07 Jan 2019
2 minutes read
FB2 SSH PortSSH port
Default SSH port 22 SSH was created as a solution to replace both file transfer protocol FTP (port 21) and remote access protocol telnet (port 23), so port 22 was a particularly fitting choice.
Unix Tutorial - technical guides and how-tos on Linux/Unix and macOS
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 …
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 …
03 Jan 2019
2 minutes read
FB4 Test TCP Connectivity With CurlTest TCP Connectivity With Curl
You probably know about curl command: it’s great for downloading web pages or files from a Unix command line. But …
02 Jan 2019
2 minutes read
ISO to USB in MacOS
Sandisk USB I’d like to follow up on my recent Create Bootable USB from ISO post for MacOS: seems I have missed an …
01 Jan 2019
1 minutes read
FB4 Happy New Year!Happy New Year!
I think 2019 is going to be my most productive Unix Tutorial year ever! Here are just some of the plans:
19 Dec 2018
4 minutes read
FB4 Apropos and Whatis CommandsApropos and Whatis Commands
As you know, each Unix/Linux distro comes with a massive set of man pages – helpful manuals for using pretty much every …
10 Dec 2018
3 minutes read
How To: 5 Ways to Check CentOS Version
Screenfetch running in CentOS 8 One of the very first questions a Linux user asks is about confirming the release (OS …
04 Dec 2018
5 minutes read
SSH Port Forwarding
SSH port forwarding is a feature of SSH protocol that allows client and server to forward additional network connections …
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 …
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 …