All nameservers unresponsive when master is down
Sam Pointer
sam.pointer at hpdsoftware.com
Wed Apr 10 11:14:33 UTC 2002
My domain `hpdsc.com` has 2 "actual" nameservers which we present to the
world as 4 "logical" nameservers. The 2 boxes are multihomed and all 4
addresses are given as valid namesevers for the domain (we have 2 leased
lines and this removes a single point of failure).
My whois informations is:
Domain servers in listed order:
NS2.HPDSC.COM 212.158.99.195
NS3.HPDSC.COM 195.167.246.3
NS4.HPDSC.COM 195.167.246.4
NS1.HPDSC.COM 212.158.99.194 The like-typed nameservers
are actually the same nameserver on the same box (multihomed).
The relevant part of the Zone data is:
hpdsc.com. IN SOA ns1.hpdsc.com. dnsadmin.hpdsoftware.com. (
1018281163 ; Serial
7200 ; refresh (2 hour)
3600 ; retry (1 hours)
604800 ; expire (1 week)
1 ; neg. cache
)
...
hpdsc.com. NS ns1.hpdsc.com.
hpdsc.com. NS ns2.hpdsc.com.
hpdsc.com. NS ns3.hpdsc.com.
hpdsc.com. NS ns4.hpdsc.com.
...
ns1.hpdsc.com. IN A 212.158.99.194
ns2.hpdsc.com. IN A 212.158.99.195
ns3.hpdsc.com. IN A 195.167.246.3
ns4.hpdsc.com. IN A 195.167.246.4
However, if I stop BIND running on ns1 (which is also ns3 if referenced by
it's alternative IP address) then the whole Zone stops resolving. And I
can't for the life of me work out why. If you want to tell me to "FAQ off"
then please do.
Any help/pointers/soothing words of calm would be most appreciated: I'm
terrified on ns1/ns3 falling over! I'm running BIND9.
_________________________________________
Sam Pointer - HPD Software Ltd.
Email: sam.pointer at hpdsoftware.com
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