Ubuntu Desktop vrs Server versions

[Carruth, Rusty]

Cannot answer the question, but I can tell you where to look to see why
the system is no longer on the network.

 

On the box which is no longer seen by the rest of your network:

 

First, check to see that the Ethernet device you are connecting to the
network is up and configured.  Use ifconfig for that.

Next, make  sure the routing tables are correct.  Use route for that.

Next, make sure you can get outside.  Easiest way is to go to a remote
web page.

Next, instead of using 'localhost' as the name for the machine, try
using its externally-visible IP address.  E.G. if it is 10.5.1.2 then
use 10.5.1.2 instead of localhost for one of your 'inside the box'
tests.

 

All that will verify that the box is on your network and listening to
the external IP address to serve requests.

 

Now, from a remote machine, try to ping that machine.  If it answers,
then you can reach it and things should have been working.  Note also
that pinging or tracerouting with a port number can reveal listening
issues as well.

 

If you know when the change from working to not working happened, do a
find from /etc for any files which have changed since that 'known time'
(e.g. find /etc -newer <file with older-than date>)

 

Of course, this is all generic stuff, Lisa just said something very
ubuntu-specific.  See her info first, but for everyone else the above
might help in time of need J

 

Rusty

 

 

From: plug-discuss-bounces at lists.plug.phoenix.az.us
[mailto:plug-discuss-bounces at lists.plug.phoenix.az.us] On Behalf Of Joe
Gibbs
Sent: Wednesday, May 02, 2012 10:38 AM
To: plug-discuss at lists.plug.phoenix.az.us
Cc: Joseph Gibbs
Subject: Ubuntu Desktop vrs Server versions

 



Hi

 

I have a small Dell box that I have been using off and on for misc work
related sw testing (started with v 9.x Desktop).

 

I need to ramp up my personal training (as I am looking for work at the
moment) and have a question for the group.

 

Currently I am running 12.04 Desktop version with Apache, MySQL, OpenSSh
and some other server packages installed. I will be installing Oracle
next week for my next training project. However after the 12.04 upgrade
I find that I can not access the Desktop Ubuntu machine from anything on
the local network. I can access apache, mysql locally. A local ssh
connections works just fine. Just can't do any of them from outside the
box from anything on my home/local network.  I don't think there are any
running firewalls, so I am discounting that as an issue. 

 

Would a fresh install of the Server version be a better long term
solution for working with those type of packages, or should I stick with
my 4x upgraded Desktop version?

 

and

 

Does anyone have any suggestions as to what I can look into to resolve
my network connection issue ?

 

Thanks

Joe Gibbs

 

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