14 May 2021
2 minutes read
NO_ZERO_IN_DATE With MySQL 5.7
MySQL I’m going through some old notes and found this little gem that really confused me last time I was migrating …
Troubleshooting
29 Feb 2020
1 minutes read
FB4 Log Fail2ban Messages to SyslogLog Fail2ban Messages to Syslog
With quite a few servers accepting SSH connections and protecting themselves using fail2ban, you very quickly recognize …
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, …
17 Jan 2020
5 minutes read
FB4 DEBUG: Cron Keeps Piling Up in MacOSDEBUG: Cron Keeps Piling Up in MacOS
So, long story… After upgrading to macOS Catalina my years-old automount.sh script running via cron stopped working. …
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 …
14 Sep 2019
1 minutes read
FB4 OpenMediaVault Default LoginOpenMediaVault Default Login
With Debian 10 Buster release out of the way, next major release of OpenMediaVault – OMV5 – is still on track for …
08 Aug 2019
3 minutes read
FB4 5 Ways to Use Nslookup5 Ways to Use Nslookup
Even after a few years of blogging I still manage to find must-have and must-know commands that I barely mentioned here.
07 Aug 2019
5 minutes read
FB4 Advice: Safely Removing a File or Directory in UnixAdvice: Safely Removing a File or Directory in Unix
Removing files and directories is a very common task, so in some environments support engineers or automation scripts …
17 Jul 2019
2 minutes read
FB4 Free Up Reserved Space in FilesystemsFree Up Reserved Space in Filesystems
You’re probably familiar with tune2fs command, it’s great for reporting filesystem layout and configuration …
06 Jul 2019
2 minutes read
FB4 Card Reader Issues in Ubuntu 19.04 on Dell XPS 13 9380Card Reader Issues in Ubuntu 19.04 on Dell XPS 13 9380
It appears there’s a long-standing malfunction of various microSD card readers running Linux. In my particular …
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 …