When DNS server is down ...

[Polaris]

Hi :

I have just noticed that while the DNS server (a Windows Server 2003, it's
the only DNS server for this domain, it's also an AD server) is down; there
are two machines (one XP and another W2k) can still "ping" each other by
name. I checked the "host" files for both and there is no entry there. The
WINS is not enabled in either of the machines. I just wondering where the
"ping" resolved the machine name and corresponding IPs for its target?

Thanks In Advance!
Polaris

 

[chriske911]

It happens that Polaris formulated :

Hi :

I have just noticed that while the DNS server (a Windows Server 2003, it's
the only DNS server for this domain, it's also an AD server) is down; there
are two machines (one XP and another W2k) can still "ping" each other by
name. I checked the "host" files for both and there is no entry there. The
WINS is not enabled in either of the machines. I just wondering where the
"ping" resolved the machine name and corresponding IPs for its target?

Thanks In Advance!
Polaris

maybe netbios is enabled on those machines
did you look at the arp cache and the dns cache?

grtz

 

[Polaris]

Hi: Thanks for your info. I checked, the ARP cache does not have any records
of machine names (arp -a). Where is DNS cache? Will it keep name/ip of other
machines?

 

[chriske911]

Polaris submitted this idea :

Hi: Thanks for your info. I checked, the ARP cache does not have any records
of machine names (arp -a). Where is DNS cache? Will it keep name/ip of other
machines?

ipconfig /displaydns

grtz