Friday, May 29, 2009

DHCP Server provided IP & DNS properly to clients, but later only DNS IP gets changing to someother IP

Problem: DHCP Server provided IP & DNS properly to clients, but later only DNS IP gets changing to someother IP

Solution:

1. Use a network Analyzer, DHCPfind tool,Network Analyzer Tool (WIRESHARK) & find out, is there any other DHCP servers exist in Network with that DNS IP.

2. Else it will be virus,
3. Verify the logs in DHCP Server too ( C:\WINDOWS\SYSTEM32\DHCP)

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