Unwarranted bandwidth usage
PackageKit may go and download a bunch of stuff in the background. Disable it.
# systemctl stop packagekit
# systemctl mask packagekit
DNF may periodically update the repo caches. Disable it.
# systemctl stop dnf-makecache
# systemctl stop dnf-makecache.timer
# systemctl mask dnf-makecache
# systemctl mask dnf-makecache.timer
Can't strace your own processes
This is due to a yama block on the ptrace system call. Red Hat
# echo 0 > /proc/sys/kernel/yama/ptrace_scope
# echo "kernel.yama.ptrace_scope = 0" > /etc/sysctl.d/10-ptrace.conf
apt/dpkg style interactive package installs
If you find you have been inflicted with apt/dpkg style package
# dnf remove python3-dnf-plugins-extras-rpmconf
Keep systemd's grubby hands off core dumps
systemd sets itself up to intercept core dumps, doing who knows what with
them (except consume loads of cpu).
Prevent this madness and set things back the way they were
# echo "kernel.core_pattern = core" > /etc/sysctl.d/50-coredump.conf
Prevent audit totally spamming dmesg
Just disable it by adding audit=0 to the kernel command line.
Get dmesg back under control
alias dmesg='dmesg -t -k --color=never'
to your ~/.bashrc
-t No timestamps
-k No systemd spam etc
--color=never Just good old black and white
Some fonts not showing up? Run
# fc-cache -f
to update the font cache.