Let us go through the Postfix terminating on signal 15 with the assistance of our Server management support services at Bobcares.

What is Signal 15 in Postfix?

SIGTERM is Signal 15. (see “kill -l” for a complete list). Most applications are put into termination in this manner and it is considered typical behavior. This signifies that the system has sent a SIGTERM to the processes. This is normally done at the request of another process (through kill()), but it can also be done by the process itself (by raise()). This signal requests that the process or system be terminated in a timely manner.

2022-10-25T10:00:01.313398+02:00 SERVER postfix/master[24801]:


terminating on signal 15

Postfix terminating on signal 15

Signal 15 is SIGTERM, which stands for a typical terminate signal. This usually signifies that we stopped the service, such as systemctl stop postfix. Whether that is not the case, the next step is likely to obtain postfix logs, as well as systemd messages from systemctl/journalctl, to see if they include any additional information.

Troubleshoot

Here are a few tips to troubleshoot the postfix terminating on signal 15 issue:

• Firstly, check to see if we have configured the monitor to restart the postfix service.
• After that or check and make sure that the construction or configurations of the postfix is accurate.
• Check to see if a reboot or something like logrotate occurred at that time. Check the crontab to determine if this is the case, or use the command:

  last reboot

• We can examine the startup script to discover the launching and stopping of the postfix for postfix terminating on signal 15. management.
• Check to see if the system and other system suppliers support Postfix.
• If the swap setting is causing the problem, check it. If affirmative, change the swap parameter value.
• Check to see if it’s the kernel’s OOM killer or postfix itself that’s causing it to crash.
• Examine the server’s cronjobs settings

This is the final step in troubleshooting and management of the issue.

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Conclusion

To conclude we have now learned about the postfix terminating on signal 15 and the effective troubleshooting methods to avoid the error with the support of our Bobcares Server management support services.