Certain packages are needed in order to install astersik properly. please run the below commands for installing the below packages uing yum.
rpm –import
http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-4 (Centos4)
rpm –import
http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-4 (Centos5)
yum -y install screen kernel-devel
yum -y install kernel-source bison openssl-devel mysql
yum -y install mysql-server mysql-devel gcc libtermcap
yum -y install libtermcap-devel newtnewt-devel zlib-devel
yum -y install ncurses-devel gcc-c++ compat-gcc-32
yum -y install compat-gcc-32-c++

Now create and setup the yum repositories for asterisk installation, I have found it to be an easy method of asterisk installtion using …

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mysql -u root db_name < file.sql
Dump a Database (with special characters):
mysqldump -Q –add-drop-table db_name > file.sql
Dump a Database, 4.0 compatible:
mysqldump –compatible=mysql40 –add-drop-table –quote-name db_name > file.sql
Dump Multiple Databases:
mysqldump -Q –add-drop-table –databases db_name1 db_name2 > file.sql
Restore Multiple Databases (must be done as root):
mysql -u root < file.sql
Log into MySQL prompt as the user (or root):
mysql -u username -p
Show Databases: (will only show databases the user has access to. Root has all.)
show databases;
Drop a …

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error 1)
cpanel is showing diskusage full
solution
#find / -user username -ls  >> used  to find the files that are owned by that user
#find / -user uid   -ls     >> used to find the files that are owned by the user by looking the uid. The uid can  found from/etc/passwd
error 2)
whm is not showing correct disk space
before running this Go to cPanel Update Config, and change config to auto update to last STABLE release and  /scripts/upcp –force
/scripts/fixquotas
/usr/local/cpanel/cpkeyclt –sync

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On a RedHat,Centos, fedora CPanel servers, here are the useful services:
bandmin
chkservd
cpanel
crond
exim
httpd
mysql
named
proftpd
CRON INFO:
Root crontab:
crontab -e
To edit a users cron jobs
crontab -u username -e
Replace username with the actual username of the client you want to edit.
/scripts/adddns Add a Dns Entry
/scripts/addfpmail Install Frontpage Mail Exts
/scripts/addservlets Add JavaServlets to an account (jsp plugin required)
/scripts/adduser Add a User
/scripts/admin Run WHM Lite
/scripts/apachelimits Add Rlimits (cpu and mem limits) to apache.
/scripts/dnstransfer Resync with a master DNS Server
/scripts/editquota Edit A User’s Quota
/scripts/finddev Search For Trojans in /dev
/scripts/findtrojans …

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