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RHEL Name Resolution Local Host file and DNS

Posted on 2013-01-02

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Last Modified: 2013-01-02

Unable to get name resolution from RHEL 5 /etc/hosts.

/etc/nsswitch.conf includes:

hosts: files dns

Example: /etc/hosts contains:
172.113.100.1 testsservername

host testservername returns: Host testsservername not found: 3(NXDOMAIN)

Thanks
GSK

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Question by:gskortz

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4 Comments

LVL 31

Accepted Solution

by:farzanj

farzanj earned 350 total points

ID: 387375182013-01-02

host command will query DNS not /etc/hosts file

You can query like

getent ahosts testsservername

LVL 38

Expert Comment

by:Gerwin Jansen, EE MVE

ID: 387375202013-01-02

What is in your /etc/host.conf ?

It should contain:

order hosts,bind

LVL 23

Assisted Solution

by:savone

savone earned 150 total points

ID: 387379352013-01-02

try ping, which will use the service is nsswitch.

try:

ping testservername

It should show the IP address it gets from /etc/hosts.

Author Comment

by:gskortz

ID: 387382242013-01-02

Responding to several comments:
/etc/hosts.conf does contain expect order = hosts,bind

ping does resolve to the expected address so /etc/nsswitch.conf or host.conf acting as expected.

getent hosts [hostname] provides what I need.

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