I don't know what's happening but sometimes (pretty often in these last day) if i try to open my website (that is hosted on a my dedicated server)
the site takes too much time to show up. Then the only solution to recover it is to restart apache with the classic debian command:
After that my website immediatly show up when I open it in my browser.
I have debian 64 bit with 4GB ram and a Core 2 Duo @ 2.33 GHz
Apache 2 settings are the follow:
Timeout 10 KeepAlive Off <IfModule mpm_prefork_module> StartServers 90 MinSpareServers 5 MaxSpareServers 20 ServerLimit 90 MaxClients 90 MaxRequestsPerChild 0 </IfModule>
Error.log shows nothing beside a
"[error] favicon.ico not found"
Just after the restart
top command is:
top - 17:53:43 up 129 days, 6:06, 1 user, load average: 0.18, 0.16, 0.18 Tasks: 207 total, 1 running, 206 sleeping, 0 stopped, 0 zombie Cpu(s): 12.4%us, 2.1%sy, 0.0%ni, 80.4%id, 4.0%wa, 0.0%hi, 1.2%si, 0.0%st Mem: 4040068k total, 3851432k used, 188636k free, 2037056k buffers Swap: 1051384k total, 1332k used, 1050052k free, 772836k cached
Please Help me. (and please don't ask me to install mod_status)
/var/log/messages and i found a lot of this meessage, Maybe this
is a DDOS attack?
Jan 29 18:31:31 ns354729 kernel: possible SYN flooding on port 80. Sending cookies.