Linux tricks, tutorials, hardware

You got an underpowered amd64 machine on which you want to install Gentoo. But instead of waiting for it for days to compile libreoffice or ...

So I had to migrate my crossdev setup which I was using to maintain my laptop to a chroot-maintained setup on my non-avx512 capable workstat...

 NOTE: it did not work out. The (remote) sccache-dist server error out with --  Missing output path "/tmp/portage/www-client/firefox-12...

No one knows exactly what this is in context of mdadm, but this must be the minimum i/o size of the RAID block device. Regardless, I did som...

While performance of right-asymmetric, left-asymmetric, right-symmetric, left-symmetric, is roughly the same, the performance of parity-last...

Over the years your archival HDDs are susceptible to bitrot. You've to re-write them on regular intervals to prevent that. You can use d...

 If you've specified -r at the input, you may like to try moving it before the -vcodec to resolve the issue. With this change, the input...

 Methodology /mnt/tmpfs/ contains trimmed linux sources. Large files where removed to reduce the size of the total storage to 5GB. /mnt/tmpf...

Recently I came across this benchmark, which although old, but laughable (if you don't know why, I suggest you either readup more about...

 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...