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Today's Topics:
1. [Netdot - Bug #1762] Reverse auto DNS breaks in
DeviceIpNamesByInt.pm when a device hostname contains a "."
([email protected])
----------------------------------------------------------------------
Message: 1
Date: Sat, 13 Jul 2013 04:52:19 -0700
From: [email protected]
Subject: [Netdot-devel] [Netdot - Bug #1762] Reverse auto DNS breaks
in DeviceIpNamesByInt.pm when a device hostname contains a "."
To: [email protected], [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8
Issue #1762 has been updated by Nick Hilliard.
this affects forward dns too, hmm.
----------------------------------------
Bug #1762: Reverse auto DNS breaks in DeviceIpNamesByInt.pm when a device
hostname contains a "."
https://osl.uoregon.edu/redmine/issues/1762#change-3093
Author: Nick Hilliard
Status: New
Priority: Normal
Assignee:
Category: DNS
Target version: 1.0.5
Resolution:
DeviceIpNamesByInt::get_name_from_interface automatically strips anything after
and including the period in a device name. If the network device actually has
a legitimate "." in it, this breaks the auto reverse DNS.
E.g. if your device hostname is "router.pop", the interface name is Gi0/0 and
the domain name is "example.com", DeviceIpNamesByInt::get_name_from_interface()
will return "gi0-0.pop.example.com" instead of "gi0-0.router.pop.example.com".
This is obviously incorrect.
This can be fixed with the following patch:
<pre>
--- lib/Netdot/Model/Plugins/DeviceIpNamesByInt.pm.old 2013-06-14
02:13:43.000000000 +0100
+++ lib/Netdot/Model/Plugins/DeviceIpNamesByInt.pm 2013-06-19
23:55:21.000000000 +0100
@@ -142,7 +142,7 @@
# Remove any possible prefixes added
# e.g. loopback0.devicename -> devicename
my $devname = $ip->interface->device->short_name;
- $devname =~ s/^.*\.(.*)/$1/;
+# $devname =~ s/^.*\.(.*)/$1/;
$name .= ".".$devname ;
return $name;
</pre>
I'm not sure what the best thing is to do here. If this line is removed, that
will change the default behaviour, which may affect other installations. On
the other hand, the current behaviour is clearly wrong in many legitimate
situations.
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