--- title: "July, 2021" date: 2021-07-01T08:53:07+03:00 author: "Alan Orth" categories: ["Notes"] --- ## 2021-07-01 - Export another list of ALL subjects on CGSpace, including AGROVOC and non-AGROVOC for Enrico: ```console localhost/dspace63= > \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 ``` ## 2021-07-04 - Update all Docker containers on the AReS server (linode20) and rebuild OpenRXV: ```console $ cd OpenRXV $ docker-compose -f docker/docker-compose.yml down $ docker images | grep -v ^REPO | sed 's/ \+/:/g' | cut -d: -f1,2 | xargs -L1 docker pull $ docker-compose -f docker/docker-compose.yml build ``` - Then run all system updates and reboot the server - After the server came back up I cloned the `openrxv-items-final` index to `openrxv-items-temp` and started the plugins - This will hopefully be faster than a full re-harvest... - I opened a few GitHub issues for OpenRXV bugs: - [Hide "metadata structure" section in repository setup](https://github.com/ilri/OpenRXV/issues/103) - [Improve "start plugins" and "commit indexing" buttons](https://github.com/ilri/OpenRXV/issues/104) - [Allow running plugins individually](https://github.com/ilri/OpenRXV/issues/105) - [Hide the "DSpace add missing items"](https://github.com/ilri/OpenRXV/issues/106) - Rebuild DSpace Test (linode26) from a fresh Ubuntu 20.04 image on Linode - The start plugins on AReS had seventy-five errors from the `dspace_add_missing_items` plugin for some reason so I had to start a fresh indexing - I noticed that the WorldFish data has dozens of incorrect countries so I should talk to Salem about that because they manage it - Also I noticed that we weren't using the Country formatter in OpenRXV for the WorldFish country field, so some values don't get mapped properly - 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 ## 2021-07-05 - The AReS harvesting last night succeeded and I started the plugins - Margarita from CCAFS asked if we can create a new field for AICCRA publications - I asked her to clarify what they want - AICCRA is an initiative so it might be better to create new field for that, for example `cg.contributor.initiative` ## 2021-07-06 - Atmire merged my spider user agent changes from last month so I will update the `example` list we use in DSpace and remove the new ones from my `ilri` override file - Also, I concatenated all our user agents into one file and purged all hits: ```console $ ./ilri/check-spider-hits.sh -f /tmp/spiders -p Purging 95 hits from Drupal in statistics Purging 38 hits from DTS Agent in statistics Purging 601 hits from Microsoft Office Existence Discovery in statistics Purging 51 hits from Site24x7 in statistics Purging 62 hits from Trello in statistics Purging 13574 hits from WhatsApp in statistics Purging 144 hits from FlipboardProxy in statistics Purging 37 hits from LinkWalker in statistics Purging 1 hits from [Ll]ink.?[Cc]heck.? in statistics Purging 427 hits from WordPress in statistics Total number of bot hits purged: 15030 ``` - Meet with the CGIAR–AGROVOC task group to discuss how we want to do the workflow for submitting new terms to AGROVOC - I extracted another list of all subjects to check against AGROVOC: ```console \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; $ csvcut -c 1 /tmp/2021-07-06-all-subjects.csv | sed 1d > /tmp/2021-07-06-all-subjects.txt $ ./ilri/agrovoc-lookup.py -i /tmp/2021-07-06-all-subjects.txt -o /tmp/2021-07-06-agrovoc-results-all-subjects.csv -d ``` - Test [Hrafn Malmquist's proposed DBCP2 changes](https://github.com/DSpace/DSpace/pull/3162) for DSpace 6.4 (DS-4574) - His changes reminded me that we can perhaps switch back to using this pooling instead of Tomcat 7's JDBC pooling via JNDI - Tomcat 8 has DBCP2 built in, but we are stuck on Tomcat 7 for now - Looking into the database issues we had last month on 2021-06-23 - 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: ```console # for num in {10..26}; do echo "2021-06-$num"; zcat /var/log/nginx/access.log.*.gz /var/log/nginx/library-access.log.*.gz | grep "$num/Jun/2021" | awk '{print $1}' | sort | uniq | wc -l; done 2021-06-10 10693 2021-06-11 10587 2021-06-12 7958 2021-06-13 7681 2021-06-14 12639 2021-06-15 15388 2021-06-16 12245 2021-06-17 11187 2021-06-18 9684 2021-06-19 7835 2021-06-20 7198 2021-06-21 10380 2021-06-22 10255 2021-06-23 15878 2021-06-24 9963 2021-06-25 9439 2021-06-26 7930 ``` - Similarly, the number of connections to the REST API was around the average for the recent weeks before: ```console # for num in {10..26}; do echo "2021-06-$num"; zcat /var/log/nginx/rest.*.gz | grep "$num/Jun/2021" | awk '{print $1}' | sort | uniq | wc -l; done 2021-06-10 1183 2021-06-11 1074 2021-06-12 911 2021-06-13 892 2021-06-14 1320 2021-06-15 1257 2021-06-16 1208 2021-06-17 1119 2021-06-18 965 2021-06-19 985 2021-06-20 854 2021-06-21 1098 2021-06-22 1028 2021-06-23 1375 2021-06-24 1135 2021-06-25 969 2021-06-26 904 ``` - According to goaccess, the traffic spike started at 2AM (remember that the first "Pool empty" error in dspace.log was at 4:01AM): ```console # zcat /var/log/nginx/access.log.1[45].gz /var/log/nginx/library-access.log.1[45].gz | grep -E '23/Jun/2021' | goaccess --log-format=COMBINED - ``` - Moayad sent a fix for the add missing items plugins issue ([#107](https://github.com/ilri/OpenRXV/pull/107)) - It works MUCH faster because it correctly identifies the missing handles in each repository - Also it adds better debug messages to the api logs ## 2021-07-08 - Atmire plans to debug the database connection issues on CGSpace (linode18) today so they asked me to make the REST API inaccessible for today and tomorrow - I adjusted nginx to give an HTTP 403 as well as a an error message to contact me ## 2021-07-11 - Start an indexing on AReS ## 2021-07-17 - I'm in Cyprus mostly offline, but I noticed that CGSpace was down - I checked and there was a blank white page with HTTP 200 - There are thousands of locks in PostgreSQL: ```console postgres@linode18:~$ psql -c 'SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;' | wc -l 2302 postgres@linode18:~$ psql -c 'SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;' | wc -l 2564 postgres@linode18:~$ psql -c 'SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;' | wc -l 2530 ``` - The locks are held by XMLUI, not REST API or OAI: ```console postgres@linode18:~$ psql -c 'SELECT * FROM pg_locks pl LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid;' | grep -o -E '(dspaceWeb|dspaceApi)' | sort | uniq -c | sort -n 57 dspaceApi 2671 dspaceWeb ``` - I ran all updates on the server (linode18) and restarted it, then DSpace came back up - 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 - Clone the `openrxv-items-temp` index on AReS and re-run all the plugins, but most of the "dspace_add_missing_items" tasks failed so I will just run a full re-harvest - The load on CGSpace is 45.00... the nginx access.log is going so fast I can't even read it - I see lots of IPs from AS206485 that are changing their user agents (Linux, Windows, macOS...) - This is finegroupservers.com aka "UGB - UGB Hosting OU" - I will get a list of their IP blocks from [ipinfo.app](https://asn.ipinfo.app/AS206485) and block them in nginx - There is another group of IPs that are owned by an ISP called "TrafficTransitSolution LLC" that does not have its own ASN unfortunately - "TrafficTransitSolution LLC" seems to be affiliated with AS206485 (UGB Hosting OU) anyways, but they sometimes use AS49453 Global Layer B.V.G also - I found a tool that lets you grep a file by CIDR, so I can use that to purge hits from Solr eventually: ```console # grepcidr 91.243.191.0/24 /var/log/nginx/access.log | awk '{print $1}' | sort | uniq -c | sort -n 32 91.243.191.124 33 91.243.191.129 33 91.243.191.200 34 91.243.191.115 34 91.243.191.154 34 91.243.191.234 34 91.243.191.56 35 91.243.191.187 35 91.243.191.91 36 91.243.191.58 37 91.243.191.209 39 91.243.191.119 39 91.243.191.144 39 91.243.191.55 40 91.243.191.112 40 91.243.191.182 40 91.243.191.57 40 91.243.191.98 41 91.243.191.106 44 91.243.191.79 45 91.243.191.151 46 91.243.191.103 56 91.243.191.172 ``` - I found a few people complaining about these Russian attacks too: - https://community.cloudflare.com/t/russian-ddos-completley-unmitigated-by-cloudflare/284578 - https://vklader.com/ddos-2020-may/ - According to AbuseIPDB.com and whois data provided by the asn tool, I see these organizations, networks, and ISPs all seem to be related: - Sharktech - LIR LLC / lir.am - TrafficTransitSolution LLC / traffictransitsolution.us - Fine Group Servers Solutions LLC / finegroupservers.com - UGB - Bulgakov Alexey Yurievich - Dmitry Vorozhtsov / fitz-isp.uk / UGB - Auction LLC / dauction.ru / UGB / traffictransitsolution.us - Alax LLC / alaxona.com / finegroupservers.com - Sysoev Aleksey Anatolevich / jobbuzzactiv.com / traffictransitsolution.us - Bulgakov Alexey Yurievich / UGB / blockchainnetworksolutions.co.uk / info@finegroupservers.com - UAB Rakrejus - I looked in the nginx log and copied a few IP addresses that were suspicious - First I looked them up in AbuseIPDB.com to get the ISP name and website - Then I looked them up with the [asn](https://github.com/nitefood/asn) tool, ie: ```console $ ./asn -n 45.80.217.235 ╭──────────────────────────────╮ │ ASN lookup for 45.80.217.235 │ ╰──────────────────────────────╯ 45.80.217.235 ┌PTR - ├ASN 46844 (ST-BGP, US) ├ORG Sharktech ├NET 45.80.217.0/24 (TrafficTransitSolutionNet) ├ABU info@traffictransitsolution.us ├ROA ✓ VALID (1 ROA found) ├TYP Proxy host Hosting/DC ├GEO Los Angeles, California (US) └REP ✓ NONE ``` - Slowly slowly I manually built up a list of the IPs, ISP names, and network blocks, for example: ```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) ``` - I found a better way to get the ASNs using my `resolve-addresses-geoip2.py` script - First, get a list of all IPs making requests to nginx today: ```console # grep -v -E "(mahider|Googlebot|Turnitin|Grammarly|Unpaywall|UptimeRobot|bot)" /var/log/nginx/access.log | awk '{print $1}' | sort | uniq > /tmp/ips-sorted.txt # wc -l /tmp/ips-sorted.txt 10776 /tmp/ips-sorted.txt ``` - Then resolve them all: ```console: $ ./ilri/resolve-addresses-geoip2.py -i /tmp/ips-sorted.txt -o /tmp/out.csv ``` - Then get the top 10 organizations and top ten ASNs: ```console $ csvcut -c 2 /tmp/out.csv | sed 1d | sort | uniq -c | sort -n | tail -n 10 213 AMAZON-AES 218 ASN-QUADRANET-GLOBAL 246 Silverstar Invest Limited 347 Ethiopian Telecommunication Corporation 475 DEDIPATH-LLC 504 AS-COLOCROSSING 598 UAB Rakrejus 814 UGB Hosting OU 1010 ST-BGP 1757 Global Layer B.V. $ csvcut -c 3 /tmp/out.csv | sed 1d | sort | uniq -c | sort -n | tail -n 10 213 14618 218 8100 246 35624 347 24757 475 35913 504 36352 598 62282 814 206485 1010 46844 1757 49453 ``` - I will download blocklists for all these except Ethiopian Telecom, Quadranet, and Amazon, though I'm concerned about Global Layer because it's a huge ASN that seems to have legit hosts too...? ```console $ wget https://asn.ipinfo.app/api/text/nginx/AS49453 $ wget https://asn.ipinfo.app/api/text/nginx/AS46844 $ wget https://asn.ipinfo.app/api/text/nginx/AS206485 $ wget https://asn.ipinfo.app/api/text/nginx/AS62282 $ wget https://asn.ipinfo.app/api/text/nginx/AS36352 $ wget https://asn.ipinfo.app/api/text/nginx/AS35624 $ cat AS* | sort | uniq > /tmp/abusive-networks.txt $ wc -l /tmp/abusive-networks.txt 2276 /tmp/abusive-networks.txt ``` - Combining with my existing rules and filtering uniques: ```console $ cat roles/dspace/templates/nginx/abusive-networks.conf.j2 /tmp/abusive-networks.txt | grep deny | sort | uniq | wc -l 2298 ``` - [According to Scamalytics all these are high risk ISPs](https://scamalytics.com/ip/isp/2021-06) (as recently as 2021-06) so I will just keep blocking them - 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... sigh - The next thing I need to do is purge all the IPs from Solr using grepcidr... ## 2021-07-18 - 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 - 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 ```console $ sudo zcat --force /var/log/nginx/access.log /var/log/nginx/access.log.1 /var/log/nginx/access.log.2 | grep -E " (200|499) " | awk '{print $1}' | sort | uniq > /tmp/all-ips.txt $ ./ilri/resolve-addresses-geoip2.py -i /tmp/all-ips.txt -o /tmp/all-ips-out.csv $ csvgrep -c asn -r '^(206485|35624|36352|46844|49453|62282)$' /tmp/all-ips-out.csv | csvcut -c ip | sed 1d | sort | uniq > /tmp/all-ips-to-block.txt $ wc -l /tmp/all-ips-to-block.txt 5095 /tmp/all-ips-to-block.txt ``` - Then I added them to the normal ipset we are already using with firewalld - I will check again in a few hours and ban more - I decided to extract the networks from the GeoIP database with `resolve-addresses-geoip2.py` so I can block them more efficiently than using the 5,000 IPs in an ipset: ```console $ csvgrep -c asn -r '^(206485|35624|36352|46844|49453|62282)$' /tmp/all-ips-out.csv | csvcut -c network | sed 1d | sort | uniq > /tmp/all-networks-to-block.txt $ grep deny roles/dspace/templates/nginx/abusive-networks.conf.j2 | sort | uniq | wc -l 2354 ``` - Combined with the previous networks this brings about 200 more for a total of 2,354 networks - 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 [Spamhaus's DROP and EDROP lists](https://www.spamhaus.org/drop/), for example) - Then I got a list of all the 5,095 IPs from above and used `check-spider-ip-hits.sh` to purge them from Solr: ```console $ ilri/check-spider-ip-hits.sh -f /tmp/all-ips-to-block.txt -p ... Total number of bot hits purged: 197116 ``` - 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 ## 2021-07-20 - Looking again at the IPs making connections to CGSpace over the last few days from these seven ASNs, it's much higher than I noticed yesterday: ```console $ csvgrep -c asn -r '^(49453|46844|206485|62282|36352|35913|35624)$' /tmp/out.csv | csvcut -c ip | sed 1d | sort | uniq | wc -l 5643 ``` - I purged 27,000 more hits from the Solr stats using this new list of IPs with my `check-spider-ip-hits.sh` script - 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! ```console $ sudo zcat --force /var/log/nginx/access.log.27.gz /var/log/nginx/access.log.28.gz | grep -E " (200|499) " | grep -v -E "(mahider|Googlebot|Turnitin|Grammarly|Unpaywall|UptimeRobot|bot)" | awk '{print $1}' | sort | uniq > /tmp/all-ips-june-23.txt $ ./ilri/resolve-addresses-geoip2.py -i /tmp/all-ips-june-23.txt -o /tmp/out.csv $ csvcut -c 2,4 /tmp/out.csv | sed 1d | sort | uniq -c | sort -n | tail -n 15 265 GOOGLE,15169 277 Silverstar Invest Limited,35624 280 FACEBOOK,32934 288 SAFARICOM-LIMITED,33771 399 AMAZON-AES,14618 427 MICROSOFT-CORP-MSN-AS-BLOCK,8075 455 Opera Software AS,39832 481 MTN NIGERIA Communication limited,29465 502 DEDIPATH-LLC,35913 506 AS-COLOCROSSING,36352 602 UAB Rakrejus,62282 822 ST-BGP,46844 874 Ethiopian Telecommunication Corporation,24757 912 UGB Hosting OU,206485 1607 Global Layer B.V.,49453 ``` - Again it was over 5,000 IPs: ```console $ csvgrep -c asn -r '^(49453|46844|206485|62282|36352|35913|35624)$' /tmp/out.csv | csvcut -c ip | sed 1d | sort | uniq | wc -l 5228 ``` - Interestingly, it seems these are five thousand *different* IP addresses than the attack from last weekend, as there are over 10,000 unique ones if I combine them! ```console $ cat /tmp/ips-june23.txt /tmp/ips-jul16.txt | sort | uniq | wc -l 10458 ``` - I purged all the (26,000) hits from these new IP addresses from Solr as well - Looking back at my notes for the 2019-05 attack I see that I had already identified most of these network providers (!)... - 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! - I saw it on the [Scamalytics 2021-06](https://scamalytics.com/ip/isp/2021-06) list anyways, so at this point I have no doubt - Adding QuadraNet brings the total networks seen during these two attacks to 262, and the number of unique IPs to 10900: ```console # 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 " (200|499) " | grep -v -E "(mahider|Googlebot|Turnitin|Grammarly|Unpaywall|UptimeRobot|bot)" | awk '{print $1}' | sort | uniq > /tmp/ddos-ips.txt # wc -l /tmp/ddos-ips.txt 54002 /tmp/ddos-ips.txt $ ./ilri/resolve-addresses-geoip2.py -i /tmp/ddos-ips.txt -o /tmp/ddos-ips.csv $ csvgrep -c asn -r '^(49453|46844|206485|62282|36352|35913|35624|8100)$' /tmp/ddos-ips.csv | csvcut -c ip | sed 1d | sort | uniq > /tmp/ddos-ips-to-purge.txt $ wc -l /tmp/ddos-ips-to-purge.txt 10900 /tmp/ddos-ips-to-purge.txt $ csvgrep -c asn -r '^(49453|46844|206485|62282|36352|35913|35624|8100)$' /tmp/ddos-ips.csv | csvcut -c network | sed 1d | sort | uniq > /tmp/ddos-networks-to-block.txt $ wc -l /tmp/ddos-networks-to-block.txt 262 /tmp/ddos-networks-to-block.txt ``` - The new total number of networks to block, including the network prefixes for these ASNs downloaded from asn.ipinfo.app, is 4,007: ```console $ wget https://asn.ipinfo.app/api/text/nginx/AS49453 \ https://asn.ipinfo.app/api/text/nginx/AS46844 \ https://asn.ipinfo.app/api/text/nginx/AS206485 \ https://asn.ipinfo.app/api/text/nginx/AS62282 \ https://asn.ipinfo.app/api/text/nginx/AS36352 \ https://asn.ipinfo.app/api/text/nginx/AS35913 \ https://asn.ipinfo.app/api/text/nginx/AS35624 \ https://asn.ipinfo.app/api/text/nginx/AS8100 $ cat AS* /tmp/ddos-networks-to-block.txt | sed -e '/^$/d' -e '/^#/d' -e '/^{/d' -e 's/deny //' -e 's/;//' | sort | uniq | wc -l 4007 ``` - 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 ## 2021-07-22 - Udana emailed to say that the link to the iwmi.csv export isn't working - I looked and both the nginx config and systemd service unit were using invalid paths... - I'm not sure why it had been working for so long until now! - Maria Garruccio asked if we can move the "Context" menu up to the top of the right-hand sidebar navigation menu - The last time we changed this was in 2020 (XMLUI's `Navigation.java`), and I think it makes a lot of sense so I moved it up, under the account block: ![CGSpace XMLUI navigation](/cgspace-notes/2021/07/context-navigation-menu.png)