apache error logs

[peman]

Hello,

I need to keep track of whats happening with our webserver. It has run smoothly one year now but this weekend suddenly all sites were down and also the FTP server. i looked in the syslog but couldnt see anything special. where should i look for errors?

i also noticed that the last apache error log are from April. strange?

host:/home/martin# ll /var/log/apache2/error.log*
-rw-r----- 1 root adm 0 2009-04-05 06:28 /var/log/apache2/error.log
-rw-r----- 1 root adm 257K 2009-04-03 07:41 /var/log/apache2/error.log.1
-rw-r----- 1 root adm 1,9K 2009-02-01 06:53 /var/log/apache2/error.log.10.gz
-rw-r----- 1 root adm 2,6K 2009-01-25 06:53 /var/log/apache2/error.log.11.gz
-rw-r----- 1 root adm 1,5K 2009-01-18 06:54 /var/log/apache2/error.log.12.gz