08 Feb 2020
4 minutes read
Host Key Verification Failed
When reinstalling servers with new versions of operating system or simply reprovisioning VMs under the same hostname, …
ssh
10 Jan 2020
4 minutes read
FB4 How To: Use Fail2ban to Protect SSHHow To: Use Fail2ban to Protect SSH
I have a number of servers, including a few on the home office network, that accept SSH connections. Even though they …
21 Nov 2019
2 minutes read
FB4 Check Config Before Restarting SSH DaemonCheck Config Before Restarting SSH Daemon
Super quick advice today, but one of them pearls of experience that now and then saves your day. Learn how to check and …
19 Oct 2019
2 minutes read
FB4 Ubuntu 19.10Ubuntu 19.10
Ubuntu 19.10 was released on October 17th, which means it's time to upgrade Ubuntu on my Dell XPS laptop. Please …
19 Aug 2019
3 minutes read
FB4 Deploy Your SSH Key to Remote ServerDeploy Your SSH Key to Remote Server
One of the greatest improvements introduced by the SSH protocol is key-based authentication – meaning your client and …
24 May 2019
3 minutes read
FB4 Test SSHd Config on a Different SSH PortTest SSHd Config on a Different SSH Port
Sometimes you need to tweak your SSH daemon on an important system and you just don’t know if particular settings …
08 Mar 2019
2 minutes read
FB4 Get X11 Forwarding in MacOS High SierraGet X11 Forwarding in MacOS High Sierra
I needed to forward X11 output from one of my Linux servers recently to run virt-manager (manager for virtual machines …
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 …
Recommended
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 …
Homelab: Mac Pro 2013 32GB
Did I mention that I have recently purchased the …