<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta content="text/html;charset=UTF-8" http-equiv="Content-Type"></head><body ><div style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;"><div>Dan,<br></div><div><br></div><div>Overlapping IPs? I would check any devices on the same internal address range that might have the same address, either static (like a printer that is only powered on once in a while). Most of the time static IPs are outside the dynamic range, but it is possible to forget something. Also, make sure nothing like a wireless access point has a second address server running, which might happen if the network appliance was reset.<br></div><div><br></div><div>Hope this helps,<br></div><div><br></div><div>Matt Kinsey<br></div><div>IT Coordinator<br></div><div>Guernsey County District Public Library</div><div class="zmail_extra_hr" style="border-top: 1px solid rgb(204, 204, 204); height: 0px; margin-top: 10px; margin-bottom: 10px; line-height: 0px;"><br></div><div class="zmail_extra" data-zbluepencil-ignore="true"><div><br></div><div id="Zm-_Id_-Sgn1">---- On Thu, 17 Mar 2022 12:42:11 -0400 <b>Danny Will via OPLINTECH <oplintech@lists.oplin.org></b> wrote ----<br></div><div><br></div><blockquote style="margin: 0px;"><style>@font-face {
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}</style><div class="zm_-565629007452400139_parse_-1006156252064275224"><div class="x_-1664237544WordSection1"><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;">Hi all,</span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;"> It’s not often that I’m stumped but…</span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;"> </span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;">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…</span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;"> </span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;">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.).</span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;">This comes and goes without rhyme or reason. At this point I am ready to pull out what little hair I have out.</span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;"> </span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;">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.</span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;"> </span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;">TIA</span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;"> </span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;">Dan Will</span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;">Meigs County District Public Library</span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;"><span class="colour" style="color:rgb(31, 73, 125)">Technology Supervisor</span></span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;"><a href="mailto:danwill@meigslibrary.org" target="_blank" style="color: rgb(0, 0, 238);"><span class="colour" style="color:rgb(5, 99, 193)">danwill@meigslibrary.org</span></a></span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;">740.992.5813</span></span><br></p><p class="" style="margin: 0in;"><span class="font" style="font-family:Calibri, sans-serif"><span class="size" style="font-size: 11pt; margin: 0in;"> </span></span><br></p></div></div><div>_______________________________________________<br></div><div>OPLINTECH mailing list<br></div><div>OPLINTECH@lists.oplin.org<br></div><div>http://lists.oplin.org/mailman/listinfo/oplintech<br></div><div><br></div><div>****** ****** Ready to level up your library's website to something that meets current standards and is easy to manage? 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