I have my server setup as a "slave" in a trust relationship with another server.

when I restart 'named', I find the following errors in '/var/log/messages':


zone ensarg.com.ar/IN: refresh: failure trying master 69.56.160.18#53: operation canceled


zone casinosdorado.com/IN: refresh: unexpected rcode (SERVFAIL) from master 69.56.160.18#53

lame server resolving 'rx-reminder.net' (in 'rx-reminder.NET'?): 67.129.190.170#53

zone abilityschool.net/IN: refresh: failure trying master 69.56.160.18#53: timed out

(and of course many zones which loaded fine)

What do I do about the errors - which sites, I think don't load - where do I go about fixing these errors?

(using WHM 8.4)