Do a netstat command and that should show you whether the connection is
being established or being dropper by a firewall or similar.

Richard
On 31/10/2014 7:26 AM, "Mark Sinclair" <[email protected]> wrote:

> I've had a Jenkins server running for about 6 months.  I have updated
> plugins on many occasions, even updating Jenkins itself to the latest a few
> times.  It has been a couple of months since I updated and I needed to
> update a plugin.
>
> Now when I try to update plugins, I get to the Installing Plugins/Upgrades
> page, but it gets stuck on Preparation - "Checking internet connectivity"
>
> This used to work.  I tried:
> backreving to an older version of Jenkins.
> Using the latest version
> Running Jenkins on a different unix machine.  A ping to www.google.com
> shows the machines I'm using have internet connectivity.
>
> I run Jenkins like this:
> nohup java -jar jenkins.war --httpPort=8080 >& jenkins_out.log &
>
> I do not have any proxy server setup.  This was not needed in the past.
>
> Any clue on where I can start debugging this further?
>
> Thanks.
>
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