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<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal"> I have been a little remiss in getting back to everyone. I have the issue with the virtual machine taken care of for the moment. I am having issues with my firewall NOT letting traffic to the webserver so I’m working on that at the
moment. <o:p></o:p></p>
<p class="MsoNormal">Thanks to all who replied to my plea for help.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Dan Will<o:p></o:p></p>
<p class="MsoNormal">Meigs County District Public Library<o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Technology Supervisor<o:p></o:p></span></p>
<p class="MsoNormal"><a href="mailto:danwill@meigslibrary.org"><span style="color:#0563C1">danwill@meigslibrary.org</span></a><o:p></o:p></p>
<p class="MsoNormal">740.992.5813<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Ed Liddle <eliddle@marysvillelib.org> <br>
<b>Sent:</b> Monday, March 21, 2022 9:36 AM<br>
<b>To:</b> 'OPLINTECH (OPLINTECH@lists.oplin.org)' <OPLINTECH@lists.oplin.org>; Danny Will <danwill@meigs.onmicrosoft.com><br>
<b>Subject:</b> Re: EXTERNAL: Intermittent network issues<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Dan, <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">How do you have the IP address setup on the ubuntu machine that you are having problems with?
<br>
We had a physical machine running ubuntu. I was using a DHCP reservation to assign it an IP address based on the MAC address of the NIC.
<br>
It would work for a while then we would have trouble accessing it on the network.
<br>
What I discovered is when we had trouble, the IP address and MAC address changed on the computer. When we had trouble, I would log into the ubuntu server and check the ip address on the command line. It would show a different IP address. I would then look up
the new IP address on the windows DHCP server and notice that the MAC address was different than the DHCP reservation I made for it.
<br>
What I ended up doing was configuring the Ubuntu server to use a static IP address, which was a different process than I was used to.
<br>
This article explains how to configure a static IP address by editing a yaml configuration file.
<br>
<a href="https://www.osradar.com/set-a-static-ip-address-ubuntu-20-04/">https://www.osradar.com/set-a-static-ip-address-ubuntu-20-04/</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">When you experience trouble with it, log into the ubuntu server and check to see what IP address it is getting. If it pulls a different IP address from the DHCP server, you will be able to ping
other machines on the LAN and get a response since it does have an IP address. Anything trying to access the server from the network won't be able to find it if the IP address changed.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">I hope this helps.
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">-Ed Liddle
<br>
Marysville Public Library<br>
<a href="http://marysvillelib.org">http://marysvillelib.org</a> <o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> OPLINTECH <<a href="mailto:oplintech-bounces@lists.oplin.org">oplintech-bounces@lists.oplin.org</a>> on behalf of Danny Will via OPLINTECH <<a href="mailto:oplintech@lists.oplin.org">oplintech@lists.oplin.org</a>><br>
<b>Sent:</b> Thursday, March 17, 2022 12:42 PM<br>
<b>To:</b> 'OPLINTECH (<a href="mailto:OPLINTECH@lists.oplin.org">OPLINTECH@lists.oplin.org</a>)' <<a href="mailto:OPLINTECH@lists.oplin.org">OPLINTECH@lists.oplin.org</a>><br>
<b>Subject:</b> EXTERNAL: Intermittent network issues</span> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="line-height:12.0pt;background:#FF0017"><span style="font-size:10.0pt;color:#FFBF00">CAUTION:</span><span style="font-size:10.0pt;color:white"> This email originated from outside of the organization. Do not click links or open attachments
unless you recognize the sender and know the content is safe.<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="xmsonormal">Hi all,<o:p></o:p></p>
<p class="xmsonormal"> It’s not often that I’m stumped but…<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">I have a windows 2019 server with 2 virtual machines running Ubuntu Linux server (no GUI installed). Both are 20.0.4.3 but, that really isn’t the important part. Both are running websites. One is a copy of the Meeting Room Booking System
and it runs perfect. The other is a slightly modified copy of Omeka database system that we use as our local history site. Cataloging newspapers, High School yearbooks, Photographs, & just about anything else that is historically worthy of keeping. While it
is getting kind of large, it works fine EXCEPT…<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">From time to time, & without any indication of why, this site cannot be reached. I have tried the WAN address by both FQDN & IP address. I have tried the LAN address (10.66.76.24) to no avail. If I log onto the virtual machine, I can ping
the internal DNS server & any external address (google.com, etc.).<o:p></o:p></p>
<p class="xmsonormal">This comes and goes without rhyme or reason. At this point I am ready to pull out what little hair I have out.
<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">I thought at 1<sup>st</sup>, that the firewall was the issue, so I changed things around to by-pass the usual firewall. Worked for a little while then it was down again (worked for maybe 2 or 3 hours, just enough time that I left for home
just to hear a short time later we were getting calls about it being down again). So it was not the firewall. I made a small change to the NIC settings on the server. It worked fine after that…for 20 minutes back down.
<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">TIA<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">Dan Will<o:p></o:p></p>
<p class="xmsonormal">Meigs County District Public Library<o:p></o:p></p>
<p class="xmsonormal"><span style="color:#1F497D">Technology Supervisor</span><o:p></o:p></p>
<p class="xmsonormal"><a href="mailto:danwill@meigslibrary.org">danwill@meigslibrary.org</a><o:p></o:p></p>
<p class="xmsonormal">740.992.5813<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
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