11 Feb 2021
1 minutes read
Patched Sudo Privilege Escalation Vulnerability CVE-2021-3156
A rather nasty sudo vulnerability has been making news for a couple of weeks now, apparently most of Unix and Unix-like …
sudo
03 Mar 2020
3 minutes read
NEVER Edit /Etc/Sudoers File Directly
Unix Tutorial But if you do have to edit /etc/sudoers, at least follow this advice to avoid locking yourself out.
14 Feb 2020
2 minutes read
Use Visudo to Check SUDO Config Syntax
syntax check with visudo -c I’m working on a longer post about editing sudoers with visudo or editing /etc/sudoers …
02 Sep 2019
1 minutes read
Sudo Meaning: What Does Sudo Mean?
sudo allows you to run a Unix command as a different user. Many beginner users are asking for meaning of the sudo …
02 Jul 2014
5 minutes read
How to Use Sudo
The visudo command is a safe and secure way of editing the /etc/sudoers file on UNIX and Linux systems. /etc/sudoers is …
13 Dec 2007
2 minutes read
Visudo Tutorial
Unix Tutorial visudo is a tool for safely updating the /etc/sudoers file, found in most Linux systems (Ubuntu for …
How to decrypt files with Ansible Vault
ansible-vault decrypt restores an encrypted file …
Just discovered the macOS footprint command
I’ve administered Linux systems for around 25 …
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 …