Security News
A security researcher released exploit code for a high-severity vulnerability in Linux kernel eBPF that can give an attacker increased privileges on Ubuntu machines. eBPF is a technology that enables user-supplied programs to run sandboxed inside the operating system's kernel, triggered by a specific event or function.
If you've already spent the time learning SELinux, but have to deploy Ubuntu as a server operating system, you can install SELinux and be on familiar ground. Ubuntu Server has its own Mandatory Access Control system, called AppArmor, which is similar to SELinux, in that they both provide tools to isolate applications from one another, to protect the host system.
New Linux admins need to know how to give and take sudo privileges from users. Jack Wallen shows you how on both Ubuntu- and Red Hat-based Linux distributions.
Canonical has made it easy for admins to join Ubuntu Desktop to Active Directory domains. One particular feature that network and security admins will greatly appreciate is the ability to easily connect Ubuntu Desktop to an Active Directory domain.
Jack Wallen shows you how to add an SSH tarpit to Ubuntu Server with the help of endlessh. Essentially, a tarpit will run on the standard SSH port and, when a hacker attempts to break through that port, they'll wind up stuck in an endless loop.
The 2021 spring edition of Pwn2Own hacking contest concluded last week on April 8 with a three-way tie between Team Devcore, OV, and Computest researchers Daan Keuper and Thijs Alkemade. A zero-click exploit targeting Zoom that employed a three-bug chain to exploit the messenger app and gain code execution on the target system.
New Linux admins need to know how to give and take sudo privileges from users. You might come into a situation when you need to "Promote" one of those users to admin and give them sudo privileges.
Looking for an easy-to-deploy VPN server for your data center? Jack Wallen walks you through the steps for installing the open source Pritunl solution. One of the reasons why I like Pritunl for this task is that it includes a very user-friendly, web-based GUI for the management of the VPN. I want to walk you through the process of installing Pritunl on Ubuntu Server 20.04.
VanDyke Software announced the official releases of SecureCRT 9.0 and SecureFX 9.0. Built-in RDP support in secureCRT 9.0 for Windows.
An Azure customer was outraged after finding himself on the receiving end of an unexpected LinkedIn message from Ubuntu maker Canonical last night. Shortly after a message turned up from an Enterprise Development representative at Ubuntu with the ominous phrase: "I saw that you spun up an Ubuntu image in Azure," and offering to be a point of contact.