NotionCommotion Posted September 9, 2017 Share Posted September 9, 2017 On the bottom, [Warning] IP address '209.126.136.5' could not be resolved: Name or service not known is displayed. https://www.abuseipdb.com/whois/209.126.136.5 shows the following: ISP QuadMetrics Usage Type Data Center/Web Hosting/Transit Domain Name cari.net Country United States City San Diego, California My server is hosted by 1&1. I can find no relationship between 1&1, QuadMetrics, and cari.net. Why might MariaDB display this warning and this specific IP? [michael@devserver ~]$ sudo systemctl status mysqld ● mariadb.service - MariaDB database server Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled) Drop-In: /etc/systemd/system/mariadb.service.d └─migrated-from-my.cnf-settings.conf Active: active (running) since Sat 2017-09-09 14:50:22 UTC; 2h 5min ago Process: 55415 ExecStartPost=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS) Process: 55371 ExecStartPre=/bin/sh -c [ ! -e /usr/bin/galera_recovery ] && VAR= || VAR=`/usr/bin/galera_recovery`; [ $? -eq 0 ] && systemctl set-environment _WSREP_START_POSITION=$VAR || exit 1 (code=exited, status=0/SUCCESS) Process: 55369 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS) Main PID: 55383 (mysqld) Status: "Taking your SQL requests now..." CGroup: /system.slice/mariadb.service └─55383 /usr/sbin/mysqld Sep 09 14:50:22 myip.com mysqld[55383]: 2017-09-09 14:50:22 140611860559616 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool Sep 09 14:50:22 myip.com mysqld[55383]: 2017-09-09 14:50:22 140613201893504 [Note] Plugin 'FEEDBACK' is disabled. Sep 09 14:50:22 myip.com mysqld[55383]: 2017-09-09 14:50:22 140613201893504 [Note] Server socket created on IP: '::'. Sep 09 14:50:22 myip.com mysqld[55383]: 2017-09-09 14:50:22 140613201893504 [Note] Reading of all Master_info entries succeded Sep 09 14:50:22 myip.com mysqld[55383]: 2017-09-09 14:50:22 140613201893504 [Note] Added new Master_info '' to hash table Sep 09 14:50:22 myip.com mysqld[55383]: 2017-09-09 14:50:22 140613201893504 [Note] /usr/sbin/mysqld: ready for connections. Sep 09 14:50:22 myip.com mysqld[55383]: Version: '10.2.7-MariaDB' socket: '/var/lib/mysql/mysql.sock' port: 3306 MariaDB Server Sep 09 14:50:22 myip.com systemd[1]: Started MariaDB database server. Sep 09 14:50:22 myip.com mysqld[55383]: 2017-09-09 14:50:22 140611860559616 [Note] InnoDB: Buffer pool(s) load completed at 170909 14:50:22 Sep 09 15:44:06 myip.com mysqld[55383]: 2017-09-09 15:44:06 140613072492288 [Warning] IP address '209.126.136.5' could not be resolved: Name or service not known [michael@devserver ~]$ Quote Link to comment https://forums.phpfreaks.com/topic/304927-cant-resolve-ip-and-unknown-nameservice/ Share on other sites More sharing options...
requinix Posted September 9, 2017 Share Posted September 9, 2017 Is port 3306 open to the world? Maybe someone tried to connect. Quote Link to comment https://forums.phpfreaks.com/topic/304927-cant-resolve-ip-and-unknown-nameservice/#findComment-1551052 Share on other sites More sharing options...
NotionCommotion Posted September 9, 2017 Author Share Posted September 9, 2017 Is port 3306 open to the world? Maybe someone tried to connect. Yeah it was. Since closed. Before closing, I restarted mysql and it was still connected. Would that make any sense? Quote Link to comment https://forums.phpfreaks.com/topic/304927-cant-resolve-ip-and-unknown-nameservice/#findComment-1551056 Share on other sites More sharing options...
requinix Posted September 9, 2017 Share Posted September 9, 2017 What was connected? Quote Link to comment https://forums.phpfreaks.com/topic/304927-cant-resolve-ip-and-unknown-nameservice/#findComment-1551057 Share on other sites More sharing options...
NotionCommotion Posted September 10, 2017 Author Share Posted September 10, 2017 Maybe/probably not connected but warning still displayed. Quote Link to comment https://forums.phpfreaks.com/topic/304927-cant-resolve-ip-and-unknown-nameservice/#findComment-1551069 Share on other sites More sharing options...
requinix Posted September 10, 2017 Share Posted September 10, 2017 Yeah it was. Since closed. Before closing, I restarted mysql and it was still connected. Would that make any sense? ^ What?If you're talking about the message in the log, well yeah that's not going to disappear. What matters is whether any more of them appear. Quote Link to comment https://forums.phpfreaks.com/topic/304927-cant-resolve-ip-and-unknown-nameservice/#findComment-1551072 Share on other sites More sharing options...
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