Linux Creator Supports Removing Russian Kernel Maintainers
In response to sanctions compliance, Linux creator Linus Torvalds recently expressed support for removing several Russian maintainers from the Linux kernel project. This decision, announced by prominent developer Greg Kroah-Hartman, has sparked widespread discussion within the Linux community. The removals…
Configuring HAProxy: Enabling Access to an API Server with Fixed IP for SaaS Cloud Systems
In the realm of Software-as-a-Service (SaaS) cloud systems, it is common to have an API server that should only be accessed by a fixed set of IP addresses or a range of IP addresses. To facilitate secure and controlled access…
How to setup Squid HTTP Proxy on Ubuntu 22.04 LTS
Squid is a popular open-source caching proxy server that primarily operates as an HTTP proxy. It acts as an intermediary between clients and web servers, allowing clients to make requests for web content, and caching frequently accessed content to improve…
Stay away from suspicious access with fail2ban
A number of suspicious access to Linux servers happens on the Internet every day. Fail2ban is software to protect Linux servers from brute-force attacks. Installation on Ubuntu Linux server: $ sudo apt update $ sudo apt install fail2ban Configuration of…
Postfix SMTP – How to setup an email relay system ?
Email relay is an email server which forwards incoming SMTP emails to an another SMTP server. Postfix can be setuped as an email relay. First, you should ensure which domaisn are being forwarded (eg. domain-A-to-be-relayed.com and domain-B-to-be-relayed.net), and hostname of…