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@emschwartz
emschwartz / README.md
Last active March 18, 2026 09:17
The Most Popular Blogs of Hacker News in 2025

This is an OPML version of the HN Popularity Contest results for 2025, for importing into RSS feed readers.

Plug: if you want to find content related to your interests from thousands of obscure blogs and noisy sources like HN Newest, check out Scour. It's a free, personalized content feed I work on where you define your interests in your own words and it ranks content based on how closely related it is to those topics.

@backerman
backerman / profile-snippet-sshargcomplete.ps1
Last active November 5, 2025 14:34
Enable tab completion for ssh hostnames in PowerShell
using namespace System.Management.Automation
Register-ArgumentCompleter -CommandName ssh,scp,sftp -Native -ScriptBlock {
param($wordToComplete, $commandAst, $cursorPosition)
$knownHosts = Get-Content ${Env:HOMEPATH}\.ssh\known_hosts `
| ForEach-Object { ([string]$_).Split(' ')[0] } `
| ForEach-Object { $_.Split(',') } `
| Sort-Object -Unique
# For now just assume it's a hostname.
@yevrah
yevrah / Upgrade vim
Last active January 16, 2026 06:46
Update to Vim8 on Centos 7
################################################################################
# Method 1: Install using rpm packages (credit to DarkMukke)
#
rpm -Uvh http://mirror.ghettoforge.org/distributions/gf/gf-release-latest.gf.el7.noarch.rpm
rpm --import http://mirror.ghettoforge.org/distributions/gf/RPM-GPG-KEY-gf.el7
# WARNING: removing vim-minimal uninstalls `sudo` if you skip the second step
# make sure to at least run `yum install sudo`
yum -y remove vim-minimal vim-common vim-enhanced
@jdeathe
jdeathe / openssl-self-signed-san-certificate.md
Last active June 24, 2022 03:48
How to generate a self-signed SAN SSL/TLS certificate using openssl

How to generate a self-signed SAN SSL/TLS certificate using openssl

Generating a self-signed certificate is a common task and the command to generate one with openssl is well known and well documented. Generating a certificate that includes subjectAltName is not so straght forward however. The following example demonstrates how to generate a SAN certificate without making a permanent change to the openssl configuration.

Generate a list of all required DNS names, (Note: CN will be discarded).

$ export SAN="DNS:www.domain.localdomain,DNS:domain.localdomain"
@ryerh
ryerh / tmux-cheatsheet.markdown
Last active March 17, 2026 07:37 — forked from MohamedAlaa/tmux-cheatsheet.markdown
Tmux 快捷键 & 速查表 & 简明教程

注意：本文内容适用于 Tmux 2.3 及以上的版本，但是绝大部分的特性低版本也都适用，鼠标支持、VI 模式、插件管理在低版本可能会与本文不兼容。

Tmux 快捷键 & 速查表 & 简明教程

启动新会话：

tmux [new -s 会话名 -n 窗口名]

恢复会话：

@artemgordinskiy
artemgordinskiy / node-npm-in-docker.sh
Created December 11, 2015 14:00
Run Node/NPM in a Docker container
# For example, run "npm install"
docker run -v "$PWD":/usr/src/app -w /usr/src/app node:4 npm install
# This command creates a container (downloading one first if you don't have it locally), runs the command in a current directory and quits the container
# Great Success!
@jvkersch
jvkersch / ssh_auth_sock.md
Last active March 23, 2024 14:59
Updating SSH_AUTH_SOCK in an already established tmux session

I found this information somewhere on StackOverflow but I forgot exactly where. I'm paraphrasing what I learned here, for future reference.

SSH uses a Unix socket to communicate with other processes. The socket's path can be found by looking at the environment variable $SSH_AUTH_SOCK. When you re-connect to a tmux session that was started during a previous SSH session, this variable will contain the path of the previous SSH auth socket, and this will cause processes that try to connect to your authentication agent to fail. To fix this, we have to

  1. Create a symlink from the auth socket to a fixed path somewhere, so that we can refer to it later on. In ~/.ssh/rc, add
if test "$SSH_AUTH_SOCK"; then
	ln -sf $SSH_AUTH_SOCK ~/.ssh/ssh_auth_sock
fi
@laispace
laispace / git 设置和取消代理
Last active March 12, 2026 01:53
git config --global https.proxy http://127.0.0.1:1080
git config --global https.proxy https://127.0.0.1:1080
git config --global --unset http.proxy
git config --global --unset https.proxy
npm config delete proxy
@wikimatze
wikimatze / gist:9790374
Created March 26, 2014 18:43
Github Two-Factor Authentication Failed For HTTPS

I heard from GitHub Two-Factor Authentication](https://github.com/blog/1614-two-factor-authentication) nearly a couple of days ago when I was reading my RSS feed. I enabled it and couldn' push to any of my repositories anymore. Learn in this blog post how to fix it.

Two-Factor Authentication

"Is a process involving two stages to verify the identity of an entity trying to access services in a computer or in a network". Github solves this authentication with sending an SMS to a device which wants to push to their platform.

Enabling Two-Factor Authentication

@thomasfr
thomasfr / autossh.service
Last active June 19, 2025 05:38
Systemd service for autossh
[Unit]
Description=Keeps a tunnel to 'remote.example.com' open
After=network.target
[Service]
User=autossh
# -p [PORT]
# -l [user]
# -M 0 --> no monitoring
# -N Just open the connection and do nothing (not interactive)