How to manage cpanel and WHM

In many VPS Hosting, the provider will provide cpanel and WHM. Which can be a good thing and help you a lot of things. But they can also use lots of your memory, then you don't have the resources to use other services.

Target Goal: Use 450MB memory

Shutdown cpanel
service cpanel stop

Shutdown WHM

Turn off all the services you don't need from cpanel, and make sure it didn't start in the next reboot:


root      1009  0.0  0.0 249084  1588 ?        Sl   23:39   0:00 /sbin/rsyslogd -i /var/run/syslogd.pid -c 5
named     1030  0.0  0.9 162892 18256 ?        Ssl  23:39   0:00 /usr/sbin/named -u named
dbus      1129  0.0  0.0  21404   884 ?        Ss   23:39   0:00 dbus-daemon --system
root      1158  0.0  0.0   4080   636 ?        Ss   23:39   0:00 /usr/sbin/acpid
nscd      1174  0.0  0.1 832936  3452 ?        Ssl  23:39   0:00 /usr/sbin/nscd
root      1194  0.0  0.0  64716  1224 ?        Ss   23:39   0:00 /usr/sbin/sshd
ntp       1202  0.0  0.0  25028  1696 ?        Ss   23:39   0:00 ntpd -u ntp:ntp -p /var/run/ntpd.pid -g
root      1215  0.0  0.0 106312  1412 ?        S    23:39   0:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/mysqld.pid
mysql     1537  0.0  2.5 662268 48548 ?        Sl   23:39   0:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/va
root      1587  0.0  0.0 108428   644 ?        Ss   23:39   0:00 /usr/sbin/abrtd
root      1595  0.0  0.0 108204   836 ?        Ss   23:39   0:00 abrt-dump-oops -d /var/spool/abrt -rwx /var/log/messages
root      1606  0.0  0.0  17920   948 ?        Ss   23:39   0:00 /usr/sbin/dovecot
dovenull  1617  0.0  0.1  42208  2320 ?        S    23:39   0:00 dovecot/pop3-login
dovenull  1618  0.0  0.1  42212  2324 ?        S    23:39   0:00 dovecot/imap-login
dovecot   1619  0.0  0.0  13304   952 ?        S    23:39   0:00 dovecot/anvil
root      1620  0.0  0.0  13432  1108 ?        S    23:39   0:00 dovecot/log
dovenull  1622  0.0  0.1  42208  2324 ?        S    23:39   0:00 dovecot/pop3-login
dovenull  1623  0.0  0.1  42212  2320 ?        S    23:39   0:00 dovecot/imap-login
root      1624  0.0  0.0  14520  1880 ?        S    23:39   0:00 dovecot/config
dovecot   1625  0.0  0.0  29440  1764 ?        S    23:39   0:00 dovecot/auth
root      1626  0.0  0.2  72536  5308 ?        Ss   23:39   0:00 /usr/local/apache/bin/httpd -k start -DSSL
root      1633  0.0  0.1 137192  1992 ?        Ss   23:39   0:00 pure-ftpd (SERVER)                                                                                                    
root      1635  0.0  0.0 136580  1828 ?        S    23:39   0:00 /usr/sbin/pure-authd -s /var/run/ftpd.sock -r /usr/local/cpanel/bin/pureauth
root      1643  0.0  0.0 115404  1004 ?        Ss   23:39   0:00 crond
root      1654  0.0  0.0  19860   464 ?        Ss   23:39   0:00 /usr/sbin/atd
nobody    1687  0.0  0.1  71076  2228 ?        S    23:39   0:00 /usr/local/apache/bin/httpd -k start -DSSL
root      1688  0.0  0.4  48992  8756 ?        S    23:39   0:00 /usr/local/cpanel/3rdparty/bin/perl /usr/local/cpanel/bin/leechprotect
root      1694  0.0  0.0  71076  1804 ?        S    23:39   0:00 /usr/local/apache/bin/httpd -k start -DSSL
nobody    1695  0.0  0.1  72252  1948 ?        S    23:39   0:00 /usr/local/apache/bin/httpd -k start -DSSL
nobody    1696  0.0  0.2 547868  5328 ?        Sl   23:39   0:00 /usr/local/apache/bin/httpd -k start -DSSL
nobody    1697  0.0  0.3 613404  6456 ?        Sl   23:39   0:00 /usr/local/apache/bin/httpd -k start -DSSL
nobody    1698  0.0  0.3 547868  6368 ?        Sl   23:39   0:00 /usr/local/apache/bin/httpd -k start -DSSL
root      1789  0.0  0.3  45260  6720 ?        S    23:39   0:00 cPhulkd - processor
root      1807  0.0  0.2  33124  5404 ?        S    23:39   0:00 queueprocd - wait to process a task
root      1815  0.0  0.7  96652 14364 ?        S    23:39   0:00 cpsrvd (SSL) - waiting for connections
root      1884  0.0  0.3  37404  7156 ?        S    23:39   0:00 tailwatchd
root      1896  0.0  0.1  27120  2992 ?        SN   23:39   0:00 cpanellogd - sleeping for logs
root      1930  0.0  0.0   4064   528 tty1     Ss+  23:39   0:00 /sbin/mingetty /dev/tty1
root      1932  0.0  0.0   4064   528 tty2     Ss+  23:39   0:00 /sbin/mingetty /dev/tty2
root      1934  0.0  0.0   4064   524 tty3     Ss+  23:39   0:00 /sbin/mingetty /dev/tty3
root      1936  0.0  0.0   4064   532 tty4     Ss+  23:39   0:00 /sbin/mingetty /dev/tty4
root      1937  0.0  0.0  10764   848 ?        S<   23:39   0:00 /sbin/udevd -d
root      1939  0.0  0.0   4064   528 tty5     Ss+  23:39   0:00 /sbin/mingetty /dev/tty5
root      1941  0.0  0.0   4064   528 tty6     Ss+  23:39   0:00 /sbin/mingetty /dev/tty6
root      1987  0.0  0.2 107164  4024 ?        Ss   23:40   0:00 sshd: root@pts/0
root      1992  0.0  0.0 106448  1688 pts/0    Ss   23:40   0:00 -bash
root      2129  0.0  0.0 108348  1068 pts/0    R+   23:52   0:00 ps aux