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Full Discussion: DNS Response Issue
Operating Systems Linux DNS Response Issue Post 302961163 by MadeInGermany on Tuesday 24th of November 2015 03:10:03 PM
Old 11-24-2015
In the Unix/Linux world nobody pings the domain. There can be zero servers configured.
DNS needs the following only
Code:
nslookup -q=ns my.domain

The result is important for all DNS servers. While caching-only servers do not need to show up there. The clients rely on the resolv.conf only.
I guess your Linux systems have caching-only servers configured.

Last edited by MadeInGermany; 11-24-2015 at 04:16 PM..
 

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rpc.nisd_resolv(1M)													       rpc.nisd_resolv(1M)

NAME
rpc.nisd_resolv - DNS service daemon for NIS SYNOPSIS
file_descriptor]] transport] program_number] DESCRIPTION
is an auxiliary process which provides DNS forwarding service for NIS hosts requests. The process is started by (NIS server) when invoked with the option. It requires the file to be set up for communication with a DNS nameserver. The utility can be used to verify communica- tion with a DNS nameserver. See resolv.conf(4) and nslookup(1). Although it is not recommended, can also be started independently with the following options. Options Uses the specified file descriptor for service Runs in foreground. Uses the specified transient program number for RPC service procedure. Uses the specified transport. Operates in verbose mode. Sends output to: Operates in verbose mode. Sends output to stdout. AUTHOR
was developed by Sun Microsystems, Inc. FILES
resolver configuration file. SEE ALSO
nslookup(1), ypserv(1M), resolv.conf(4), ypfiles(4). rpc.nisd_resolv(1M)
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