nslookup is failing from the kdump initrd busybox environment in RHEL 6

Solution Verified - Updated -

Issue

Kdump configuration uses 2 scripts, '/var/crash/scripts/kdump-pre.sh' and '/var/crash/scripts/kdump-post.sh', which would try to send email and log to syslog when kdump events occur.

Because nslookup is not working, it cannot do a reverse lookup to query the hostname using the ipaddr. This works in RHEL 5 but fails in RHEL 6.

Kdump is working and successfully generated a vmcore file. The issue is the lack of the hostname in the notification email.

Environment

Red Hat Enterprise Linux (RHEL) 6

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