Kerberos - kadmin connection issue
by Alpha01
I was getting a communication error when trying to connect from a Kerberos client to the KDC, while I was still able to successfully be granted a ticket using kinit.
Error
[root@rubyninja etc]# kadmin -p kerberosadmin/[email protected]
Authenticating as principal kerberosadmin/[email protected] with password.
Password for kerberosadmin/[email protected]:
kadmin: Communication failure with server while initializing kadmin interface
Fix
It turns out that iptables was blocking access to kadmind on the Master KDC, of which I simply had to allow the TCP Port 749 to fix the issue.
iptables -A INPUT -p tcp -m tcp --dport 749 -j ACCEPT
kerberos iptables