CentOS

7.6 is probably too old. Try 7.8. It installed on my Ryzen system.

Just had built: Corsair R100 case with Corsair 550Watt power, Ryzen 7 3700 8 core/16 thread, Asus Prime X570-pro, 64GB Kingston DDR4 2666 ECC ram,I think an MSI Radeon 5700 (original damaged in shipping) and a Seagate FireCuda 500GB PCIe 4.0 M.2 drive. CentOS 7.7 and 8.1 install and light up the net...

Press the spacebar

Pssst, CentOS 6 was released July 10, 2011

You have control of both sides of that equation and the answer will be in the logs.

But, sending directly from an AWS instance? I'd expect you to be blocked by a lot of mail servers unless you go through Amazon's smtp outs.

and you can use LVMs for your storage backing in KVM.

When I transfer files I use pigz to compress the data and then pipe that through ssh $ tar cf - filename(s) | pigz | ssh -oCompression=no user@remote "cd /destination/directory && tar xvzf -" Usually more than one file, so tar, but tar also keeps permissions etc on the receiving machine. That gets m...

How about that shows all bad logins via ssh on CentoS6,7,8 on systems I've looked at.

dmidecode too

Check the output of: if it doesn't include your new sshd port then semanage is the command that you use to add it.