If you happen to use KDE Plasma these days and you encounter view problems like you cannot see the whole viewpoint of a window (especially…
tips
Remove disk (all partitions) from software RAID1 with mdadm and change layout of the disk
The following article is to show how to remove healthy partitions from software RAID1 devices to change the layout of the disk and then add…
Build docker image with custom Dockerfile name – docker build requires exactly 1 argument
Docker uses the Dockerfile to build docker images, but what if you want to change the name and (or) the path of this file? By…
nano – Error opening terminal: unknown under chroot or (docker) container
A quick tip for GNU Nano – the text editor. Ever receiving the terminal error when using nano? Under chroot or container (like docker) environment…
Save iptables rules over reboots on Ubuntu 16 and Ubuntu 18 – persistent iptables rules
Moving towards the firewalld software and especially the systemd some good old init scripts got missing! For example, one of those good scripts is the…
nginx proxy cache – log the upstream response server, time, cache status, connect time and more in nginx access logs
The Nginx upstream module exposes embedded variables, which we can use to log them in the Nginx access log files. Some of the variables are…
rsyslog remote logging – prevent local messages to appear
A tip for those who have a remote user server for their log files. When you set up a remote server you probably don’t want…
Live status information like used space and more for nginx proxy cache
Using the Nginx virtual host traffic status module you can have extended live information for your proxy cache module and the proxy cache upstream servers….
root cannot delete, move or change a file – Operation not permitted or Permission denied – immutable attribute
If you are the root user and some file (files or directories) cannot be deleted, removed, renamed or changed you probably deal with the immutable…
openntpd – immediately sync the clock on startup
Here is our simple tip for your healthy server’s date and time: Immediately synchronize the clock of your computer when using the openntpd (a lightweight…