Ada keanehan di nsd, lakukan 'yum downgarde nsd; yum update nsd; sh /script/restart-dns'.
[root@server ~]# yum downgarde nsd; yum update nsd; sh /script/restart-dns
Loaded plugins: fastestmirror, priorities, protectbase, replace
No such command: downgarde. Please use /usr/bin/yum --help
Loaded plugins: fastestmirror, priorities, protectbase, replace
Loading mirror speeds from cached hostfile
* base: mirrors.easynews.com
* extras: mirrors.easynews.com
* mratwork-epel: download.fedoraproject.org
* mratwork-ius-stable: dfw.mirror.rackspace.com
* updates: mirror.keystealth.org
0 packages excluded due to repository protections
Setting up Update Process
No Packages marked for Update
Stopping nsd: nsd is not running
[FAILED]
Starting nsd: [FAILED]