Normal users unable to resolve dns

Solution Verified - Updated -

Environment

  • Red Hat Enterprise Linux All Versions

Issue

  • Getting below error when trying to dig as a normal user :
host01.sub.test.gov% dig rhnsat.esc.gov

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.2 <<>> rhnsat.example.gov
;; global options: +cmd
;; connection timed out; no servers could be reached

Resolution

  • Verify the permissions of the /etc/resolv.conf file. Make sure that the file has read permissions. 
For example:

# ls -lZ /etc/resolv.conf
-rw-r--r--. root root system_u:object_r:net_conf_t:s0  /etc/resolv.conf

Root Cause

# ls -l /etc/resolv.conf
-rw-r-----. 1 root root 381 Aug 29 21:38 /etc/resolv.conf
  • Run dig as a normal user:
$ dig redhat.com

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.2 <<>> redhat.com
;; global options: +cmd
;; connection timed out; no servers could be reached

Diagnostic Steps

  • If above information doesn't help resolve the issue, get the output of below command:
# ls -lZ /etc/resolv.conf
  • Collect sosreport

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