Network World

MARCH 24, 2025

Over the years, World Backup Day has gained recognition, and, as someone who spent over 30 years as a Unix/Linux sysadmin and data security professional, I can say that very few if any IT departments wait for March 31 to review and evaluate their system and data reliability.

Backup 396

Backup Firewall Linux Data 396

Linux Academy

APRIL 8, 2019

It also provides a handy browser plugin to fill in credentials for me, once I’ve authenticated to the plugin. Multi-factor authentication (MFA). Now, on to our second point for today: multi-factor authentication (MFA). Now, on to our second point for today: multi-factor authentication (MFA). Where to use MFA.

Authentication 68

Authentication Security Firewall Backup 68

Linux Academy

FEBRUARY 13, 2019

Run firewall-cmd commands on both nodes, and allow traffic for Pacemaker (TCP ports 2224, 3121, 21064, and UDP port 5405): sudo firewall-cmd --permanent --add-service=high-availability. sudo firewall-cmd --reload. On node1 , authenticate as the hacluster user: sudo pcs cluster auth NODE1 NODE2.

Firewall 60

Firewall Resources Linux Authentication 60

Linux Academy

NOVEMBER 6, 2019

This November at Linux Academy, we have loads of new content coming your way! To all of our learners who may know someone who wants to learn more about the cloud or Linux, but they have been on the fence about signing up for a free community edition account, then tell them that right now is a great time for them to sign up!

Linux 16

Linux Systems Administration Cloud Google 16

Linux Academy

MAY 31, 2019

For network devices, we should consider using RADIUS/TACACS+ for authentication purposes, not a shared user account. Ansible can help automate the backup, and you can learn more in this month’s how-to video that covers using Ansible to back up a Cisco ASA firewall. Network Device Configurations.

Security 92

Security Backup Linux Operating Systems 92

Linux Academy

JUNE 26, 2019

The Linux Audit system is a great solution. Finally, use the Pluggable Authentication Module (PAM) to set password requirements and lock out users with too many failed logins. Your security team can use the Linux Unified Key Setup (LUKS) to encrypt and decrypt physical disks to keep data secure when not in use. Disk Encryption.

Security 60

Security Linux Policies Meeting 60

Scott Lowe

JANUARY 15, 2021

This article by Joshua Fox outlines how and when to use each of the various types of firewalls offered by AWS. The popular open source cryptography library known as Bouncy Castle has uncovered a severe authentication bypass vulnerability. Linux may be coming to the Apple M1 chip. More details are available in this article.

Linux 60

Linux Firewall Open Source Vmware 60