zjx20

enable bbrplus on debian 9 and above

git clone https://github.com/Xaster/bbrplus-debian.git
cd bbrplus-debian
# run as root
make && make install

sysctl -w net.core.default_qdisc=fq

sysctl -w net.ipv4.tcp_congestion_control=bbrplus

ssh-proxy-dialer

This program adds proxy support to ssh. Once installed, ssh will obey the ssh_proxy environment variable (or all_proxy as a fallback) and will try to connect to the server through that proxy. Example:

export ssh_proxy="socks5://10.139.2.1:8066"
ssh example.com  # will connect through SOCKS5 proxy

Auto-starting VirtualBox VMs on OS X

After finding a lot of other posts on the topic that didn't work out for me this one did the trick so I'm reposting for my own sense of self preservation.

Link to original article.

Copy the Virtualbox autostart plist template file to your system's LaunchDaemons folder.

sudo cp \

/Applications/VirtualBox.app/Contents/MacOS/org.virtualbox.vboxautostart.plist \

	# usage: multi ssh the-host{0,1,2}

	function multi {
	cmd=$1
	shift

	if [ -z "$TMUX" ]; then
	session="multi-${cmd}-$(head -c 4 /dev/urandom \| base64 \| tr '/+' '_-' \| tr -d '=')"
	tmux new -d -s "${session}"
	else

	#!/bin/bash

	# brew install jq
	# brew install qrencode

	config_file=v2rayx*.json
	rss_file=rss.txt

	cat $config_file \| \
	jq --raw-output '

	#!/usr/bin/env python
	"""
	xsync.py by zjx20
	http://github.com/zjx20/xsync/

	This script will watch a local directory and on change will
	sync to a remote directory. The script can be easily modified
	to do whatever you want on a change event.

	requires: pip install 'watchdog==0.8.3'

	/*
	* Gmux driver for Apple laptops
	*
	* Copyright (C) Canonical Ltd. <seth.forshee@canonical.com>
	* Copyright (C) 2010-2012 Andreas Heider <andreas@meetr.de>
	* Copyright (C) 2015 Lukas Wunner <lukas@wunner.de>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.

	wget https://github.com/xtaci/kcptun/releases/download/v20170525/kcptun-linux-amd64-20170525.tar.gz
	tar xvf kcptun-linux-amd64-20170525.tar.gz
	sudo mv server_linux_amd64 /usr/local/bin/kcptun_server
	sudo mv client_linux_amd64 /usr/local/bin/kcptun_client
	sudo mkdir -p /etc/kcptun

	sudo bash -c "cat <<EOT > /etc/kcptun/server_conf.json
	{
	\"listen\": \":4321\",
	\"target\": \"127.0.0.1:8421\",

	# should install aria2c from latest source
	# requirements: sudo apt install libgnutls-dev nettle-dev libgmp-dev libssh2-1-dev libc-ares-dev libxml2-dev zlib1g-dev libsqlite3-dev pkg-config libcppunit-dev autoconf automake autotools-dev autopoint libtool
	#sudo apt-get install -y aria2

	sudo useradd aria2
	sudo mkdir /aria2
	sudo mkdir /aria2/dl
	sudo mkdir /aria2/log
	sudo touch /aria2/aria2.session
	sudo bash -c "cat <<EOT > /aria2/aria2.conf

	#!/bin/bash

	# Usage:
	# 1. save this gist to some where
	# 2. update your ssh command, like:
	# /path/to/ssh-agent-for-github.sh ssh -A user@your-server
	# 3. you should able to access github with your ssh key now, try "ssh -T [email protected]" to confirm it

	# NOTICE: you may want to change this value!
	GITHUB_SSH_KEY=~/.ssh/my_github_rsa