Wanted to enable FXP for an upload on the proftpd server.
URL:
Was receiving errors in the log files:
May 21 12:30:34 server proftpd[6498] localhost (hostname[111.111.143.131]): Refused PORT 222,222,333,11,17,43 (address mismatch)
May 21 12:30:36 server proftpd[6498] localhost (hostname[111.111.143.131]): SECURITY VIOLATION: Passive connection from 222.222.333.11 rejected.
Enabled the following in the global configuration file which worked after restart:
AllowForeignAddress on
Apache had crashed and when trying to restart it with service restart apache or /etc/init.d/apache restart the following error would result in the error_log file:
 (28)No space left on device: mod_rewrite: could not create rewrite_log_lock Configuration Failed
There weren’t any apache processes lingering around and the disk had plenty of space and inodes left. The following URL helped fix the problem, or, a reboot would have worked too:
URL:
This URL suggested the following commands to debug and fix:
ipcs -s | grep apache
ipcs -s | grep apache | perl -e ‘while (<STDIN>) { @a=split(/\s+/); print `ipcrm sem $a[1]`}’
Which worked for me. Also suggested the following for Ubuntu 8.04:
ipcs -s | grep www-data | sudo perl -alne ‘qx(ipcrm -s $F[1])’