Tracking Your Server’s Boot History with journalctl
If you manage Linux servers, whether it’s a production web host, a database node, or a container host, you’ve probably had that…
Linux
CPU
To find cpu temperature on Linux, run You can also use sensors command, to install, use To find cpu frequency, run To…
SSH no hostkey alg
When connecting to an Ubuntu 24.04 server from CentOS 6 server, i got error “no hostkey alg” To fix this error, edit…
Route Specific Subnet Through OpenVPN
Recently a customer send an ovpn file to connect to a server, which is on private netowrk. When i connect to the…
Server-to-Server File Transfer with PHP Script
When migrating a website, transferring files from the source server to the destination server is a key step. If you have SSH…
Install ffmpeg on AlmaLinux 8
First, enable epel repo Enable rpmfusion repo Install ffmpeg with Verify ffmpeg is working Back to ffmpeg
How to Restore Large Database with PHP Script
Restoring a large MySQL database can sometimes be a daunting task, especially when using phpMyAdmin, which may fail due to size limitations…
How to Set Up Software RAID 1
mdadm is used to manage software RAID. Install mdadm package with To set up RAID 1 (mirror), you need 2 drives or…
How to extract .deb file in Ubuntu?
You can use dpkg-deb command to extract the contents of a .deb file in the Ubuntu or Debian system. Example: Here we…
Keeping Ubuntu Secure with Unattended-Upgrades
Keeping your operating system up-to-date is crucial for maintaining security and stability. For Ubuntu/Debian users, the unattended-upgrades package offers a solution to…
DHCP
DHCP, or Dynamic Host Configuration Protocol, is a network management protocol that automates the process of assigning IP addresses and other network…