http://ndcservers.net/wiki/ Sat, 31 Jul 2010 17:54:43 -0700 FeedCreator 1.7.2-ppt DokuWiki http://ndcservers.net/wiki/lib/images/favicon.ico http://ndcservers.net/wiki/ http://ndcservers.net/wiki/cpanel/unable-to-edit-cronjob?rev=1279313815&do=diff Chances are the problem is that has lost it's suid privileges. To correct this run the following command as root via SSH or the console: casino en ligne # chmod 4755 /usr/bin/crontab cpanel, cron TierraTaplin cpanel cron Fri, 16 Jul 2010 13:56:55 -0700 http://ndcservers.net/wiki/server-administration/hardening-tcpip-syn-flood?rev=1277763621&do=diff Hardening your TCP/IP Stack Against SYN Floods Denial of service (DoS) attacks launch via SYN floods can be very problematic for servers that are not properly configured to handle them. Proper firewall filtering policies are certainly usually the first line of defense, however the Linux kernel can also be hardened against these types of attacks. This type of hardening is useful for SYN floods that attempt to overload a particular service with requests (such as http) as opposed to one that inte… Garrett Plasky guide shell security Mon, 28 Jun 2010 15:20:21 -0700 http://ndcservers.net/wiki/server-administration/imagick-class-error?rev=1277250288&do=diff ImageMagick [Imagick] PHP Class Broken or Fails to Install Some versions of CentOS (including the most recent 5.5) have an issue with a buggy 6.4.8 RPM version of ImageMagick. This version prevents the Imagick PHP class from working properly, and also prevents the extension from being installed via PECL. If you are using the Imagick PHP class on your site, you will see an error something like: Garrett Plasky administration apache centos cpanel php Tue, 22 Jun 2010 16:44:48 -0700 http://ndcservers.net/wiki/apache/building-php-with-mysql-on-centos-5-64bit?rev=1277248219&do=diff If you try to build PHP 5.x.x on a 64bit CentOS install you may get this error: checking for specified location of the MySQL UNIX socket... no checking for MySQL UNIX socket location... /var/lib/mysql/mysql.sock checking for mysql_close in -lmysqlclient... no checking for mysql_error in -lmysqlclient... no configure: error: mysql configure failed. Please check config.log for more information. Garrett Plasky apache centos how-to mysql php Tue, 22 Jun 2010 16:10:19 -0700 http://ndcservers.net/wiki/server-administration/redirect-non-www-to-www?rev=1277248012&do=diff Moved to the Apache category. Garrett Plasky server-administration Tue, 22 Jun 2010 16:06:52 -0700 http://ndcservers.net/wiki/apache/redirect-non-www-to-www?rev=1277247982&do=diff This is an example using the mod_rewrite Apache module to force all traffic to your site to www.yourodmain.com. This can be useful in an SSL context, as well as for SEO purposes. Create a .htaccess file in your webroot (public_html for cPanel servers) and add the following lines: Garrett Plasky apache how-to Tue, 22 Jun 2010 16:06:22 -0700