Security News
Microsoft Azure customers' virtual machines running Ubuntu 18.04 have been taken offline by an ongoing outage caused by a faulty systemd update. Microsoft says in an incident report published on the Azure status page that these DNS issues only affect VMs running Ubuntu 18.04.
You don't want that, but how do you prevent such a reality? One way is to enable two-factor authentication on the server. How do you set up SSH 2FA on your Ubuntu Server? Let me show you.
Canonical has announced the general availability of version 22.04 of the Ubuntu Linux distribution, codenamed 'Jammy Jellyfish', which brings better hardware support and an improved security baseline. Ubuntu is the world's most popular Linux distribution for consumers.
Ubuntu has issued a batch of updates that cover the default as well as the AWS and KVM flavours for the current short-term release 21.10, both the original 5.04 and OEM 5.14 builds for the current 20.04 LTS release, as well as 18.04, and, surprisingly, even 16.04 and 14.04. While kernel releases trickle out all the time, the last two members of that list - 2016's Xenial Xerus and 2014's Trusty Tahr - emphasise that even very old releases in Extended Security Maintenance or ESM sometimes need a bit of TLC. It also might surprise some that multiple different Linux kernels are available for a single product release.
The CVE-2022-0185 vulnerability in Ubuntu is severe enough that Red Hat is also advising immediate patching. It affects RHEL as well as Ubuntu 20.04, 21.04 and 21.10 - and presumably other distros, too.
If you'd like a powerful firewall for your Ubuntu Server, but one that offers a fairly straightforward configuration, Jack Wallen thinks CSF might be the right tool for the job. Although Uncomplicated Firewall is an outstanding security service on Ubuntu Server, there might be times when you need more.
A local privilege escalation security vulnerability could allow attackers to gain root access on Ubuntu systems by exploiting a double-free memory corruption bug in GNOME's AccountsService component. The security flaw was accidentally spotted by GitHub security researcher Kevin Backhouse while testing an exploit demo for another AccountsService bug that also made it possible to escalate privileges to root on vulnerable devices.
The latest version of the world's most popular Linux distribution, Ubuntu 21.10, codenamed 'Impish Indy', has landed on Canonical's download channels. The 'Server' edition of Ubuntu 21.10 comes with 'needrestart' enabled by default, includes certified NVIDIA GPU drivers, and offers a 'minimal' installation option to accommodate IoT or container installations.
Jack Wallen walks you through the steps to join Ubuntu Desktop to Active Directory domains.
You can add an SSH tarpit to Ubuntu Server with the help of endlessh. Jack Wallen shows you how.