Microsoft offers $100,000 to hack its custom Linux OS

Microsoft is offering hackers up to $100,000 if they can break the security of the company’s custom Linux OS. The software giant built a compact and custom version of Linux last year for its Azure Sphere OS, which is designed to run on specialized chips for its Internet of Things (IoT) platform. The OS is purpose-built for this platform, ensuring basic services and apps run isolated in a sandbox for security purposes.

Let’s Encrypt Wildcard SSL nginx for Ubuntu 18.04

Let’s Encrypt has transformed the internet. Every website can now have a free SSL certificate! You can authenticate your website with Let’s Encrypt using the .well-known path but if you have multiple virtual hosts then this can get tedious so Let’s Encrypt made it possible to add wildcard SSL certificates by using DNS to authenticate the domain. The idea is straightforward, if you add some specific DNS TXT records to your domain then Let’s Encrypt can use this information to verify you own the domain and then can feel secure issuing you a wildcard SSL certificate.

Ubuntu 20.04 LTS “Focal Fossa” Released

Canonical announced the general availability of the Linux distribution Ubuntu 20.04 LTS (Long Term Support) on April 23, 2020. Development put a focus on security and privacy according to Canonical, and it shows as the release includes WireGuard VPN client and Secure Boot support.

WireGuard support will be backported to Ubuntu 18.04 LTS according to Canonical.

How to Install Redis on CentOS 8

Redis is an in-memory data structure store. It is used as database store, cache server. You can also use redis as message broker to configure Publish/Subscribe (PUB/SUB) messaging system. Redis is capable to store Strings, Hashes, Lists, Sets, sorted sets, HyperLogLogs, bitmaps, streams, and spatial indexes etc. It also provides a PHP module for communication between PHP script with the Redis server. Redis is written in C programming language.

This tutorial will help to install the Redis cache server along with PHP Redis extensions on a CentOS 8 Linux machine.