Configure DNS & Search Domains in TCP/IP Settings via Terminal?

HI Folks,
I've been having a long standing battle trying to find out what is wrong with my machine, it's been running like a dog for a while and having recently added 2 new Macs to our network i recall that there was a setting missing - namely within the TCP/IP settings for the Built In Ethernet, the DNS Servers and Search Domains are not configured on my machine, but are on the new ones i've added (mine was my new foray into Macs so i maybe set it up wrong!)
However the main problem occurs when i try to edit the settings for the above from within System Preferences -> Network, i get a spinning beach ball of doom and have to Force Quit. Yet oddly i can access the setting fine when i am at home and not connected to the AD of the Windows Server Environment... which makes me think the events could be linked.... i thought it may have been Parallels and it's NAT settings, but given that all works perfectly at home i'm not so sure. Hence, as a process of elimination i'd like to try and get the correct settings for Search Domain etc to see if it helps, before i flatten the machine and reinstall Tiger completely!
The main issues i've been having with the machine can be found here:
http://discussions.apple.com/thread.jspa?threadID=854009&tstart=0
Thanks
Scott
MBP 2.0Ghz, 2Gb RAM, 100Gb 7200rpm Mac OS X (10.4.9) Parallels

Hi Phil (and others!)
I opted for the easy choice, which did work... and have added the Search Domain info etc whilst at home... and touch wood today things seem to be working better, i can easily access network preferences etc and have had no hanging apps as yet...
I did try and use different locations for work and home, but sadly i ended up with a spinning beach ball of doom when i tried to change the location at work, so it was a slightly pointless exercise!!!
The lookupd -configuration printout is as follows (no idea if it's useful in any way!)
ConfigSource: default
LookupOrder: Cache NI DS
MaxIdleServers: 4
MaxIdleThreads: 2
MaxThreads: 64
TimeToLive: 43200
Timeout: 30
ValidateCache: YES
ValidationLatency: 15
configname: Global Configuration
LookupOrder: Cache FF DNS NI DS
configname: Host Configuration
LookupOrder: Cache FF NI DS
configname: Service Configuration
LookupOrder: Cache FF NI DS
configname: Protocol Configuration
LookupOrder: Cache FF NI DS
configname: Rpc Configuration
TimeToLive: 60
ValidateCache: NO
configname: Group Configuration
TimeToLive: 300
ValidateCache: NO
configname: Initgroup Configuration
LookupOrder: Cache FF DNS NI DS
configname: Network Configuration
Thanks
Scott
MBP 2.0Ghz, 2Gb RAM, 100Gb 7200rpm Mac OS X (10.4.9) Parallels

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Hi Phil (and others!)
I opted for the easy choice, which did work... and have added the Search Domain info etc whilst at home... and touch wood today things seem to be working better, i can easily access network preferences etc and have had no hanging apps as yet...
I did try and use different locations for work and home, but sadly i ended up with a spinning beach ball of doom when i tried to change the location at work, so it was a slightly pointless exercise!!!
The lookupd -configuration printout is as follows (no idea if it's useful in any way!)
ConfigSource: default
LookupOrder: Cache NI DS
MaxIdleServers: 4
MaxIdleThreads: 2
MaxThreads: 64
TimeToLive: 43200
Timeout: 30
ValidateCache: YES
ValidationLatency: 15
configname: Global Configuration
LookupOrder: Cache FF DNS NI DS
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configname: Service Configuration
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configname: Protocol Configuration
LookupOrder: Cache FF NI DS
configname: Rpc Configuration
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configname: Group Configuration
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configname: Initgroup Configuration
LookupOrder: Cache FF DNS NI DS
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Thanks
Scott
MBP 2.0Ghz, 2Gb RAM, 100Gb 7200rpm Mac OS X (10.4.9) Parallels

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Daniel Janssen wrote:
Hi,
I had some spyware on my computer but removed it with Macscan. However, I still find the name 'Ian' in my system preferences under Network 'Search Domains'. I can't remove it. Is my Mac infected once more?
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I stopped being able to access the internet with manual TCP/IP settings in the Network Preferences after updating from 10.4.5 -> 10.4.6.
When I change settings to use DHCP everything works fine, but I need to get the manual settings working as I use them quite often when configuring/setting-up routers.
This happens with both the AirPort and Ethernet interfaces, so it doesn't matter which interface I use to connect through.
My network Locations with manual TCP/IP settings have worked fine with 10.4.5, under the same networking hardware (routers, cables, etc...).
This occurs both at home (with my Linksys wireless router) and at work (with a DrayTek router).
At home, this problem occurs with both my PB12 and my wife's iBook12, after the 10.4.6 update was applied.
At work, all Windows laptops can connect to the internet using manual TCP/IP settings, but not my PB12.
Example of my settings:
- IP: 192.168.1.99
- Mask: 255.255.255.0
- Router: 192.168.0.1
- DNS: <empty>
- Domains: <empty>
Already tried, without success:
- verified disk -> no errors found on disk!
- repaired permissions, using Disk Utility, rebooted and tested -> no connection!
- tried with DNS=192.168.0.1 -> no connection!!
- tried with DNS=[my ISP primary dns] -> still nothing!!!
- even tried reapplying the combo update 10.4.5 -> of course, it didn't let me, as I'm now in 10.4.6!
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... other than archive&install, in order to downgrade!
PB12'' @ 1,33 GHz w/ 768MB RAM Mac OS X (10.4.6)

Yes, buy I also state in my original post that I:
- tried with DNS=[my ISP primary dns] -> still nothing!!!
but yes, I probably should have titled it "No network access using..." (posting as 4:30 AM was probably not the best idea :D)
I understand I might have been a bit clumpsy posting my problem and appreciate everyone's corrections to what I wrote, but trust me that I have done a lot of tests and spent many hours on this... Bear in mind that I am using a network Location with manual definitions that was working before the update!
Anyway, as it happens, the likely culprit now seems to be more of a 3rd party software's inability to deal with 10.4.6 rather than the 10.4.6 itself!
I've disabled/unistalled/turnned off/deleted (depending on the app) anything NOT Apple that had anything to do with networking, be it for monitoring, controlling or managing (just to name a few: Little Snitch, Menu Meters, BrickHouse, etc, etc, etc...).
The Location with the manual settings is now working fine (at least at the office).
Over the next week or so I'll incrementaly re-install those 3rd party tools (which were most likely not up-to-date anyway) and see if something breaks at some point... but won't put much effort into it -- just happy to see it working again!
I'm closing this for now, as I don't have any more time for it (work is pilling up!)... If I manage to find out which version/app combination was causing the problem I'll post it back here!

Search Domains = Ian?

Hi.
I was just changing my DNS Servers to use Google's Public DNS http://code.google.com/speed/public-dns/index.html in System Preferences>Network>AirPort>Advanced>DNS
When I noticed listed under Search Domains (to the right of DNS Servers) the name "Ian". It's lightly greyed out and you can't click and press minus to remove it. It also appears in my girlfriends MacBook and in my iPhone settings, so I imagine it is some auto network setup.
I have read on an archived thread someone else who had the same thing:
http://discussions.apple.com/thread.jspa?threadID=1816266&tstart=0
Should I be concerned?

I believe I may be being a little silly, the Ian may of course be LAN in lowercase.
Ian lan just a little height difference there.

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