Postfix.org – Mail Server I’ve been decommissioning some old servers recently and this generated quite a bunch of monitoring alerts. So many, in fact, that I have maxed out the free Sendgrid plan I use for sending email alerts.
I have a tiny server in home office, it used to be a Window 8 based entertainment box but I reinstalled it with Ubuntu …
Homebrew is a great way to get open source software installed onto your MacOS system. Major version upgrade just got …
Docker There are many ways of migrating Docker containers to a different server, today I’ll show you one of the …
Thanks to the super busy January, this is actually the first Unix Tutorial digest of 2019! Lots of news and so many …
I had to confirm the most recently installed packages on a Red Hat system recently, and was plesantly surprised that …
Have only recently learned about one of the most elegant and coolect commands in my MacBook: you can use say command in …
SELinux If you’re using RedHat or CentOS Linux distros (or sporting a Fedora Linux desktop), you probably have …
netstat command is a mightly utility found in majority of Unix and Linux distributions. Among other things like showing …
tmux I’m a tmux user for most of my console sessions these days – both at work and at home.
When trying to run do-release-upgrade on an Ubuntu …
Quick note on filesystem resize on a typical …
macOS Tahoe is the upcoming major release of macOS …
BASH is my Linux shell of choice (it’s zsh on …
hey Unless you disable SIP, most of DTrace based …
I reliased one of my Raspberry Pi systems was …
Apple keeps shipping public betas of macOS Sequoia …
