So I bought a Yubikey, now what? Yubikeys are small usb security keys that can be used in various ways to improve the day to day workflow from the security point of view. I recently got one and started exploring and everything you can do with Yubikey 4 on a Linux machine. First and most simple usage of Yubikeys are for 2nd factor authentication of several different websites like Github, Google etc.

How does traceroute work? traceroute is a tool that people often use to determine the path of a packet as it starts from your machine to your destination server. On Ubuntu systems you can install it using the following command: $ sudo apt install traceroute Then you can use it to trace the route back to let’s say this server (asynchronous.in) : $ traceroute asynchronous.in traceroute to asynchronous.in (104.24.120.93), 30 hops max, 60 byte packets 1 10.

WeeChat + Nginx I talked before about different solutions for persistent IRC and how I settled on using WeeChat. This post is about how I use the relay feature in WeeChat to interact with it remotely. WeeChat has a remote user protocol called as relay protocol that people can use to connect WeeChat clients to remote running instances of it. It is helpful when you want to run WeeChat on a remote server and connect using clients from various different places.