wiki.kalen.pw development:linux

Access Control Lists

Anonymous (anonymous@undisclosed.example.com) — 2021-06-29T15:05:36+00:00

Access Control Lists A second layer of permissions beyond the standard ugo+rwx. Denoted with a + at the end of ls -l ---------- Configuring # get permissions sudo getfacl directory/or_file_name # set permissions sudo setfacl -m g:group_name:rwx ./directory/or_file_name

Applications

Anonymous (anonymous@undisclosed.example.com) — 2021-09-16T10:45:14+00:00

Applications Application specific documentation ---------- * GNOME Games * Terminator ----------

Certificates

Anonymous (anonymous@undisclosed.example.com) — 2021-06-29T15:05:43+00:00

Certificates ---------- Hash Verification Useful for checking validity of certificates. Usually when done through something that isn't Let's Encrypt # used to check the private key (usually ends with .key) openssl rsa -noout -modulus -in example.com.key | openssl md5 # used to check the certificate (usually ends with .crt) openssl x509 -noout -modulus -in example.crt | openssl md5

.desktop files

Anonymous (anonymous@undisclosed.example.com) — 2021-06-29T15:05:52+00:00

.desktop files Let's you have icons and appear in various search programs ---------- Setup Put custom file in ~/.local/share/applications. Existing files in /usr/share/applications Example file [Desktop Entry] Name=Poweroff Exec=poweroff Icon=/home/kalenpw/.icons/Custom/poweroff.png Type=Application Categories=GTK;GNOME;

Fedora

Anonymous (anonymous@undisclosed.example.com) — 2023-04-08T10:14:44+00:00

Fedora ---------- DisplayLink First time install * Download DisplayLink Ubuntu Drivers * * sudo dnf -y upgrade --refresh * Reboot to ensure latest kernel * sudo dnf -y install dkms libdrm-devel openssl * Reboot again to ensure updates

File Management

Anonymous (anonymous@undisclosed.example.com) — 2021-06-29T15:06:56+00:00

File Management Managing files with common CLI tools rsync, mv, cp, scp etc. ---------- cp # trailing slash affects whether source gets copied or not cp -r ./old_dir ./new_dir # will copy old_dir into new_dir cp -r ./old_dir/ ./new_dir # will copy everyhing inside old_dir to new_dir

Fish

Anonymous (anonymous@undisclosed.example.com) — 2021-06-29T15:06:35+00:00

Fish I can't remember why now, but at some point I tried fish and zsh on Mac and found fish works better there. ---------- Aliases Aliases are created by simply creating a file in ~/.config/fish/functins Example mkcd function mkcd mkdir -p $argv and cd $argv end

GNOME

Anonymous (anonymous@undisclosed.example.com) — 2021-09-29T18:50:36+00:00

GNOME ---------- Useful extensions * Dash to Dock * Hide Activities Button * Transparent Shell * User Themes - Let's you set shell theme ---------- Switching Ubuntu to default GNOME # option at login to use GNOME sudo apt install gnome-session # change login screen to use GNOME css sudo update-alternatives --config gdm3-theme.gresource # If some flatpak apps aren't using dark theme flatpak install adwaita-dark

Matrix & Riot.im

Anonymous (anonymous@undisclosed.example.com) — 2021-06-29T15:07:10+00:00

Matrix & Riot.im Self hosted federated chat system ---------- Installation mkdir synapse cd synapse virtualenv -p python3 ./env source ./env/bin/activate pip install --upgrade pip pip install --upgrade setuptools pip install matrix-synapse python -m synapse.app.homeserver --server-name chat.kalenpw.com --config-path homeserver.yaml --generate-config --report-stats=no

Misc Commands

Anonymous (anonymous@undisclosed.example.com) — 2023-04-12T19:58:49+00:00

Misc Commands Various commands that are handy I tend to forget ---------- # get name for compton xprop WM_CLASS # and clicking the window. # sed with regex # mac find . -type f -name "*.txt" -print0 | xargs -0 sed -i "" -E 's!(.*)!\3!g' # linux find . -type f -name "*.txt" -print0 | xargs -0 sed -i -E 's!(.*)!\3!g' # set vol…

Mounting Drives

Anonymous (anonymous@undisclosed.example.com) — 2023-04-08T10:19:37+00:00

Mounting Drives ---------- Auto mount on boot To get UUID of drives sudo blkid Configured in /etc/fstab example config: /dev/disk/by-uuid/f3421b8c-7370-4f60-9db6-76cccf8c5b9b / ext4 defaults 0 0 UUID=fdaa90ad-0a40-4425-a8c3-88a8bd689d66 /media/kalenpw/SSD1000 auto defaults 0 0 UUID=976d8f12-cce8-4a11-bf1c-2572c11fddcb /media/kalenpw/HDD500 auto defaults 0 0 UUID=6b89d441-e62c-4cdd-b298-6b9619dc07e0 /media/kalenpw/HDD1000 auto defaults 0 0

Samba

Anonymous (anonymous@undisclosed.example.com) — 2021-06-29T15:07:54+00:00

Samba Used to share files across a network ---------- Config located at /etc/samba/smb.conf # name in brackets is what shows in file explorer [Files] path = /media/kalenpw/Files valid users = kalenpw read only = no writable = yes [Music] path = /media/kalenpw/Music valid users = kalenpw read only = no writable = yes

Screen

Anonymous (anonymous@undisclosed.example.com) — 2021-11-13T19:06:54+00:00

Screen ---------- # create a named session screen -s SessionName # attach screen -r SessionName #detach ctrl+a d

SELinux

Anonymous (anonymous@undisclosed.example.com) — 2021-06-29T15:09:39+00:00

SELinux Security-Enhanced Linux. Can be the reason why a file you appear to have permissions for is unavailable ---------- Commands # check if selinux is enabled getenforce # list selinux permissions ls -la --context # set permissions chcon filename

Settings Tweaks

Anonymous (anonymous@undisclosed.example.com) — 2021-06-29T15:10:10+00:00

Settings Tweaks * Super + Arrow as Home/End

Linux

Anonymous (anonymous@undisclosed.example.com) — 2023-04-07T12:24:36+00:00

Linux * ACL - Access Control List * Applications * Certificates * .desktop files * Fedora * Fish * File Management - rsync, mv, cp etc * GNOME * Matrix + Riot * Misc Commands * Mounting Drives * Samba * Screen * SELinux * Settings Tweaks * Systemd * Themeing * Torrent

Systemd

Anonymous (anonymous@undisclosed.example.com) — 2021-08-03T13:23:57+00:00

Systemd * Create Service * systemctl

Themeing

Anonymous (anonymous@undisclosed.example.com) — 2023-04-08T10:21:49+00:00

Themeing Dated, but here for posterity ---------- GTK Config file: ~/.config/gtk-X.Y/settings.ini [Settings] gtk-theme-name=Equilux gtk-icon-theme-name=Ultra-Flat gtk-font-name=Sans 10 gtk-cursor-theme-name=DMZ-Black gtk-cursor-theme-size=0 gtk-toolbar-style=GTK_TOOLBAR_BOTH gtk-toolbar-icon-size=GTK_ICON_SIZE_LARGE_TOOLBAR gtk-button-images=1 gtk-menu-images=1 gtk-enable-event-sounds=1 gtk-enable-input-feedback-sounds=1 gtk-xft-antialias=1 gtk-xft-hi…

Torrent

Anonymous (anonymous@undisclosed.example.com) — 2021-06-29T15:12:10+00:00

Torrent ---------- Creating a .torrent Rip files from CD # does both flac and 320kbps mp3 at same time abcde -o 'flac:-8,mp3:-b 320' // todo script to extract the mp3 and flac Create the .torrent imdl torrent create --private --source RED --announce https://flacsfor.me/57a49359d288fce48fbc777db83fdb2d/announce --input /media/kalenpw/HDD1000/Seedbox/Dylan_Owen-2009-How_to_Stay_Young-flac/ --output /media/kalenpw/HDD1000/Seedbox/Dylan_Owen-2009-How_to_Stay_Young-flac.torrent