1. It is suggested that you use Python modules or Stirling-PDF instead of pdftk to manipulating PDFs for several reasons. First, even though pdftk is a great command-line tool, it is hard to remember its syntax. On the contratry, Python code is easy to read and understand (even though it is …

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

You can expose a local service to public using ngrok. Follow instructions in the official documentation of ngrok to setup ngrok.

1. Install ngrok.

   sudo snap install ngrok
   

2. Login to ngrok.com to identify your ngrok token.

3. Connect your account following instructions.

   ngrok config add-authtoken your_token
   

4. Start a http tunnel forwarding …

Installation

Ubuntu

wajig install proxychains4

Mac

brew install proxychains-ng

Notice that the proxychains-ng installed using Homebrew on Mac does not work well right now (as of 2019-03-07). An alternative way is to use proxychains via Docker on Mac. The Docker image dclong/jupyterhub-ds has proxychains (NOT proxychains-ng) installed.

Syntax

proxychains4 …

1. The StackOverflow discussion What's ssh port forwarding and what's the difference between ssh local and remote port forwarding [duplicate] has a good visual comparison/explanation of the difference between the ssh -L (-L stands for local) and ssh -R (-R stands for remote).

2. sshtunnel is a Python implementation of SSH …