today's howtos
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OpenVPN as default gateway on OpenBSD
If you plan to use an OpenVPN tunnel to reach your default gateway, which would make the tun interface in the egress group, and use tun0 in your pf.conf which is loaded before OpenVPN starts?
Here are the few tips I use to solve the problems.
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How to Setup a Firewall with UFW on Ubuntu 20.04 - Linux Concept
Nowadays, a Firewall is an essential utility and property of any system for security; by default Ubuntu Operating system having a firewall configuration tool named UFW (Uncomplicated Firewall). UFW is a user-friendly front-end tool to manage iptables firewall rules. It provides you more straightforward methods to manage iptables as the name of this tool start from Uncomplicated.
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Install Ubuntu on a USB Hard Drive | Pen Drive Linux
How to Install Ubuntu on a USB hard drive using live media. Believe it or not, creating a completely Portable Ubuntu Installation on USB is a relatively simple process. As a matter of fact, it's almost as simple as a regular Ubuntu internal hard drive installation. Due to popular demand, we have decided to write a simple tutorial on the full Ubuntu USB hard drive installation procedure. So go grab an available external USB hard drive and a nice cold beverage and lets get started.
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Best Tools to Create a Bootable Linux USB Drive
Unlike Windows, Linux distributions require a third-party tool to create a bootable USB. It is particularly handy with modern PCs which have done away with the old DVD-drives. Also, installation DVDs were quite delicate and would scratch or in worst-case scenarios, break apart under stress. This guide covers some of the best tools that you can use to create a bootable Linux USB drive.
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5 new sudo features you need to know in 2020 | Opensource.com
When you want to perform an action on a POSIX system, one of the safest ways to do so is to use the sudo command. Unlike logging in as the root user and performing what could be a dangerous action, sudo grants any user designated as a "sudoer" by the sysadmin temporary permission to perform a normally restricted activity.
This system has helped keep Linux, Unix, and macOS systems safe from silly mistakes and malicious attacks for decades, and it is the default administrative mechanism on all major Linux distributions today.
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