2022-04-16</h2>
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<ul>
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<li>Start harvest on AReS</li>
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</ul>
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<h2 id="2022-04-18">2022-04-18</h2>
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<ul>
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<li>I woke up to several notices from UptimeRobot that CGSpace had gone down and up in the night (of course I’m on holiday out of the country for Easter)
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<ul>
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<li>I see there are many locks in use from the XMLUI:</li>
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</ul>
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</li>
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</ul>
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<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>$ psql -c <span style="color:#e6db74">'SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;'</span> | grep -o -E <span style="color:#e6db74">'(dspaceWeb|dspaceApi)'</span> | sort | uniq -c
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</span></span><span style="display:flex;"><span> 8932 dspaceWeb
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</span></span></code></pre></div><ul>
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<li>Looking at the top IPs making requests it seems they are Yandex, bingbot, and Googlebot:</li>
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</ul>
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<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 /var/log/nginx/access.log /var/log/nginx/access.log.1 | awk <span style="color:#e6db74">'{print $1}'</span> | sort | uniq -c | sort -h
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</span></span><span style="display:flex;"><span> 752 69.162.124.231
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</span></span><span style="display:flex;"><span> 759 66.249.64.213
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</span></span><span style="display:flex;"><span> 864 66.249.66.222
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</span></span><span style="display:flex;"><span> 905 2a01:4f8:221:f::2
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</span></span><span style="display:flex;"><span> 1013 84.33.2.97
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</span></span><span style="display:flex;"><span> 1201 157.55.39.159
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</span></span><span style="display:flex;"><span> 1204 157.55.39.144
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</span></span><span style="display:flex;"><span> 1209 157.55.39.102
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</span></span><span style="display:flex;"><span> 1217 157.55.39.161
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</span></span><span style="display:flex;"><span> 1252 207.46.13.177
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</span></span><span style="display:flex;"><span> 1274 157.55.39.162
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</span></span><span style="display:flex;"><span> 2553 66.249.66.221
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</span></span><span style="display:flex;"><span> 2941 95.108.213.28
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</span></span></code></pre></div><ul>
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<li>One IP is using a stange user agent though:</li>
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</ul>
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<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>84.33.2.97 - - [18/Apr/2022:00:20:38 +0200] "GET /bitstream/handle/10568/109581/Banana_Blomme%20_2020.pdf.jpg HTTP/1.1" 404 10890 "-" "SomeRandomText"
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</span></span></code></pre></div><ul>
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<li>Overall, it seems we had 17,000 unique IPs connecting in the last nine hours (currently 9:14AM and log file rolled over at 00:00):</li>
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</ul>
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<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 /var/log/nginx/access.log | awk <span style="color:#e6db74">'{print $1}'</span> | sort | uniq | wc -l
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</span></span><span style="display:flex;"><span>17314
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</span></span></code></pre></div><ul>
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<li>That’s a lot of unique IPs, and I see some patterns of IPs in China making ten to twenty requests each
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<ul>
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<li>The ISPs I’ve seen so far are ChinaNet and China Unicom</li>
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</ul>
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</li>
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<li>I extracted all the IPs from today and resolved them:</li>
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</ul>
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<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 /var/log/nginx/access.log | awk <span style="color:#e6db74">'{print $1}'</span> | sort | uniq > /tmp/2022-04-18-ips.txt
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</span></span><span style="display:flex;"><span>$ ./ilri/resolve-addresses-geoip2.py -i /tmp/2022-04-18-ips.txt -o /tmp/2022-04-18-ips.csv
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</span></span></code></pre></div><ul>
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<li>The top ASNs by IP are:</li>
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</ul>
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<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/2022-04-18-ips.csv | sed 1d | sort | uniq -c | sort -n | tail -n <span style="color:#ae81ff">10</span>
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</span></span><span style="display:flex;"><span> 102 GOOGLE
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</span></span><span style="display:flex;"><span> 139 Maxihost LTDA
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</span></span><span style="display:flex;"><span> 165 AMAZON-02
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</span></span><span style="display:flex;"><span> 393 "China Mobile Communications Group Co., Ltd."
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</span></span><span style="display:flex;"><span> 473 AMAZON-AES
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</span></span><span style="display:flex;"><span> 616 China Mobile communications corporation
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</span></span><span style="display:flex;"><span> 642 M247 Ltd
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</span></span><span style="display:flex;"><span> 2336 HostRoyale Technologies Pvt Ltd
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</span></span><span style="display:flex;"><span> 4556 Chinanet
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</span></span><span style="display:flex;"><span> 5527 CHINA UNICOM China169 Backbone
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</span></span><span style="display:flex;"><span>$ csvcut -c <span style="color:#ae81ff">4</span> /tmp/2022-04-18-ips.csv | sed 1d | sort | uniq -c | sort -n | tail -n <span style="color:#ae81ff">10</span>
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</span></span><span style="display:flex;"><span> 139 262287
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</span></span><span style="display:flex;"><span> 165 16509
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</span></span><span style="display:flex;"><span> 180 204287
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</span></span><span style="display:flex;"><span> 393 9808
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</span></span><span style="display:flex;"><span> 473 14618
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</span></span><span style="display:flex;"><span> 615 56041
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</span></span><span style="display:flex;"><span> 642 9009
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</span></span><span style="display:flex;"><span> 2156 203020
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</span></span><span style="display:flex;"><span> 4556 4134
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</span></span><span style="display:flex;"><span> 5527 4837
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</span></span></code></pre></div><ul>
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<li>I spot checked a few IPs from each of these and they are definitely just making bullshit requests to Discovery and HTML sitemap etc</li>
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<li>I will download the IP blocks for each ASN except Google and Amazon and ban them</li>
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</ul>
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<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/AS4837 https://asn.ipinfo.app/api/text/nginx/AS4134 https://asn.ipinfo.app/api/text/nginx/AS203020 https://asn.ipinfo.app/api/text/nginx/AS9009 https://asn.ipinfo.app/api/text/nginx/AS56041 https://asn.ipinfo.app/api/text/nginx/AS9808
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</span></span><span style="display:flex;"><span>$ cat AS* | sed -e <span style="color:#e6db74">'/^$/d'</span> -e <span style="color:#e6db74">'/^#/d'</span> -e <span style="color:#e6db74">'/^{/d'</span> -e <span style="color:#e6db74">'s/deny //'</span> -e <span style="color:#e6db74">'s/;//'</span> | sort | uniq | wc -l
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</span></span><span style="display:flex;"><span>20296
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</span></span></code></pre></div><ul>
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<li>I extracted the IPv4 and IPv6 networks:</li>
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</ul>
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<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ cat AS* | sed -e <span style="color:#e6db74">'/^$/d'</span> -e <span style="color:#e6db74">'/^#/d'</span> -e <span style="color:#e6db74">'/^{/d'</span> -e <span style="color:#e6db74">'s/deny //'</span> -e <span style="color:#e6db74">'s/;//'</span> | grep <span style="color:#e6db74">":"</span> | sort > /tmp/ipv6-networks.txt
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</span></span><span style="display:flex;"><span>$ cat AS* | sed -e <span style="color:#e6db74">'/^$/d'</span> -e <span style="color:#e6db74">'/^#/d'</span> -e <span style="color:#e6db74">'/^{/d'</span> -e <span style="color:#e6db74">'s/deny //'</span> -e <span style="color:#e6db74">'s/;//'</span> | grep -v <span style="color:#e6db74">":"</span> | sort > /tmp/ipv4-networks.txt
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</span></span></code></pre></div><ul>
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<li>I suspect we need to aggregate these networks since they are so many and nftables doesn’t like it when they overlap:</li>
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</ul>
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<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ wc -l /tmp/ipv4-networks.txt
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</span></span><span style="display:flex;"><span>15464 /tmp/ipv4-networks.txt
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</span></span><span style="display:flex;"><span>$ aggregate6 /tmp/ipv4-networks.txt | wc -l
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</span></span><span style="display:flex;"><span>2781
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</span></span><span style="display:flex;"><span>$ wc -l /tmp/ipv6-networks.txt
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</span></span><span style="display:flex;"><span>4833 /tmp/ipv6-networks.txt
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</span></span><span style="display:flex;"><span>$ aggregate6 /tmp/ipv6-networks.txt | wc -l
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</span></span><span style="display:flex;"><span>338
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</span></span></code></pre></div><ul>
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<li>I deployed these lists on CGSpace, ran all updates, and rebooted the server
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<ul>
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<li>This list is SURELY too broad because we will block legitimate users in China… but right now how can I discern?</li>
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<li>Also, I need to purge the hits from these 14,000 IPs in Solr when I get time</li>
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</ul>
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</li>
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<li>Looking back at the Munin graphs a few hours later I see this was indeed some kind of spike that was out of the ordinary:</li>
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</ul>
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<p><img src="/cgspace-notes/2022/04/postgres_connections_ALL-day.png" alt="PostgreSQL connections day">
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<img src="/cgspace-notes/2022/04/jmx_dspace_sessions-day.png" alt="DSpace sessions day"></p>
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<ul>
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<li>I used <code>grepcidr</code> with the aggregated network lists to extract IPs matching those networks from the nginx logs for the past day:</li>
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</ul>
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<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 /var/log/nginx/access.log /var/log/nginx/access.log.1 | awk <span style="color:#e6db74">'{print $1}'</span> | sort -u > /tmp/ips.log
|
|
</span></span><span style="display:flex;"><span># <span style="color:#66d9ef">while</span> read -r network; <span style="color:#66d9ef">do</span> grepcidr $network /tmp/ips.log >> /tmp/ipv4-ips.txt; <span style="color:#66d9ef">done</span> < /tmp/ipv4-networks-aggregated.txt
|
|
</span></span><span style="display:flex;"><span># <span style="color:#66d9ef">while</span> read -r network; <span style="color:#66d9ef">do</span> grepcidr $network /tmp/ips.log >> /tmp/ipv6-ips.txt; <span style="color:#66d9ef">done</span> < /tmp/ipv6-networks-aggregated.txt
|
|
</span></span><span style="display:flex;"><span># wc -l /tmp/ipv4-ips.txt
|
|
</span></span><span style="display:flex;"><span>15313 /tmp/ipv4-ips.txt
|
|
</span></span><span style="display:flex;"><span># wc -l /tmp/ipv6-ips.txt
|
|
</span></span><span style="display:flex;"><span>19 /tmp/ipv6-ips.txt
|
|
</span></span></code></pre></div><ul>
|
|
<li>Then I purged them from Solr using the <code>check-spider-ip-hits.sh</code>:</li>
|
|
</ul>
|
|
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ ./ilri/check-spider-ip-hits.sh -f /tmp/ipv4-ips.txt -p
|
|
</span></span></code></pre></div><h2 id="2022-04-23">2022-04-23</h2>
|
|
<ul>
|
|
<li>A handful of spider user agents that I identified were merged into COUNTER-Robots so I updated the ILRI override in our DSpace and regenerated the <code>example</code> file that contains most patterns
|
|
<ul>
|
|
<li>I updated CGSpace, then ran all system updates and rebooted the host</li>
|
|
<li>I also ran <code>dspace cleanup -v</code> to prune the database</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
<h2 id="2022-04-24">2022-04-24</h2>
|
|
<ul>
|
|
<li>Start a harvest on AReS</li>
|
|
</ul>
|
|
<h2 id="2022-04-25">2022-04-25</h2>
|
|
<ul>
|
|
<li>Looking at the countries on AReS I decided to collect a list to remind Jacquie at WorldFish again about how many incorrect ones they have
|
|
<ul>
|
|
<li>There are about sixty incorrect ones, some of which I can correct via the value mappings on AReS, but most I can’t</li>
|
|
<li>I set up value mappings for seventeen countries, then sent another sixty or so to Jacquie and Salem to hopefully delete</li>
|
|
</ul>
|
|
</li>
|
|
<li>I notice we have over 1,000 items with region <code>Africa South of Sahara</code>
|
|
<ul>
|
|
<li>I am surprised to see these because we did a mass migration to <code>Sub-Saharan Africa</code> in 2020-10 when we aligned to UN M.49</li>
|
|
<li>Oh! It seems I used a capital O in <code>Of</code>!</li>
|
|
<li>This is curious, I see we missed <code>East Asia</code> and <code>Northern America</code>, because those are still in our list, but UN M.49 uses <code>Eastern Asia</code> and <code>Northern America</code>… I will have to raise that with Peter and Abenet later</li>
|
|
<li>For now I will just re-run my fixes:</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>$ cat /tmp/regions.csv
|
|
</span></span><span style="display:flex;"><span>cg.coverage.region,correct
|
|
</span></span><span style="display:flex;"><span>East Africa,Eastern Africa
|
|
</span></span><span style="display:flex;"><span>West Africa,Western Africa
|
|
</span></span><span style="display:flex;"><span>Southeast Asia,South-eastern Asia
|
|
</span></span><span style="display:flex;"><span>South Asia,Southern Asia
|
|
</span></span><span style="display:flex;"><span>Africa South of Sahara,Sub-Saharan Africa
|
|
</span></span><span style="display:flex;"><span>North Africa,Northern Africa
|
|
</span></span><span style="display:flex;"><span>West Asia,Western Asia
|
|
</span></span><span style="display:flex;"><span>$ ./ilri/fix-metadata-values.py -i /tmp/regions.csv -db dspace -u dspace -p <span style="color:#e6db74">'fuuu'</span> -f cg.coverage.region -m <span style="color:#ae81ff">227</span> -t correct
|
|
</span></span></code></pre></div><ul>
|
|
<li>Then I started a new harvest on AReS</li>
|
|
</ul>
|
|
<h2 id="2022-04-27">2022-04-27</h2>
|
|
<ul>
|
|
<li>I woke up to many up down notices for CGSpace from UptimeRobot
|
|
<ul>
|
|
<li>The server has load 111.0… sigh.</li>
|
|
</ul>
|
|
</li>
|
|
<li>According to Grafana it seems to have started at 4:00 AM</li>
|
|
</ul>
|
|
<p><img src="/cgspace-notes/2022/04/cgspace-load.png" alt="Grafana load"></p>
|
|
<ul>
|
|
<li>There are a metric fuck ton of database locks from the XMLUI:</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>$ psql -c <span style="color:#e6db74">'SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;'</span> | grep -o -E <span style="color:#e6db74">'(dspaceWeb|dspaceApi)'</span> | sort | uniq -c
|
|
</span></span><span style="display:flex;"><span> 128 dspaceApi
|
|
</span></span><span style="display:flex;"><span> 16890 dspaceWeb
|
|
</span></span></code></pre></div><ul>
|
|
<li>As for the server logs, I don’t see many IPs connecting today:</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 /var/log/nginx/access.log | awk <span style="color:#e6db74">'{print $1}'</span> | sort | uniq | wc -l
|
|
</span></span><span style="display:flex;"><span>2924
|
|
</span></span></code></pre></div><ul>
|
|
<li>But there appear to be some IPs making many requests:</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 /var/log/nginx/access.log | awk <span style="color:#e6db74">'{print $1}'</span> | sort | uniq -c | sort -h
|
|
</span></span><span style="display:flex;"><span>...
|
|
</span></span><span style="display:flex;"><span> 345 207.46.13.53
|
|
</span></span><span style="display:flex;"><span> 646 66.249.66.222
|
|
</span></span><span style="display:flex;"><span> 678 54.90.79.112
|
|
</span></span><span style="display:flex;"><span> 1529 136.243.148.249
|
|
</span></span><span style="display:flex;"><span> 1797 54.175.8.110
|
|
</span></span><span style="display:flex;"><span> 2304 174.129.118.171
|
|
</span></span><span style="display:flex;"><span> 2523 66.249.66.221
|
|
</span></span><span style="display:flex;"><span> 2632 52.73.204.196
|
|
</span></span><span style="display:flex;"><span> 2667 54.174.240.122
|
|
</span></span><span style="display:flex;"><span> 5206 35.172.193.232
|
|
</span></span><span style="display:flex;"><span> 5646 35.153.131.101
|
|
</span></span><span style="display:flex;"><span> 6373 3.85.92.145
|
|
</span></span><span style="display:flex;"><span> 7383 34.227.10.4
|
|
</span></span><span style="display:flex;"><span> 8330 100.24.63.172
|
|
</span></span><span style="display:flex;"><span> 8342 34.236.36.176
|
|
</span></span><span style="display:flex;"><span> 8369 44.200.190.111
|
|
</span></span><span style="display:flex;"><span> 8371 3.238.116.153
|
|
</span></span><span style="display:flex;"><span> 8391 18.232.101.158
|
|
</span></span><span style="display:flex;"><span> 8631 3.239.81.247
|
|
</span></span><span style="display:flex;"><span> 8634 54.82.125.225
|
|
</span></span></code></pre></div><ul>
|
|
<li>54.82.125.225, 3.239.81.247, 18.232.101.158, 3.238.116.153, 44.200.190.111, 34.236.36.176, 100.24.63.172, 3.85.92.145, 35.153.131.101, 35.172.193.232, 54.174.240.122, 52.73.204.196, 174.129.118.171, 54.175.8.110, and 54.90.79.112 are all on Amazon and using this normal-looking user agent:</li>
|
|
</ul>
|
|
<pre tabindex="0"><code>Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.125 Safari/537.3
|
|
</code></pre><ul>
|
|
<li>None of these hosts are re-using their DSpace session ID so they are definitely not normal browsers as they are claiming:</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 54.82.125.225 dspace.log.2022-04-27 | grep -oE <span style="color:#e6db74">'session_id=[A-Z0-9]{32}:ip_addr='</span> | sort | uniq | wc -l
|
|
</span></span><span style="display:flex;"><span>5760
|
|
</span></span><span style="display:flex;"><span>$ grep 3.239.81.247 dspace.log.2022-04-27 | grep -oE <span style="color:#e6db74">'session_id=[A-Z0-9]{32}:ip_addr='</span> | sort | uniq | wc -l
|
|
</span></span><span style="display:flex;"><span>6053
|
|
</span></span><span style="display:flex;"><span>$ grep 18.232.101.158 dspace.log.2022-04-27 | grep -oE <span style="color:#e6db74">'session_id=[A-Z0-9]{32}:ip_addr='</span> | sort | uniq | wc -l
|
|
</span></span><span style="display:flex;"><span>5841
|
|
</span></span><span style="display:flex;"><span>$ grep 3.238.116.153 dspace.log.2022-04-27 | grep -oE <span style="color:#e6db74">'session_id=[A-Z0-9]{32}:ip_addr='</span> | sort | uniq | wc -l
|
|
</span></span><span style="display:flex;"><span>5887
|
|
</span></span><span style="display:flex;"><span>$ grep 44.200.190.111 dspace.log.2022-04-27 | grep -oE <span style="color:#e6db74">'session_id=[A-Z0-9]{32}:ip_addr='</span> | sort | uniq | wc -l
|
|
</span></span><span style="display:flex;"><span>5899
|
|
</span></span><span style="display:flex;"><span>...
|
|
</span></span></code></pre></div><ul>
|
|
<li>And we can see a massive spike in sessions in Munin:</li>
|
|
</ul>
|
|
<p><img src="/cgspace-notes/2022/04/jmx_dspace_sessions-day2.png" alt="Grafana load"></p>
|
|
<ul>
|
|
<li>I see the following IPs using that user agent today:</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 <span style="color:#e6db74">'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.125 Safari/537.36'</span> /var/log/nginx/access.log | awk <span style="color:#e6db74">'{print $1}'</span> | sort | uniq -c | sort -h
|
|
</span></span><span style="display:flex;"><span> 678 54.90.79.112
|
|
</span></span><span style="display:flex;"><span> 1797 54.175.8.110
|
|
</span></span><span style="display:flex;"><span> 2697 174.129.118.171
|
|
</span></span><span style="display:flex;"><span> 2765 52.73.204.196
|
|
</span></span><span style="display:flex;"><span> 3072 54.174.240.122
|
|
</span></span><span style="display:flex;"><span> 5206 35.172.193.232
|
|
</span></span><span style="display:flex;"><span> 5646 35.153.131.101
|
|
</span></span><span style="display:flex;"><span> 6783 3.85.92.145
|
|
</span></span><span style="display:flex;"><span> 7763 34.227.10.4
|
|
</span></span><span style="display:flex;"><span> 8738 100.24.63.172
|
|
</span></span><span style="display:flex;"><span> 8748 34.236.36.176
|
|
</span></span><span style="display:flex;"><span> 8787 3.238.116.153
|
|
</span></span><span style="display:flex;"><span> 8794 18.232.101.158
|
|
</span></span><span style="display:flex;"><span> 8806 44.200.190.111
|
|
</span></span><span style="display:flex;"><span> 9021 54.82.125.225
|
|
</span></span><span style="display:flex;"><span> 9027 3.239.81.247
|
|
</span></span></code></pre></div><ul>
|
|
<li>I added those IPs to the firewall and then purged their hits from Solr:</li>
|
|
</ul>
|
|
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span>$ ./ilri/check-spider-ip-hits.sh -f /tmp/ips.txt -p
|
|
</span></span><span style="display:flex;"><span>Purging 6024 hits from 100.24.63.172 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 1719 hits from 174.129.118.171 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 5972 hits from 18.232.101.158 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 6053 hits from 3.238.116.153 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 6228 hits from 3.239.81.247 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 5305 hits from 34.227.10.4 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 6002 hits from 34.236.36.176 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 3908 hits from 35.153.131.101 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 3692 hits from 35.172.193.232 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 4525 hits from 3.85.92.145 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 6048 hits from 44.200.190.111 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 1942 hits from 52.73.204.196 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 1944 hits from 54.174.240.122 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 1264 hits from 54.175.8.110 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 6117 hits from 54.82.125.225 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 486 hits from 54.90.79.112 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: 67229
|
|
</span></span></code></pre></div><ul>
|
|
<li>Then I created a CSV with these IPs and reported them to AbuseIPDB.com:</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.csv
|
|
</span></span><span style="display:flex;"><span>IP,Categories,ReportDate,Comment
|
|
</span></span><span style="display:flex;"><span>100.24.63.172,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>174.129.118.171,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>18.232.101.158,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>3.238.116.153,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>3.239.81.247,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>34.227.10.4,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>34.236.36.176,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>35.153.131.101,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>35.172.193.232,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>3.85.92.145,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>44.200.190.111,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>52.73.204.196,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>54.174.240.122,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>54.175.8.110,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>54.82.125.225,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span><span style="display:flex;"><span>54.90.79.112,4,2022-04-27T04:00:37-10:00,"Excessive automated HTTP requests"
|
|
</span></span></code></pre></div><ul>
|
|
<li>An hour or so later two more IPs on Amazon started making requests with that user agent too:
|
|
<ul>
|
|
<li>3.82.22.114</li>
|
|
<li>18.234.122.84</li>
|
|
</ul>
|
|
</li>
|
|
<li>Load on the server went back up, sigh</li>
|
|
<li>I added those IPs to the firewall drop list and purged their hits from Solr as well:</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/ips.txt -p
|
|
</span></span><span style="display:flex;"><span>Purging 2839 hits from 3.82.22.114 in statistics
|
|
</span></span><span style="display:flex;"><span>Purging 592 hits from 18.234.122.84 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: 343
|
|
</span></span></code></pre></div><ul>
|
|
<li>Oh god, there are more coming
|
|
<ul>
|
|
<li>3.81.21.251</li>
|
|
<li>54.162.92.93</li>
|
|
<li>54.226.171.89</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
<h2 id="2022-04-28">2022-04-28</h2>
|
|
<ul>
|
|
<li>Had a meeting with FAO and the team from SEAFDAC, who run many repositories that are integrated with AGROVOC
|
|
<ul>
|
|
<li>Elvi from SEAFDAC has modified the <a href="https://github.com/eulereadgbe/DSpace/blob/sair-6.3/dspace-api/src/main/java/org/dspace/content/authority/AgrovocAuthority.java">DSpace-CRIS 6.x VIAF lookup plugin to query AGROVOC</a></li>
|
|
<li>Also, they are doing a nice integration similar to the WorldFish / MELSpace repositories where they store the AGROVOC URIs in DSpace and show the terms with an icon in the UI</li>
|
|
<li>See: <a href="https://repository.seafdec.org.ph/handle/10862/6320">https://repository.seafdec.org.ph/handle/10862/6320</a></li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
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</div> <!-- /.blog-main -->
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<aside class="col-sm-3 ml-auto blog-sidebar">
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<section class="sidebar-module">
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<h4>Recent Posts</h4>
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<ol class="list-unstyled">
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<li><a href="/cgspace-notes/2022-07/">July, 2022</a></li>
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<li><a href="/cgspace-notes/2022-06/">June, 2022</a></li>
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<li><a href="/cgspace-notes/2022-05/">May, 2022</a></li>
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<li><a href="/cgspace-notes/2022-04/">April, 2022</a></li>
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<li><a href="/cgspace-notes/2022-03/">March, 2022</a></li>
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</ol>
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</section>
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<section class="sidebar-module">
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<h4>Links</h4>
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<ol class="list-unstyled">
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<li><a href="https://cgspace.cgiar.org">CGSpace</a></li>
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<li><a href="https://dspacetest.cgiar.org">DSpace Test</a></li>
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<li><a href="https://github.com/ilri/DSpace">CGSpace @ GitHub</a></li>
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</ol>
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</section>
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</aside>
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</div> <!-- /.row -->
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</div> <!-- /.container -->
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<footer class="blog-footer">
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<p dir="auto">
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Blog template created by <a href="https://twitter.com/mdo">@mdo</a>, ported to Hugo by <a href='https://twitter.com/mralanorth'>@mralanorth</a>.
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</p>
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<p>
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<a href="#">Back to top</a>
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</p>
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</footer>
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</body>
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</html>
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