28 May 2014
2 minutes read
FB4 How To: Make IP Forwarding Permanent in LinuxHow To: Make IP Forwarding Permanent in Linux
While IP forwarding in Linux is disabled by default, as most people don’t need it, there may be various reasons …
How To
20 May 2014
2 minutes read
How-To: Ubuntu - Enable SSH
Secure Shell (SSH) allows secure communication between networked computers for such purposes as logging in to a remote …
04 Feb 2013
1 minutes read
FB4 How to Confirm Mac OS Version From Command LineHow to Confirm Mac OS Version From Command Line
Just a very quick tip today, I stumbled upon this command a while ago and think it may be handy for someone learning the …
25 Sep 2012
3 minutes read
FB4 How to Mount DMG Files From Command Line in Mac OSHow to Mount DMG Files From Command Line in Mac OS
DMG files are proprietary disk image files used for software distribution in Mac OS. Providiing both password …
28 Feb 2012
1 minutes read
FB4 How To: Use Yum Behind ProxyHow To: Use Yum Behind Proxy
I’ve got a few RedHat and CentOS VMs running on internal network of my server, and since updating them quite …
24 Jan 2012
3 minutes read
Passwordless SSH With Encrypted Homedir in Ubuntu
Quite recently I came across a very interesting issue: while configuring passwordless SSH (it’s public key based, …
02 Dec 2009
3 minutes read
FB4 How to Disable IPv6 in Red Hat LinuxHow to Disable IPv6 in Red Hat Linux
Since it may be a while before I’m ready to use the IPv6 on my systems, I’ve been disabling IPv6 on most …
12 Jun 2009
2 minutes read
FB4 How To: Using Return (Exit Status) Codes in Unix ShellsHow To: Using Return (Exit Status) Codes in Unix Shells
There are so many topics which I have never addressed on Unix Tutorial pages, I just can’t wait to share them with …
15 May 2009
5 minutes read
Ubuntu SSH: How to Enable Secure Shell in Ubuntu
SSH (Secure Shell) is possibly the best way to remotely access a Unix system – it’s very secure thanks to …
11 May 2009
2 minutes read
FB4 How to Confirm Disks Capacity in LinuxHow to Confirm Disks Capacity in Linux
show disk size in Unix is a very popular request visitors use to arrive at my Unix Tutorial pages. Since I never …
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 …