SSH/Bash command to restart httpd?

[Chruser]

Well, it seems that my server went down, but it still responds to ping. I can't remember the command to restart the server via my ssh (bash) shell on top of my head though, so I could use some help with it as I can't find it.

[George L]

tried restarting apache with

/etc/rc.d/init.d/httpd stop
/etc/rc.d/init.d/httpd start

[Chruser]

/etc/rc.d/init.d/httpd: line 3: ulimit: open files: cannot modify limit: Operation not permitted

/etc/rc.d/init.d/httpd: line 4: ulimit: open files: cannot modify limit: Operation not permitted

/etc/rc.d/init.d/httpd: line 5: ulimit: open files: cannot modify limit: Operation not permitted

/etc/rc.d/init.d/httpd stop: httpd (pid 9109?) not running

I guess that didn't work. :/

[George L]

contact your host..

[NexDog]

Your server has RedHats openfiles limit and apache needs to be edited with a new ulimit.

Increase max open files from 8192 to 16384 in /etc/sysctl.conf.

1.Run sysctl -w fs.file-max=16384

2.Edit /etc/sysctl.conf. Add a new line with: fs.file-max=4096

3.Edit /usr/sbin/apachectl. Add a new line with: ulimit -n 4096

4.Edit /etc/rc.d/init.d/httpd. Under the start subroutine add a new line with: ulimit -n 4096

5.Restart apache: /etc/rc.d/init.d/httpd restart.

There are many things that can go wrong with such a modification. If apache still errors out upon restart, I'd suggest recompiling: Before recompilation change in __FD_SETSIZE value in /usr/include/bits/types.h to 16384:

#define __FD_SETSIZE 16384

wget Your_favourite_mirror/apache-1.3.28-x.x.x.src.rpm

rpm --rebuild apache-1.3.28-x.x.x.src.rpm

rpm -Uvh --force /usr/src/redhat/RPMS/i386/apache*

On Plesk we have to do:
cp /usr/sbin/psa-suexec /usr/sbin/suexec

service httpd restart (and cross fingers).