Centos 7.6 Minimal Post Install Change

blog, Linux, Ubuntu, VMWare
I'm working on a project at a customer location this week and this particular project required me to install Centos 7+.  Being an Ubuntu guy, I kicked and moaned for about 3 whole seconds and started the install.  It went as smooth as you'd expect, however, I was greeted with no network connectivity once Centos rebooted.  Mentally, I thought it was needing VMWare drivers or something but as it turns out, I just needed to enable the network interface. vi /etc/sysconfig/network-scripts/ifcfg-<cardname> Now change ONBOOT=No to ONBOOT=Yes Then simply reboot and make sure you can get connected to the network.
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Server 2016 VM losing network connectivity on VMWare ESXi 6.5

Microsoft, VMWare, Windows
I ran into an issue recently where servers that have been running for 6+ months with normal patching/rebooting, but without issue, all of a sudden started losing network connectivity.  The icon would pop up in the tray and the server was no longer reachable.  I still don't know the underlying cause of the issue, but here's what I figured out. Thanks to this blog post, I was able to throw some commands at the box (network tuning stuff) and determine which specific command fixed the network access. Here are the commands: netsh int tcp set global chimney=Disabled netsh int tcp set global autotuninglevel=normal netsh int tcp set supplemental custom congestionprovider=none netsh int tcp set global ecncapability=Disabled netsh int ip set global taskoffload=disabled netsh int tcp set global timestamps=Disabled netsh int…
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