J
Jerry Bogren
Network configured like this:
W2K dhcp server provides wins and dns data to client
machines at startup.
AD installed on domain controllers
multiple vlans ( hence WINS and NETBios)
DNS list consists of 6 servers ( 2 internal and 4
external)
Network sniffing shows the slow down is caused by a DNS
search for a server named SPECIAL. This appears to be a
NetBios Name Server (NBNS from the sniffer data)
It goes to each DNS server in the DNS List and searches
for this list of servers;
First DNS server (.ww.xx.yy.zz is the State's domain name
for us)
Special.ww.xx.yy.zz
Special.xx.yy.zz
Special.yy.zz
Special.zz
Goes on to repeat this at all 6 DNS servers.
If we shut off netbios - the search goes away.
Client machines are XP or W2k - both fully patched.
Any Ideas
W2K dhcp server provides wins and dns data to client
machines at startup.
AD installed on domain controllers
multiple vlans ( hence WINS and NETBios)
DNS list consists of 6 servers ( 2 internal and 4
external)
Network sniffing shows the slow down is caused by a DNS
search for a server named SPECIAL. This appears to be a
NetBios Name Server (NBNS from the sniffer data)
It goes to each DNS server in the DNS List and searches
for this list of servers;
First DNS server (.ww.xx.yy.zz is the State's domain name
for us)
Special.ww.xx.yy.zz
Special.xx.yy.zz
Special.yy.zz
Special.zz
Goes on to repeat this at all 6 DNS servers.
If we shut off netbios - the search goes away.
Client machines are XP or W2k - both fully patched.
Any Ideas