I have had a self sign certificate for a while and didn't like all the browser errors. I decided to install a trial version of comodo as described here http://www.howtoforge.com/forums/showthread.php?t=24168 and then rebooted apache. Now apache will not start mybox1:~# /etc/init.d/apache2 restart Forcing reload of web server (apache2)...httpd (pid 8721?) not running failed! This is what is in my apache error log [Sun Aug 23 17:58:07 2009] [error] an unknown filter was not added: PHP [Sun Aug 23 17:58:07 2009] [error] an unknown filter was not added: PHP [Sun Aug 23 17:58:43 2009] [error] an unknown filter was not added: PHP [Sun Aug 23 17:58:43 2009] [error] an unknown filter was not added: PHP [Sun Aug 23 17:58:55 2009] [error] an unknown filter was not added: PHP [Sun Aug 23 17:58:55 2009] [error] an unknown filter was not added: PHP [Sun Aug 23 17:58:55 2009] [error] an unknown filter was not added: PHP [Sun Aug 23 17:58:55 2009] [error] an unknown filter was not added: PHP [Sun Aug 23 17:59:05 2009] [error] an unknown filter was not added: PHP [Sun Aug 23 17:59:05 2009] [error] an unknown filter was not added: PHP When I remove the certificate from the control panel of ispconfig (uncheck the SSL box and save) then restart apache all is ok again shajazzi
