Maybe this is what I've been glimpsing: cat /var/log/apache2/error.log.1 |more gives
... snippage of many lines ... to reach the last few groups of data (line feeds added between groups for clarity):
[Sat Sep 12 10:50:42.495415 2015] [core:notice] [pid 2556:tid 140426192762752] AH00094: Command line: '/usr/sbin/apache2' [Sat Sep 12 11:28:09.144176 2015] [mpm_event:notice] [pid 2556:tid 140426192762752] AH00491: caught SIGTERM, shutting down [Sat Sep 12 17:47:35.637827 2015] [mpm_event:notice] [pid 2184:tid 140615815001984] AH00489: Apache/2.4.7 (Trisquel_GNU/Linux) configured -- resuming normal operations
[Sat Sep 12 17:47:35.648909 2015] [core:notice] [pid 2184:tid 140615815001984] AH00094: Command line: '/usr/sbin/apache2' [Sat Sep 12 18:04:44.925573 2015] [mpm_event:notice] [pid 2184:tid 140615815001984] AH00491: caught SIGTERM, shutting down [Sun Sep 13 07:25:47.380276 2015] [mpm_event:notice] [pid 2167:tid 140170334656384] AH00489: Apache/2.4.7 (Trisquel_GNU/Linux) configured -- resuming normal operations
[Sun Sep 13 07:25:47.388692 2015] [core:notice] [pid 2167:tid 140170334656384] AH00094: Command line: '/usr/sbin/apache2' [Sun Sep 13 07:32:40.636163 2015] [mpm_event:notice] [pid 2167:tid 140170334656384] AH00493: SIGUSR1 received. Doing graceful restart AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1. Set the 'ServerName' directive globally to suppress this message
Those last two pairs are different from each other. They are also brief, in contrast to the verbose logs found in the many other places to which I've been directed.
Why is apache2 running and should I care ?
