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@ageis
ageis / YubiKey-GPG-SSH-guide.md
Last active November 30, 2025 16:23
Technical guide for using YubiKey series 4 for GPG and SSH

YubiKey 4 series GPG and SSH setup guide

Written for fairly adept technical users, preferably of Debian GNU/Linux, not for absolute beginners.

You'll probably be working with a single smartcard, so you'll want only one primary key (1. Sign & Certify) and two associated subkeys (2. Encrypt, 3. Authenticate). I've published a Bash function which automates this slightly special key generation process.

@hauntedhost
hauntedhost / vpn-ipsec-network-options.md
Created February 1, 2016 20:09
Private mesh network options
@nickjacob
nickjacob / systemd-prblm.service
Last active March 17, 2023 16:11
execute arbitrary bash code/variable substitution in systemd units
[Unit]
Description=Demonstrate Bash
[Service]
ExecStartPre=/usr/bin/bash -c "/usr/bin/systemctl set-environment MYVAR=$(( 2 + 2 ))"
ExecStart=/usr/bin/echo "2 + 2 = ${MYVAR}"
@mutewinter
mutewinter / Alfred 3 Workflows.md
Last active November 25, 2020 14:14
A list of Alfred 3 workflows I'm using.
@perusio
perusio / gist:2154235
Created March 21, 2012 23:47
High performance tuning of Nginx
## From a post on the ML, apropos this:
## http://lowlatencyweb.wordpress.com/2012/03/20/500000-requestssec-modern-http-servers-are-fast.
## For sysctl.conf
net.ipv4.tcp_slow_start_after_idle = 0
echo "2048 64512" > /proc/sys/net/ipv4/ip_local_port_range
echo "1" > /proc/sys/net/ipv4/tcp_tw_recycle
echo "1" > /proc/sys/net/ipv4/tcp_tw_reuse
@tsabat
tsabat / zsh.md
Last active October 10, 2025 00:44
Getting oh-my-zsh to work in Ubuntu