26 Feb 2019
3 minutes read
FB4 How To: Remove Old Kernels in CentOSHow To: Remove Old Kernels in CentOS
For dedicated servers and virtual machines that you keep upgrading in-place, you will eventually reach the situation …
Advanced Topics
21 Feb 2019
3 minutes read
FB4 Bootable USB From ISO With EtcherBootable USB From ISO With Etcher
I have decided to try using Dell XPS 13 laptop in addition to my MacBook Pro 15. It is not a coincident that Dell XPS 13 …
19 Feb 2019
3 minutes read
FB4 How To: List Files With SELinux ContextsHow To: List Files With SELinux Contexts
When running a SELinux based setup, it might be useful to know how to quickly inspect files and directories to confirm …
15 Feb 2019
2 minutes read
FB4 Disable Portmapper in CentOS 7Disable Portmapper in CentOS 7
If you don’t have any other network services running on your Linux system, you probably don’t need …
08 Feb 2019
2 minutes read
FB4 Remove All Messages From Postfix QueueRemove All Messages From Postfix Queue
Postfix.org – Mail Server I’ve been decommissioning some old servers recently and this generated quite a …
24 Jan 2019
2 minutes read
FB4 SElinux: Advanced Sestatus UsageSElinux: Advanced Sestatus Usage
I learned something new today! Apparently, sestatus command can report security contexts of the key system files – …
22 Jan 2019
3 minutes read
FB4 How To: Generate SSH KeyHow 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
FB4 How To: Confirm Current Kernel Boot Command in LinuxHow 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 …
15 Jan 2019
1 minutes read
FB4 Pcs STONITHPcs STONITH
If you’ve never setup a cluster in RedHat/CentOS using pcs – I strongly suggest you give it a try! Lots of fun!
06 Jan 2019
4 minutes read
FB4 How to Use 7zipHow to Use 7zip
7zip is a powerful open-source archiver – software package for packing and unpacking files and directories into …
How to Resize Filesystem With Resize2fs
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 …
How-To: Upgrade Ubuntu 23.04 to 24.10
I reliased one of my Raspberry Pi systems was …
macOS Sequoia 15.0
Apple keeps shipping public betas of macOS Sequoia …
Video: Has This Worked Before?
Another video on my YouTube channel …