There are linux client machines on the network that point to a Win 2003 Domain Controller running DHCP for IP addresses. The DHCP server scope is also supposed to inject DNS suffixes to the clients. Apparently it doesn't work for linux clients.
When I check the resolv.conf file I only see "search one.domain"
I enabled DHCP option 119 already and it still doesn't work.

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Does your DHCP send the DNS's server to those computer ?

Run a ifconfig on the linux to be sure.

After, try with the short name and the FQDN to isolate if it's a suffix's error.


Let us know the test result!
MCP | MCTS 70-236: Exchange Server 2007, Configuring

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Also, pls refer similar discussion and see if suggestions mentioned there helps
Why can Windows machines resolve local names when Linux can't?

http://serverfault.com/questions/352305/why-can-windows-machines-resolve-local-names-when-linux-cantPress
any key... What the ... Where's any key ?


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yes the DHCP scope options do include a option 119 DNS Search List
However it doesn't appear to work, despite the fact that the dhclient is correct version on the linux side

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Please post a unedited ifconfig, and one ipconfig /all from a windows client to compare.

Edited; Post a result from that command "cat /etc/resolv.conf"

MCP | MCTS 70-236: Exchange Server 2007, Configuring

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Very strange symptoms suddenly showing up after the recent upgrade to Windows 2003....
1) linux clients suddenly get their resolv.conf overwritten, losing their dns suffixes
2) sometimes the NetworkManager is responsible for overwriting the resolv.conf. Other times /sbin/dhclient-scripts overwrote it
3) it appears changing something in the scope on the Windows 2003 DHCP server can trigger it
Here is the output from a windows box and a linux box:
C:\Users\barton>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : wendigo
Primary Dns Suffix . . . . . . . : hq.conexant.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : se.conexant.com
stage.conexant.com
dr.conexant.com
dev.conexant.com
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : hq.conexant.com dev.conexant.co
m conexant.com se.conexant.com dr.conexant.com stage.conexant.com
Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Physical Address. . . . . . . . . : 78-2B-CB-7E-15-F4
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::2dd3:71e5:5ca3:fa26%11(Preferred)
IPv4 Address. . . . . . . . . . . : 10.9.9.12(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Lease Obtained. . . . . . . . . . : Wednesday, May 30, 2012 8:31:52 AM
Lease Expires . . . . . . . . . . : Friday, June 15, 2012 8:32:02 AM
Default Gateway . . . . . . . . . : 10.9.8.10
DHCP Server . . . . . . . . . . . : 10.9.8.246
DHCPv6 IAID . . . . . . . . . . . : 242756555
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-4A-3B-36-78-2B-CB-87-32-67
DNS Servers . . . . . . . . . . . : 10.9.8.246
10.9.8.248
10.9.10.177
NetBIOS over Tcpip. . . . . . . . : Enabled
Tunnel adapter isatap.hq.conexant.com dev.conexant.com conexant.c
om se.conexant.com dr.conexant.com stage.conexant.com:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : hq.conexant.com dev.conexant.co
m conexant.com se.conexant.com dr.conexant.com stage.conexant.com
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
C:\Users\barton>

---------------------------------------------
[jim@linux-nary network-scripts]$ cat /etc/resolv.conf
search conexant.com hq.conexant.com dev.conexant.com stage.conexant.com dr.conexant.com se.conexant.com
nameserver 10.9.8.246
nameserver 10.9.8.248
nameserver 10.9.10.177

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