UNIX for Dummies Questions & Answers

My boss use a MacBook and he encounter with DNS drop out and he cannot surf website for 1-2 mins. The DNS Service of my company is on UNIX server. I try to delete some unused IP of DNS Server in resolv.conf and dhcp.conf and I try to update root.hint file but The problem is not fixed.


Please Help me

I may not be able to solve this, but for the benefit of others please post:

Exact version of the Operating System on the MacBook and exact year and model of the MacBook? (There are known issues).
Whether the MacBook was running on battery or mains (It matters)?
Whether you are using a wired connection or a wireless connection?
Whether the MacBook works correctly somewhere else on another network?
Whether your MacBook is configured to use DHCP or Fixed IP? (It would be very unusual to be amending settings files manually on one of these computers).

If you are using snow leopard 10.6, I have seen some strange DNS behaviors with that OS.. Also resolv.conf is deprecated in 10.6, and now mdnsresolver is the daemon responsible for regular DNS too, not just Bonjour.

-I am not sure of the OS version because my boss don't have much time to let me look his MacProbook.
- main
- Wired
- Yes. It has a problem when he connect the Internet via the company network only
- DHCP

Hmm. It was a MacBook and now it is a MacProbook (whatever that is). Detail matters.

Known issues with these symptoms for a basic MacBook don't apply to MacBook Pro. We'd love to know what model of computer has the problem.

The broad symptoms suggest that this laptop is being blocked by a corporate firewall. If the connection is established and working for a couple of minutes it is very unlikely to be the laptop itself. We have already eliminated Wireless which has known issues.

- The OS of my boss MacBook is a snow leopard 6.0 . His notebook is only one to have a problem in the company whiel another staffs that use the Windows XP and Windows 7 don't have this problem.