I have problem with "caught SIGTERM" of apache

[AlessioD]

I dont understand because every day.. too time every day the apache go down with SIGTERM errror, you can see errror_log:

[Sun Jan 09 10:28:00 2011] [notice] Digest: generating secret for digest authentication ...
[Sun Jan 09 10:28:00 2011] [notice] Digest: done
[Sun Jan 09 10:28:00 2011] [notice] mod_bw : Memory Allocated 0 bytes (each conf takes 32 bytes)
[Sun Jan 09 10:28:00 2011] [notice] mod_bw : Version 0.8 - Initialized [0 Confs]
[Sun Jan 09 10:28:00 2011] [notice] mod_python: Creating 4 session mutexes based on 512 max processes and 0 max threads.
[Sun Jan 09 10:28:00 2011] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!?
[Sun Jan 09 10:28:00 2011] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!?
[Sun Jan 09 10:28:00 2011] [warn] Init: (XXXXXXXXX.com:443) You configured HTTP(80) on the standard HTTPS(443) port!
[Sun Jan 09 10:28:00 2011] [warn] Init: (XXXXX.it:443) You configured HTTP(80) on the standard HTTPS(443) port!
[Sun Jan 09 10:28:00 2011] [warn] Init: SSL server IP/port conflict: XXXXXXX.it:443 (/var/www/vhosts/XXXXX.it/conf/httpd.include:12) vs. horde.webmail:443 (/etc/httpd/conf.d/zzz_horde_vhost.conf:41)
[Sun Jan 09 10:28:00 2011] [warn] Init: SSL server IP/port conflict: default-188-138-32-176:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:78) vs. horde.webmail:443 (/etc/httpd/conf.d/zzz_horde_vhost.conf:41)
[Sun Jan 09 10:28:00 2011] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!!
[Sun Jan 09 10:28:00 2011] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations
[Sun Jan 09 11:00:16 2011] [error] [client 212.247.70.106] File does not exist: /var/www/vhosts/default/htdocs/webdav
[Sun Jan 09 12:09:43 2011] [error] [client 216.24.196.97] File does not exist: /var/www/vhosts/default/htdocs/webdav
[Sun Jan 09 12:25:51 2011] [error] [client 88.231.20.33] script '/var/www/vhosts/default/htdocs/index.php' not found or unable to stat
[Sun Jan 09 13:47:26 2011] [error] [client 178.77.75.166] Invalid URI in request GET  HTTP/1.1
[Sun Jan 09 13:47:26 2011] [error] [client 178.77.75.166] Invalid URI in request GET  HTTP/1.1
[Sun Jan 09 14:42:52 2011] [error] [client 118.129.166.97] Invalid URI in request GET HTTP/1.1 HTTP/1.1
[Sun Jan 09 14:42:56 2011] [error] [client 118.129.166.97] File does not exist: /var/www/vhosts/default/htdocs/phpMyAdmin
[Sun Jan 09 15:23:50 2011] [error] [client 109.169.67.153] File does not exist: /var/www/vhosts/default/htdocs/webdav
[Sun Jan 09 17:13:33 2011] [error] [client 91.212.12.60] File does not exist: /var/www/vhosts/default/httpsdocs/robots.txt
[Sun Jan 09 18:58:55 2011] [error] [client 109.230.251.25] File does not exist: /var/www/vhosts/default/htdocs/fastenv
[Sun Jan 09 19:51:04 2011] [error] [client 50.22.41.234] File does not exist: /var/www/vhosts/default/htdocs/webdav
[Sun Jan 09 20:44:02 2011] [error] [client 77.92.150.62] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind:)
[Sun Jan 09 21:25:49 2011] [error] [client 212.76.131.235] File does not exist: /var/www/vhosts/default/htdocs/webdav
[Sun Jan 09 22:02:56 2011] [notice] caught SIGTERM, shutting down

 

[IgorG]

Is it standalone Plesk server or Plesk installed to Virtuozzo VPS?