Server wide :
cd /etc/httpd/conf/
cp -p httpd.conf httpd.conf.bak
vi httpd.conf
uncomment AddHandler cgi-script .cgi
service httpd restart
or
1. create an .htaccess file in your cgi-bin directory, that file should have the following
AddType text/x-server-parsed-html .html
AddType application/x-httpd-cgi .cgi .pl
Make sure you upload it in ASCII format, not binary.
2 set the permissions on your scripts correctly.. usually to 755
Telnet to yourmailserver at port 25 and issue all the following commands:
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telnet hostname/ip 25
helo client.server.com
mail from: xxx@somedomain.com
rcpt to: yyy@somedomain.com
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If you are getting the error “554 : Relay access denied” then the server is not an open Relay
If not Just pass the command “DATA” sfter the recipient and then enter the message ending with a period ie : “.”
If you get the reply “SUCCESS Relay Accepted – final response code 550″
Then as you feared your server is subjected to open relay and if not enjoy………. It is not 
I hope your server is not open relay supporting, but if it is so, as it is a Cpanel Server you can stop it normally using the below scripts
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/scripts/fixrelayd
/etc/rc.d/init.d/antirelayd restart
service exim restart
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cd /opt
mkdir java
cd java
wget http://javadl.sun.com/webapps/download/AutoDL?BundleId=29210
or
wget http://javadl.sun.com/webapps/download/AutoDL?BundleId=29214
mv jre-6u13* jre-6u13-linux-i586.bin
chmod 755 jre-6u13-linux-i586.bin
./jre-6u13-linux-i586.bin
/opt/java/jre1.6.0_13/bin/java -version
Installing Ant:
cd /opt
wget http://www.gtlib.gatech.edu/pub/apache/ant/binaries/apache-ant-1.7.1-bin.tar.gz
tar -xzf apache-ant-1.7.1-bin.tar.gz
cd apache-ant-1.7.1
export ANT_HOME=/opt/apache-ant-1.7.1
export JAVA_HOME=/opt/java/jre1.6.0_13
export PATH=${PATH}:${ANT_HOME}/bin
echo “export ANT_HOME=/opt/apache-ant-1.7.1” >> /etc/profile
echo “export JAVA_HOME=/opt/java/jre1.6.0_13” >> /etc/profile
echo “export PATH=${PATH}:${ANT_HOME}/bin” >> /etc/profile
ln -s /opt/java/jre1.6.0_13/bin/java /etc/alternatives/java
ln -s /etc/alternatives/java /usr/bin/java
Then verify the installation by:
java -version
ant -version
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If you are getting the following error while executing :
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ant -version
Unable to locate tools.jar. Expected to find it in /opt/java/jre1.6.0_13/lib/tools.jar
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If you are getting “No space left on device: mod_rewrite: could not create rewrite_log_lock” while restarting apache, then please execute the following commands in shell prompt:
ipcs -s | grep nobody
for i in `ipcs -s | grep nobody | awk ‘{print $2}’`; do ipcrm -s $i; done
Reason: Apache user occupies large number of semaphore arrays.. The above script will remove the semaphore arrays by using ipcrm command
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