Linux tricks, tutorials, hardware

 This is the /etc/apt/source.list --  deb http://deb.debian.org/debian/ testing main contrib non-free non-free-firmware deb-src http://deb.d...

Methodology sequentially writing a 5GB file with cache -- cat /dev/urandom | tee /dev/stdout | tee /dev/stdout| tee /dev/stdout| tee /dev/st...

This printer requires the hpaio SANE backend which will be made available if you install net-print/hplip[-minimal] along with sane-backends....

A script which extracts 1 or multiple tls/ssl certificates from a kubernetes cluster to PWD. NOTE: Will not check the TLS certificate of the...

This printer works out of the box on Debian 10 (which is deprecated as of now). It was added to CUPS automatically. I'm not sure which p...

 This is happening because your PHP scripts are not exiting. They hang up for whatsoever reason (like waiting form some network i/o etc...)....

 If you've set ' LLVM_TARGETS=' remove it and rebuild llvm + clang (in order). I couldn't reproduce the bug however. If you ...

You've added --autologin to agetty in whatever ways (like modifying or creating a new systemd unit). In that vtty, the user DOES login b...

Because of cgroups, systemd knows which process belongs to which systemd unit even if it daemonizes (even to systemd/init). The...

I recently got a contact frame and replaced it with washermod -- benchmarked it and found no difference.

The objective of this article is to achieve WOL in a setup where Internet access is behind a NAT or has a firewall which allows no open conn...

I noticed that the temps on my i3 (Alder lake) was pretty high for an i3. So I did a washer mod and calculated an approx 12 degree drop in t...

 In your bashrc file (either /etc/bash.bashrc, or /etc/bashrc or /etc/bash/bashrc etc...) add the following lines by the very end --  if tes...

The great thing about Intel's laminar coolers is that you can take the fan off by removing 4 screws --  Here I have it attached on the m...

CPU utilization in the last 24 hours --  highest – 100 - min_over_time((avg without(cpu)(((node_cpu_seconds_total{mode=`idle`} - (node_cpu_s...

 After trying out whatever tips and tricks that others have suggested, and this issue still doesn't resolve, this maybe a permission iss...

 It seems Debian 10 does not have this package in the repository, but Debian unstable has. So we'll try building a deb for Debian buste...

In case you cannot get hardware video acceleration to work on your new Intel processor, apart from trying to install the backported kernel, ...

Anyconnect has provisions of a ‘CSD script’… via which basically a remote program which’ll be downloaded from the VPN server an...

There’s a scenario when you want to restrict people from mounting things under a directory, for e.g. /home/test/ based on their...

Run the command -- mount | grep cgroup on your host system, and if you see the all the mount entries as cgroup2 fs (instead of cgroup), then...

 This laptop in reality comes with Linux pre-installed (mine did); so is 100% linux compatible including the wifi.

I think this's a hardware issue. To try and resolve the issue, make a call on mobile network and turn the speaker on. The issue must res...

 In case you're wondering how much power will you get when you replace you wheel or sprocket or tyres to lighter ones, this spreadsheet ...

Will work on any new Linux distribution out of the box. No need to install the 'driver's. In case yours is an old Linux distribution...

One of my relatives (old) had this kind of mysterious fever. It used to go away in 3 days, and then used to come back within around 5 days. ...

Your regular expression can fail against attackers doing attacks by encoding their URLs; fail2ban will not detect those, neither your regula...

Everything about the camera is expected; for the size, it's the best that you can get at night photography (which is still deficient) as...

Sometimes, when you plug in your earphones, the audio stop coming (from the earphones), but the notification sounds continue to come. You...

And when you start to think in modern times when Microsoft loves Linux and opensource; the question arises, is it really the truth? Does Mic...

This's a kernel bug which'll cause docker to hang and is triggered by you stopping a container (which possibly does not stop gracefu...

instead of cleaning your bash history, this script will remove problematic history entries, thus sanitize it. #! /bin/bash # Without argu...

If you're someone who rides at high RPM and have a vehicle which's capable of going to high RPMs (6000+) your engine oil might be su...

The crossdev executable is going to install a toolchain in your host machine for a foreign architecture as regular ebuilds. T...

This issue comes on LXC when you enable dbus so you can communicate to systemd; don't know why this triggers. You need to add the sys_...

The Easy method of Curb does not allow arbitrary request methods to be made. Instead of using Easy, you can use the Curl module. In curb...

Program takes a list of files and directories as a set of last arguments and outputs the paths of each of the files/directories which has be...

This happen on Debian. After an upgrade to lxc 2.0.x, lxc-console does not work well. Produces duplicate characters, cannot log in because o...

I compiled grep and libpcre, once with balanced and once with 1to1 (and of course with -lto=4 in both the cases), and the result was that gr...

Long back SSH had introduced an experimental 'roaming' feature where changes to the ssh client IP resulted in resuming the session o...