Monitoring
You can monitor nagios alerts in https://monitor.mayfirst.org
The bender irc daemon also copies nagios alerts to the #mayfirst irc channel.
How to handle Nagios alerts
This page is a list of alerts and the recommended actions you can take to address them.
List of alerts taken from /etc/nagios3/conf.d/services_nagios2.cfg
- HTTP
- edit
- HTTPS
- edit
- SSH
- edit
- SMTP
- edit
- Secure IMAP
- edit
- Secure POP
- edit
- Disk Space
- edit
- Upgrade
- edit
- Mail Status
-
This alert indicates that the postfix mail queue for the host has accumulated enough deferred messages to reach either a WARNING or CRITICAL threshold. The values for these threshholds are hardcoded into in the mf-monitor-mailq script
puppet/modules/mayfirst/files/monitor-utils/mf-monitor-mailq
but can be overridden by local environment variables. Evaluation: Using themf-mailq-summary
is a good place to start. The script will show a two column output with number of mails corresponding to a particular sending address. This will allow you to quickly determine whether the majority of accumulated mail is originating from one particular user, address or domain. If you can identify a particular address of interest try getting a sample of queue id numbers from that addressmailq | grep $somepattern | tail
. Use the queue id number to examine the headers and other detailspostcat -q $queueid
. - Status of critical services
- edit
- Monitor backup servers for backup failures
- edit
- Monitor all servers for backup errors
- edit
- Mail Injector Status
- edit
- Oom Killer Status
- edit
- Relayers Status
-
See email-deliverability , run
mf-check-relay-mail-users
on the indicated server to see who is being reported. - Blocklist Status
- See suggestions in wiki email-deliverability also see examples in ticket #13288
- MySQL error Status
- edit
- Check for high number of email abuse complaints
- Check for high number of email abuse complaints to a given IP. See the Mail abuse page.
- PHP
- edit
- Ensure Email goes to Inbox
- See the filter check page
- fedcam
- review the Fedcam web interface. See fedcam wiki
- sks-pool
- edit
- keys.mayfirst.org
- edit
- roundcube.mayfirst.org
- edit
- roundcube.dev.mayfirst.org
- edit
Creating new nagios monitors
https://support.mayfirst.org/wiki/how-to/servers/puppet/setup-nagios-monitor
Last modified
6 years ago
Last modified on Apr 13, 2018, 4:59:54 AM
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