I use Kali Linux alongside my Windows in my Laptop (yes I do use Windows and No thanks for the incoming sarcasms)! So when I start my Laptop, I get Kali Linux, Windows and Linux Mint as the 3 options. Kali Linux being the GRUB 1st choice it counts down …
Read More »Check download speed from Linux terminal
Lets say you are logged into a headless server (command line only) and you get a call about slow internet performance across network. Now of course there might be hundreds of reasons for slowness but you managed to narrow it down to the correction between your Gateway proxy and Upper …
Read More »How to disable IPv6 in Linux?
Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communications protocol that provides an identification and location system for computers on networks and routes traffic across the Internet. IPv6 was developed by the Internet Engineering Task Force (IETF) to deal with the long-anticipated …
Read More »Linux file system hierarchy v2.0
What is a file in Linux? What is file system in Linux? Where are all the configuration files? Where do I keep my downloaded applications? Is there really a filesystem standard structure in Linux? Well, the above image explains Linux file system hierarchy in a very simple and non-complex way. It's very useful when you're looking for a configuration file or a binary file. I've added some explanation and examples below, but that's TL;DR.
Read More »Generating self-signed x509 certificate with 2048-bit key and sign with sha256 hash using OpenSSL
With Google, Microsoft and every major technological giants sunsetting sha-1 due to it’s vulnerability, sha256 is the new standard. It seems to be an issue almost all Infrastructure Administrators are facing right now. Those who are using managed PKI console, it’s very easy and straight forward and the signing authority …
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