File hierarchy in cpanel

Apache

/usr/local/apache
+ bin- apache binaries are stored here – httpd, apachectl, apxs
+ conf – configuration files – httpd.conf
+ cgi-bin
+ domlogs – domain log files are stored here
+ htdocs
+ include – header files
+ libexec – shared object (.so) files are stored here – libphp4.so,mod_rewrite.so
+ logs – apache logs – access_log, error_log, suexec_log
+ man – apache manual pages
+ proxy -
+ icons -
Cpanel script to restart apache – /scripts/restartsrv_httpd
Start httpd with ssl – /etc/init.d/httpd startssl

DNS

Program: /usr/sbin/named
Init Script: /etc/rc.d/init.d/named
/etc/named.conf
db records:/var/named/
/var/log/messages

MYSQL

Program : /usr/bin/mysql
Init Script : /etc/rc.d/init.d/mysql
Conf : /etc/my.cnf, /root/.my.cnf
Data directory – /var/lib/mysql – Where all databases are stored.
Database naming convention – username_dbname (eg: john_sales)
Permissions on databases – drwx 2 mysql mysql
Socket file – /var/lib/mysql/mysql.sock, /tmp/ mysql.sock

FTP

Program :/usr/sbin/proftpd
Init Script :/etc/rc.d/init.d/proftpd
Conf: /etc/proftpd.conf
Log: /var/log/messages, /var/log/xferlog
FTP accounts file – /etc/proftpd/username

MAIL

Conf : /etc/exim.conf – exim main configuration file
/etc/localdomains – list of domains allowed to relay mail
Log : /var/log/exim_mainlog – incoming/outgoing mails are logged here
/var/log/exim_rejectlog – exim rejected mails are reported here
/var/log/exim_paniclog – exim errors are logged here
Mail queue: /var/spool/exim/input
Cpanel script to restart exim – /scripts/restartsrv_exim
Email forwarders and catchall address file – /etc/valiases/domainname.com
Email filters file – /etc/vfilters/domainname.com
POP user authentication file – /home/username/etc/domainname/passwd
catchall inbox – /home/username/mail/inbox
POP user inbox – /home/username/mail/domainname/popusername/inbox
POP user spambox – /home/username/mail/domainname/popusername/spam
Program : /usr/sbin/exim (suid – -rwsr-xr-x 1 root root )
Init Script: /etc/rc.d/init.d/exim