[SunHELP] DNS reverse lookups

Lara Matthews lara.matthews at accesscomputing.co.uk
Wed Sep 7 09:20:44 CDT 2005


Hi Tim

Tim Gallagher wrote:
> What are the results if you use nslookup in debug mode?
> 
> If the mail server is a recent addition to the file, you did of course
> increment the serial number and HUP the daemon, correct?
> 

Here is the output, it looks fine to me but if I try a reverse lookup 
outside of my network I just get a fail.

Server:  accesscomputing.co.uk
Address:  213.128.229.177

;; res_nmkquery(QUERY, 179.229.128.213.in-addr.arpa, IN, PTR)
------------
Got answer:
     HEADER:
         opcode = QUERY, id = 62901, rcode = NOERROR
         header flags:  response, auth. answer, want recursion, 
recursion avail.
         questions = 1,  answers = 1,  authority records = 1, 
additional = 1

     QUESTIONS:
         179.229.128.213.in-addr.arpa, type = PTR, class = IN
     ANSWERS:
     ->  179.229.128.213.in-addr.arpa
         name = mailhost.accesscomputing.co.uk
         ttl = 86400 (1D)
     AUTHORITY RECORDS:
     ->  229.128.213.in-addr.arpa
         nameserver = ns.accesscomputing.co.uk
         ttl = 86400 (1D)
     ADDITIONAL RECORDS:
     ->  ns.accesscomputing.co.uk
         internet address = 213.128.229.177
         ttl = 86400 (1D)

------------
Name:    mailhost.accesscomputing.co.uk
Address:  213.128.229.179

Yes incremented number and HUP'd service.  I remembered - just.

Thanks

Lara

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