Bash Prompt

Everyone knows how to generate a new SSH key: ssh-keygen -t ed25519 (you really should be using ed25519 if your environment supports it).

There are lots of terminal based real-time system reporting tools such as glances and htop that are prettier than classic top.

I use a lot of virtual machines from a number of providers.

When you copy a file from one Linux server to another you’re first choice will be SSH.

Everyone knows, or should know, that typing CTRL+R on the command line and typing something will perform a reverse search through your command history.

Do you hate getting Pinterest results when you’re using Google Images?

I run a NextCloud instance and one of the little paper cuts that bug me is that I can’t create a custom link to a publicly accessible folder.

It’s a very common task to need to download a file on the command line of a remote server.

Copying lots of small files from one Linux host to another can take a long time.

I was refering the the systemctl man page checking on systemctl status when I saw this: status [PATTERN...

Whenever I’ve got a lot of data to transfer I usually kick off the rsync or scp with the default SSH settings and then, after an hour or so, wonder if I could have sped things up with a different cipher.

SSH is the default method for systems administrators to log into remote Linux systems.

Load balancing with high availability can be tough to set up.

Load balancing with high availability can be tough to set up.

Load balancing with high availability can be tough to set up.

Web servers have been able to compress the content they serve for quite a while now.

Web servers have been able to compress the content they serve for quite a while now.

Web servers have been able to compress the content they serve for quite a while now.

Web servers have been able to compress the content they serve for quite a while now.

Man pages are the canonical source of information for all the commands that you run on your Linux command line.

Linux man pages remain the best source of information for using Linux command line tools.

Brotli is a high-performance, lossless compression algorithm developed and maintained by Google.

Brotli is a high-performance, lossless compression algorithm developed and maintained by Google.

Brotli is a high-performance, lossless compression algorithm developed and maintained by Google.

I recently had to find which repository held the nginx package so I could enable the corresponding deb-src line in order to build the source code with apt.

You probably didn’t know but you can trivially open a network socket and communicate with a host by writing to: /dev/<PROTO>/<HOST>/<PORT> The protocol can be UDP or TCP and the host any internet connect machine including localhost.

All rechargeable batteries degrade over time.

GPG is the fist utilty that most admins think of when they need to encrypt some data at reast.

Encrypting data at rest is a modern requirement that occurs all the time.

The toughest part of deciding to mine cryptocurrency is trying to work out if the system you have access can make any profit.

Introduction Before you can start mining cryptocurrency you need a GPU rocking rig to do all the hard work.

You’ve got a computer, it’s running Linux and you want to try mining some Monero.

So you’ve got a system that you want to try mining some Litecoin.

So you’ve got a system that you want to try mining some Dodgecoins (DOGE).

So you’ve got a system that you want to try mining some BitcoinCash (BCH).

So you’ve got a system that you want to try mining some Bitcoins (BTC).

Once you have decided that you want to start mining cryptocurrency you need to work out how fast your mining rig crunch work blocks and earn you crypto coins.

VPN’s are great.

Have you never needed to time something and only had access to a terminal?

SSH’ing into a server takes a few seconds.

A common problem when you’re writing bash scripts or creating one liners is to get something from the end of some text.

Sometimes, especially with huge log files, you need to delete all the data in a file without getting rid of it.

Getting a concise and informative list of all the hardware components on your system can be hard.

If you have a website on your Debian 10 server you are probably thinking of how you can protect it.

If you have followed my guide for enabling brotli compression with NGINX then your server is already serving your content with brotli compression.

Whenever you visit a website you will almost certainly recieve compressed .html, .css, .js and .xml files.

I recently needed to run a GUI application on a remote, headless Linux server.

I recently needed to run an application that was GUI only on a remote, headless server.

I’ve written about GNU Parallel in a previous post because it’s a really amazing tool.

A task that comes up often enough that you need to memorize a command and it’s options is to find out what’s listening on a port.