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Today's Topics:
1. Re: Problem with Netdisco device discovery ([email protected])
--- Begin Message ---
Hi Oliver, maybe I should close out this thread. I think I have got
Netdisco working successfully again. After restoring the /home/netdisco
folder back to a few days ago (still after the error that started this all
appeared), I was able to get in to Netdisco but all the discovery jobs
were failing. In desperation, I did the following as the netdisco user
and now everything seems to be working again. I still don't know why the
first problem occurred on only one device and later on a second device
(Modification of a read-only value attempted at
/home/netdisco/perl5/lib/perl5/x86_64-linux-thread-multi/Net/DNS/Resolver/Base.pm
line 223.).
rm -rf perl5
curl -L https://cpanmin.us/ | perl - --notest --local-lib ~/perl5
App::Netdisco
ln -sf ~/perl5/bin/{localenv,netdisco-*} ~/bin/
~/bin/netdisco-deploy
~/bin/netdisco-web restart
~/bin/netdisco-backend restart
to take care of errors remaining in logs
~/bin/localenv cpanm App::NetdiscoX::Web::Plugin::RANCID
~/bin/localenv cpanm List::Util
~/bin/localenv cpanm App::Netdisco::Core::Discover
~/bin/localenv cpanm --notest App::Netdisco
ln -sf ~/perl5/bin/{localenv,netdisco-*} ~/bin/
~/bin/netdisco-deploy
~/bin/netdisco-web restart
~/bin/netdisco-backend restart
--
Ted Buchanan
Computer/Network Analyst - Vincennes University
[email protected]
From: Oliver Gorwits <[email protected]>
To: [email protected]
Date: 02/04/2018 04:28 PM
Subject: Re: [Netdisco] Problem with Netdisco device discovery
Hi Ted
I have not seen this error before, and at first glance it is within the
Net::DNS distribution, which is one of Netdisco's dependencies, rather
than Netdisco itself.
Let's make sure you have the latest version. Please run:
~netdisco/perl5/bin/localenv cpanm Net::DNS
And then try to discover the device again?
regards,
oliver.
On 2018-01-22 19:40, [email protected] wrote:
> I am running Netdisco on CentOS 6.9 fully updated and recently had an
> error appear when trying to discover a newly configured device on the
> network. I say "newly configured device" since it is possible (I can
> not confirm) that this switch was on the network and in Netdisco
> previously.
> Netdisco details are here:
> Software Version
> App::Netdisco 2.38.28
> SNMP::Info 3.39
> DB Schema 46
> PostgreSQL 8.4.20
> Perl 5.10.1
>
> When performing a discover on the device IP address, the process fails
> and the error below appears. This is actually copied from the
> Undiscovered Neighbors report so Netdisco does correctly identify the
> device.
> id: dh-231-2960S type: cisco WS-C2960S-48FPS-L Modification of a
> read-only value attempted at
>
/home/netdisco/perl5/lib/perl5/x86_64-linux-thread-multi/Net/DNS/Resolver/Base.pm
> line 223.
>
> Any assistance in troubleshooting/correcting this problem is greatly
> appreciated.
>
> --
> Ted Buchanan
> Computer/Network Analyst - Vincennes University
> [email protected]
>
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