Traditionally I’ve been configuring OpenVPN in a scenario where each client would have a unique certificate. This requires a bit more time initially but is well worth it in terms of security.
Red Hat Ansible If you’re managing configuration with Puppet or Chef, chances are you’ve heard of Ansible as …
There are three ways to access the command line interface in Ubuntu, as on any Linux and UNIX distribution. One is …
If you need to change or add a passphrase to your existing SSH private key just use ssh-keygen, the same tool which …
Change Passphrase ssh-keygen -p If you need to change or add a passphrase to your existing SSH private key just use …
In a nutshell ssh-agent allows you to unlock your private SSH key once and add it to the agent so you can keep using it …
You can compare the contents of two directories by their md5 hashes, which could be useful when you want to make sure …
If you wish to see which ports are open on your Linux system, perhaps to check your configuration, you can use the nmap …
Since you’re reading this you’re probably already aware of what Shellshock is; a number of vulnerabilities …
Shellshock refers to a set of vulnerabilities discovered in late summer 2014 that affects Bash (Bourne again shell), a …
ansible-vault decrypt restores an encrypted file …
I’ve administered Linux systems for around 25 …
When trying to run do-release-upgrade on an Ubuntu …
Quick note on filesystem resize on a typical …
macOS Tahoe is the upcoming major release of macOS …
BASH is my Linux shell of choice (it’s zsh on …
hey Unless you disable SIP, most of DTrace based …
