How to Extend a LVM Partition on an Ubuntu VM
We have an Ubuntu 20.04 VM running under VMware. The users reported that the root partition is running out of free space. We first deleted […]
Linux
Nvidia T4 and Matlab on Ubuntu Linux
I setup a PowerEdge server with a Nvidia T4 GPU. The OS is Ubuntu 20.04. User complained that the Matlab benchmark is very slow. The […]
How to Install Omreport on a CentOS 7 PowerEdge Server
We recently had a problem with a hard drive in one server. The drive is part of a RAID. After reseat the drive, the server […]
Default PHP Log File Location on CentOS 8
I set up a small web server to let my users run some simple PHP scripts. It was running fine for a few years and […]
my_config.h: No such file or directory on CentOS 8
When I tried to install MySQL-python module on a CentOS 8 machine, I got this error message: On previous distribution, I can add the my_config.h […]
Command Line to Install Ubuntu 18.04 on Windows 10
Note that the following instructions are tested on Windows 10 Version 1809. If you have an earlier version, please upgrade it first. Enable Windows Subsystem […]
How to Compile Samba 4.10.5 on Ubuntu 16.04
There was a vulnerability for Samba 4.3.11 on Ubuntu 16.04. We were asked to update the Samba version to the latest 4.8 or above on […]
Ubuntu 16 4.4.0-143 Kernel Breaks Nvidia Driver
One user reported his machine did not let him log on after the recent update. I checked several logs to find out the Nvidia driver […]
How to Clear Samba and Winbind Cache
One user updated his Scientific Linux 7 recently. The version of Samba was upgraded from 4.4 to 4.8. The samba service was not running smoothly […]
PHP SSL CERTIFICATE_VERIFY_FAILED Error
A user reported that a certain PHP script stopped working on the server. The error messages are: Traceback (most recent call last): File “”, line […]
