Recently while restarting DNS service on Cpanel VPS it shows following errors:

[root@support ~]# /etc/init.d/named start
Starting named: /usr/sbin/named: error while loading shared libraries: libdns.so.22: cannot open shared object file: No such file or directory
[FAILED]

[root@support ~]# /etc/init.d/named start
Starting named: /usr/sbin/named: error while loading shared libraries: libisc.so.11: cannot open shared object file: No such file or directory
[FAILED]

We have checked and found that the OS template [CentOS 5.3] has been update to [CentOS 5.4] due to will all the binaries of the VPS has been updated as well. For temporary work around I have copied the libdns.so and libisc.so to libdns.so.22 and libisc.so.11.

[root@support ~]# cd /usr/lib
[root@support lib]# cp libdns.so libdns.so.22
[root@support lib]# cp libisc.so libisc.so.11

After that we were able to restart named server

[root@support lib]# service named restart
Stopping named:                                            [FAILED]
Starting named:                                             [  OK  ]
[root@support lib]#