08 Feb 2019
2 minutes read
Remove All Messages From Postfix Queue
Postfix.org – Mail Server I’ve been decommissioning some old servers recently and this generated quite a …
How To
23 Jan 2019
2 minutes read
Unix Diff
diff is a mightly command line tool found in most of Unix and Unix-like operating systems. diff helps you to find …
22 Jan 2019
3 minutes read
How To: Generate SSH Key
SSH is such an integral part of everyday Linux/Unix life now, that it makes sense to use it for as many remote access …
20 Jan 2019
1 minutes read
How To: Confirm Current Kernel Boot Command in Linux
For those of you using GRUB boot loader, there’s a very cool way of confirming what boot parameters your boot …
16 Jan 2019
3 minutes read
How To: Restart MySQL
If you’re hosting a website using the popular LAMP stack (Linux/Apache/MySQL/PHP), you’re going to have your …
14 Jan 2019
3 minutes read
How To: Mount ISO Image in Linux
Did you know that most of the DVDs and CDs have the same filesystem type? Regardless of the actual OS you’re …
13 Jan 2019
3 minutes read
Disable a Startup of Service in Ubuntu
If for whatever reason you stop using a certain service in your Ubuntu install and would like to disable automatic …
07 Jan 2019
2 minutes read
SSH Port
Default SSH port 22 SSH was created as a solution to replace both file transfer protocol FTP (port 21) and remote access …
05 Jan 2019
3 minutes read
How To: Test Disk I/O With Dd
Screen Shot 2019-01-05 at 17.29.36.png dd command, that is pretty much guaranteed to be pre-installed on your Linux or …
04 Jan 2019
1 minutes read
VirtualBox 6.0
Turns out, Virtual Box 6.0 was released on December 18th, 2018. Looking at the release notes I have found the following …
How to decrypt files with Ansible Vault
ansible-vault decrypt restores an encrypted file …
Just discovered the macOS footprint command
I’ve administered Linux systems for around 25 …
How to Fix Ubuntu Packages Held Back
When trying to run do-release-upgrade on an Ubuntu …
How To Resize Filesystem with resize2fs
Quick note on filesystem resize on a typical …
macOS Tahoe
macOS Tahoe is the upcoming major release of macOS …
Centralized Bash history with timestamps
BASH is my Linux shell of choice (it’s zsh on …
Inspect filesystem operations with fs_usage in macOS
hey Unless you disable SIP, most of DTrace based …