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servercode/misc.txt
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2025-07-27 10:27:51 -05:00

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* 2 * * * sysbench --time=14400 cpu run
# OPEN SOURCE BENCHMARKS
speccpu, netperf, memtier_benchmark, aerospike, hpcc
sudo apt purge apport apport-gtk apport-retrace apport-symptoms
inxi -Fxxc0 | nc termbin.com 9999
sudo dnf environment list --available | grep desktop
sudo dnf install switchdesk switchdesk-gui
# sudo dnf install @kde-desktop-environment
dnf grouplist -v
dnf groupinstall "Fedora Workstation"
dnf groupinstall "Cinnamon Desktop"
systemctl set-default graphical.target
# With some desktop you may also need:
systemctl enable gdm.service
sudo dnf install switchdesk switchdesk-gui
sudo vi /etc/gdm3/daemon.conf
[security]
AllowRoot=True
sudo vi /etc/pam.d/gdm-password
# COMMENT OUT: # auth required pam_succeed_if.so user != root quiet_success
sudo apt remove gnome-keyring
sudo apt autoclean && sudo apt autoremove
sudo apt install gvfs-backends
sudo apt reinstall gvfs-backends
systemctl list-unit-files | grep masked
sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
tar zcvf email-backup.tar.gz /home/privacy/.thunderbird/
systemctl status display-manager.service
sudo dpkg-reconfigure gdm3
gunzip linux-brprinter-installer-2.2.3-1.gz
cd linux-brprinter-installer-2.2.3-1
chmod +x linux*
sudo ./linux-brprinter-installer-2.2.3-1
sudo dpkg --configure -a
sudo cp -a /boot
sudo cp -a /boot .
sudo update-initramfs -ut -b .
sudo dpkg --purge raspi-firmware
sudo dpkg --configure -a
sudo apt remove initramfs-tools
sudo apt install itramfs-tools
sudo apt install initramfs-tools
sudo dpkg --configure -a
shutdown -r now
sudo apt-get install pavucontrol
sudo apt-get install pulseaudio-equalizer
sudo apt-get install alsamixer
sudo alsactl init
pacmd list-cards
sudo pacmd list-cards
sudo apt-get install alsa-tools-gui
---------------------------------------------
# sudo systemctl restart networking
# Frozen SSH afterwards do this:
<enter>
~
.
---------------------------------------------
sudo dnf install akmod-nvidia
sudo dnf install xorg-x11-drv-nvidia-cuda
---------------------------------------------
source /etc/profile.d/bash_completion.sh
cat >> ~/.inputrc <<'EOF'
"\e[A": history-search-backward
"\e[B": history-search-forward
EOF
bind -f ~/.inputrc
---------------------------------------------
# FEDORA fix broken packages
sudo rpm -Va
rpm --rebuilddb
sudo dnf upgrade -b
sudo dnf --refresh reinstall package_name
sudo yum reinstall \*
sudo yum update --skip-broken
---------------------------------------------
sudo modprobe zram
sudo zramctl -s 128G -a zstd
sudo mkfs.ext4 -N 33554432 -m 0 /dev/zram0
sudo mount -o discard /dev/zram0 build/
sudo chown -R myuser build/
---------------------------------------------
Recover the Root Password
If you need to recover credentials, use this method to gaining access to the instance.
Reboot the system.
Interrupt the grub2 menu by pressing "e" to edit when prompted with the grub menu.
Move the cursor to the end of the line that specifies the kernel (vmlinuz). You may want to remove all other consoles other than TTY0, however, this step may not be necessary for your environment.
Append rd.break (no quotes), which will break the boot process just before the control is handed from initramfs to the actual system.
Ctrl+x to boot.
A root shell is presented with the root filesystem mounted in read-only mode on /sysroot.
Remount it with write privileges as /sysroot.
# mount -oremount,rw /sysroot
Switch to a chroot jail.
# chroot /sysroot
Change the password for the desired user.
# passwd example-username
If you use SELinux, you should consider re-labeling all files before continuing the boot process. Skip this part if you don't use SELinux.
# touch /.autorelabel
Use the exit to exit the chroot jail. Use exit a second time, and the system will cleanly boot from the point we interrupted it.