unexpected problem of bind-8.2.2-p7

[Len Conrad]

>I recently upgrated a dns server in a solaris2.6 machine from 
>bind-8.2.2-p3 to bind-8.2.2-p7.
>It appeared quite well for a few days. However, today afternoon, it 
>suddenly start hanging,
>dumping out the following messages continuously.
>
>Meanwhile, nslookup gave the message "Server failed" on any query.
>After the named was restarted by "ndc restart", everything was recovered.
>
>I did not find any unusualness of the machine, nor could I detect any network
>problems. A neighboring DNS server was running well at the same time. Since
>it had never happened by the previous versions of bind, I just guess it may be
>a bug of the new version. Is there anybody who had a similar experience?
>What is most likely the reason of the problem?

Looks like you lost db.cache, run this:

dig @a.root-servers . ns >/etc/namedb/db.cache

ndc reload

Len



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