M
Matt
Guest
Hello,
I run a network of about 60 Windows 2003 servers. Each one runs a
local caching only DNS (Microsoft DNS). They are used for monitoring
web pages and each uses IE7 to load up web pages and verify the site
is working. Lately we have been experiencing an issue where IE7 will
no longer display websites.
The symptoms are:
IE7 will load
Enter URL
URL domain lookup fails
Tries to redirect to friendly search suggestions
Fails
Address bar shows "http:///"
No page is loaded
This problem is intermittent on various servers with various levels of
patching on different networks. None are associated with a domain or
have any AD requirements. To fix this problem, we often end up just
rebooting the server. There are some instances where just restarting
DNS Server service fixes it or restarting DNS Client and DNS Server
services fixes it, but this is not consistent.
All my research on this points to a trojan of some sort, but that
usually effects the box completely and doesn't fix itself after
reboot. In any case, I've scanned all the servers and formatted some
to try and remove that possibility. When the issue is happening, the
registry keys for url prefix and the classid for the prefixes look
normal. I'm at a loss as to what can cause this issue. Has anyone
experienced this before? Thank you.
I run a network of about 60 Windows 2003 servers. Each one runs a
local caching only DNS (Microsoft DNS). They are used for monitoring
web pages and each uses IE7 to load up web pages and verify the site
is working. Lately we have been experiencing an issue where IE7 will
no longer display websites.
The symptoms are:
IE7 will load
Enter URL
URL domain lookup fails
Tries to redirect to friendly search suggestions
Fails
Address bar shows "http:///"
No page is loaded
This problem is intermittent on various servers with various levels of
patching on different networks. None are associated with a domain or
have any AD requirements. To fix this problem, we often end up just
rebooting the server. There are some instances where just restarting
DNS Server service fixes it or restarting DNS Client and DNS Server
services fixes it, but this is not consistent.
All my research on this points to a trojan of some sort, but that
usually effects the box completely and doesn't fix itself after
reboot. In any case, I've scanned all the servers and formatted some
to try and remove that possibility. When the issue is happening, the
registry keys for url prefix and the classid for the prefixes look
normal. I'm at a loss as to what can cause this issue. Has anyone
experienced this before? Thank you.