06-28-2015
I realise that I'm joining this thread very late but you say "mailx command is not working anymore, so the servers are not sending email alerts to administrators". So presumably your user community is still able to use email otherwise they would all be complaining? You are saying that emails to sysadmins aren't working because their domain address(es) are not being resolved?
If that is the case then you have two options:
- Get the sysadmins target domains also registered on the DNS system so they are also resolved, or,
- Insert the sysadmins email domains into the /etc/hosts file on all systems. You will need to enter the FQDN in there.
In generic Unix terms, OS's (and you didn't say which OS this is) will look in /etc/hosts for name resolution
before resorting to DNS. Therefore, by inserting IP addresses in /etc/hosts you can catch it early and resolve the name within the system.
If I've still misunderstood the issue please explain further.
Last edited by rbatte1; 06-29-2015 at 06:30 AM..
Reason: Converted text numbered list to formatted numbered list with LIST=1 tags
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LEARN ABOUT MOJAVE
net::dns::rr::srv5.18
Net::DNS::RR::SRV(3) User Contributed Perl Documentation Net::DNS::RR::SRV(3)
NAME
Net::DNS::RR::SRV - DNS SRV resource record
SYNOPSIS
use Net::DNS;
$rr = new Net::DNS::RR('name SRV priority weight port target');
DESCRIPTION
Class for DNS Service (SRV) resource records.
METHODS
The available methods are those inherited from the base class augmented by the type-specific methods defined in this package.
Use of undocumented package features or direct access to internal data structures is discouraged and could result in program termination or
other unpredictable behaviour.
priority
$priority = $rr->priority;
Returns the priority for this target host.
weight
$weight = $rr->weight;
Returns the weight for this target host.
port
$port = $rr->port;
Returns the port number for the service on this target host.
target
$target = $rr->target;
Returns the domain name of the target host.
COPYRIGHT
Copyright (c)1997-2002 Michael Fuhr.
Portions Copyright (c)2005 Olaf Kolkman, NLnet Labs.
Package template (c)2009,2012 O.M.Kolkman and R.W.Franks.
All rights reserved.
This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.
SEE ALSO
perl, Net::DNS, Net::DNS::RR, RFC2782
perl v5.18.2 2014-01-16 Net::DNS::RR::SRV(3)