3
votes
3answers
181 views

huge slowdown in network of 40 nodes when local DNS is up

We have a LAN with ~40 workstations (mostly Windows) and a couple of servers. All of them use an internal DNS (196.168.0.4 running BIND 9.5.0-P2) and a gateway (192.168.0.1 running OpenBSD Packet ...
0
votes
3answers
231 views

How to verify DNS change is active

I have DNS service from a third party, which provides an webapp for changing the DNS. I changed the DNS settings to point one of the domains I control to our new IP, but it's been hours and there was ...
-1
votes
1answer
88 views

DNS oddities with different nameservers

My ISP's DNS servers are sometimes sketchy, so I use 4.2.2.1 and 8.8.8.8 respectively. The Layer 3 DNS server and Google's DNS server. Sometimes there will be a long delay in resolving, and if I ...
0
votes
1answer
261 views

Need troubleshooting advice for intermittent dns problems with requests on isp nameservers

I've been having some intermittent dns problems with a web server, where certain isp's dns servers don't have my hostnames in cache and fail to look them up. At the same time, queries to opendns for ...
1
vote
2answers
3k views

Windows Server 2003 DCDiag error message “delegation is broken for foo.com.foo.com on dns server”

It started as a simple diagnostic: dcdiag /c when it ran it gave me the following error from the DNS portion of the DCDIAG test delegation is broken for foo.com.foo.com on dns server on dns ...
0
votes
3answers
76 views

The network routes A.com and sub.A.com so differently

Route is based on IP, right? How does it possible to route my packets so differently? One is success, but another is not. # traceroute A.com traceroute to A.com (1.2.3.4), 30 hops max, 60 byte ...
2
votes
2answers
7k views

Can someone see why my DNS won't work? I followed everything in the tutorial, but won't work

If anyone can help me troubleshoot this, I would very much appreciate it!! The tests work. It's just that when I do the manual ping/nslookup test, nothing is working. By the way, I followed ...
2
votes
9answers
24k views

Can ping machine by IP but not by name [closed]

On my home network, connected by means of a LinkSYS WCG200 Wireless-G Cable Gateway and a Unicom switch I have several computers. One of these is an XP Home machine that I can ping by IP but not by ...