sendmail does NOT use secondary nameserver

base60 nobody at whitehouse.com
Thu Dec 1 02:15:00 UTC 2005


You probably want to create a caching DNS server on the system running
sendmail.

It's pretty well documented.  Check w/google.

Claus van de Vlierd wrote:
> Hello ,
> 
>   a) in case our primary nameserver works rather slowly
>      our "sendmail" does NOT automatically use  the secondary nameserver.
> 
>      BUT : in the mailer's  "/etc/resolv.conf"  there are both 
> IP-addresses of the prim. and sec. nameserver
>   (by the way : our browsers have no problems to switch to the sec. 
> nameserver in those cases) .
> 
>   b) can anyone give me "a helping hand" how to make sure that
>      "sendmail" uses for its DNS-queries on port 53 the sec. nameserver
>       in case our prim. nameserver fails ?!
>       (perhaps with some refined "route-statments" in the attached 
> Cisco-Router
> ?!
> 
>    c) thank your for any help !
> 
>      regards ,  Claus van de Vlierd
> 
> 



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