Download the Database Download the csv data, and separate the ipv4 data from the ipv6. 1curl -Lo ips.zip 'https://www.kaggle.com/api/v1/datasets/download/ipinfo/ipinfo-country-asn' 2unzip -p ips.zip country_asn.csv | csv2rec | recsel -e "start_ip ~ '.'" > ipv4.rec 3unzip -p ips.zip country_asn.csv | csv2rec | recsel …

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Intro This is a basic Linux firewall program. Look at your firewalls: 1iptables -L We see the output of input, output and forwarding rules. Forward I don't need any forwarding, so I'm going to drop all forwarding: 1iptables -P FORWARD DROP Input Let's 'A'dd, or 'A'ppend a rule with -A. Let's drop all input from a …

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Jenkins on Void Jenkins is janky. Start Start the service file. 1su root 2ln -s /etc/sv/jenkins /var/service 3sv start jenkins Then visit the web interface with $BROWSER localhost:8080. If it's not working, try running the command from the run file the first time: 1chpst -u jenkins java -jar /opt/jenkins/jenkins.war …

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See a running log of all system messages: 1journalctl -f Or just one user: 1journalctl --user -f Or just one unit (sshd): 1journalctl -f -u sshd Find errors since November 1journalctl --since=2018-11-01 --grep="EXT4-fs error" Limit size to 2G. 1journalctl --vacuum-size=2G Log the fact that you've installed your own …

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asciiquarium cbonsai -lim "$(fortune)" 1cow=$(cowsay -l | sort -R | head -1) 2fortune -s | figlet | cowsay -nf $cow | lolcat Watch the Collatz Conjecture collapse: 1x="$(du -sc ~/.cache | tr -d '[:alpha:]' | tail -1)" 2until [ "$x" -eq "1" ]; do 3 test "$(( x % 2 ))" -eq 0 && x=$(( x / 2 )) || \ 4 x=$(( x * 3 + 1 )) 5 …

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Kernel modules live in lib/modules/$(uname -r) Change Load them with 1modprobe ath9k Or remove one with 1modprove uvcvideo The PC's irritating speaker beep can be really annoying. Disable it with: 1modprobe -r pcspeaker Permanently disable a module by blacklisting it in /etc/modprobe.d: 1echo 'blacklist pcspkr' > …

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System-Wide Capslock and Escape Swap This works everywhere, including in a bare-ass tty. Select a keymap, and create a new custom map. 1su root 2ls /usr/share/kbd/keymaps/i386/qwerty/ 3 4basemap=/usr/share/kbd/keymaps/i386/qwerty/pl1.map.gz 5newmap=/usr/share/kbd/keymaps/custom.map.gz 6 7gunzip -c $basemap | \ 8 sed …

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Get the basic config: 1mkdir ~/.config/khard 1cp /usr/share/doc/khard/examples/khard/khard.conf.example ~/.config/khard.conf Short list 1khard list Longer list 1khard show Show from addressbook 'work' 1khard list -a work Make a new contact in address book 'family' 1khard new -a family 1khard edit grampa 1khard remove …

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If you want to kill a program in a graphical environment, open a terminal and type: Graphical Programs 1xkill Then click on the application which you want to kill. All Programs To kill a program, find it with: 1pgrep discord This will give you the UUID, e.g. 19643. Kill the program with: 1kill 19643 Types of Kill To …

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Warm Up Deep breath. Cup of tea. Remove the old LaTeX junk you've installed. Search for 'texlive' or 'latex' in your package manager's installed files. Find tlmgr in your package manager. tlmgr The LaTeX Package manager is known as tlmgr, and often resides in /opt/texlive/${YEAR}/bin/x86_64-linux/tlmgr. Double-check …

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