What does this line mean?

2025-04-18

These are from my error_log in

/var/log/httpd

Code:

[notice] Accept mutex: sysvsem (Default: sysvsem)

and what does

Code:

[Sat Feb  4 02:44:03 2006] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Sat Feb  4 02:44:03 2006] [notice] Accept mutex: sysvsem (Default: sysvsem)

mean???

and what is SIGTERM?

Code:

[Sat Feb  4 00:44:01 2006] [notice] caught SIGTERM, shutting down