How to fix bind hangs on generating rndc key

DNS After setting up a DNS server, starting the named service may hang at Generating /etc/rndc.key:, as shown below:

[root@zm named]# /etc/init.d/named restart
Stopping named:                                            [  OK  ]
Generating /etc/rndc.key:

Fixing the problem Generate rndc.key with:

[root@zm named]# rndc-confgen -a -r /dev/urandom

The output is: wrote key file “/etc/rndc.key” If using chroot, run:

[root@zm named]# rndc-confgen -a -r /dev/urandom -t /var/named/chroot

The output is:

wrote key file "/etc/rndc.key"
wrote key file "/var/named/chroot/etc/rndc.key"

After generating rndc.key, try starting named again.

[root@zm named]# /etc/init.d/named start
Starting named:                                            [  OK  ]