Linux
Linux
What are Load Averages?
Load averages represent the average number of processes that are either: They give a snapshot of how much work your system has been doing over time. Linux usually reports three numbers for load average, which represent the load over different periods: For example, when you run the uptime or top command, you might see something […]
Linux
[SOLVED] The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key
Here is the solution if you’ve got the following error message when updating package lists on Debian (apt-get update): The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key The sury.org Debian package repository has changed its package signing key. To fix the error, just download the new key: Finally, run package update again: […]
Linux
Backup a website using bash script.
I needed to complete a routine backup of my development websites on my home server. This was pretty easily completed by daily by a bash script. Here is a simple script that backs up the database and all the files. For the example below I’m using Maria DB 10.5 and my project files are located […]