Search Results for: Linux

Linux Mail Server Setup and Configuration

/ / Tutorials / 16 minutes of reading
Linux mail server setup

Learn how to set up a secure, high-performance Linux mail server from scratch with this comprehensive guide. Discover how to configure Postfix for email routing, integrate Dovecot for IMAP/POP3 retrieval, and harden your server with SPF, DKIM, and DMARC protocols. Explore Contabo’s NVMe-powered VPS and dedicated servers—ideal infrastructure for self-hosted email solutions offering GDPR compliance, DDoS protection, and scalable storage. Perfect for developers, businesses, and privacy-conscious users wanting full control over their email infrastructure.

Linux Mail Server Setup and Configuration Read More »

I’m Having Performance Issues With My Linux Server, What Can I Do?

/ / KB / 3 minutes of reading

I’m Having Performance Issues With My Linux Server, What Can I Do? If you’re experiencing performance issues with your Linux server a systematic approach to diagnosing and resolving these problems is crucial. Below you’ll find steps to help you diagnose your server and find potential solutions.  Analyze CPU Usage: Begin by establishing clear expectations for

I’m Having Performance Issues With My Linux Server, What Can I Do? Read More »

How Do I Install an SSL Certificate on My Linux Server Using Let’s Encrypt?

/ / KB / 2 minutes of reading

How do I install an SSL certificate on my Linux server using Let’s Encrypt? Before you install the SSL Certificate, you must have the following: A domain name pointing to your server. Root or sudo access to the server. If you have both of the above, then you can follow the guide below to install

How Do I Install an SSL Certificate on My Linux Server Using Let’s Encrypt? Read More »

How Do I Install an SSL Certficate on My Linux Server?

/ / KB / 1 minute of reading

How do I install an SSL certficate on my Linux server? First you need to obtain the SSL certificate. After buying your SSL certificate you’ll receive several files from your Certificate Authority (CA), typically including your SSL certificate file and your CA bundle file which you will need to perform the installation.  Next, upload the

How Do I Install an SSL Certficate on My Linux Server? Read More »

How to Use Linux UFW

/ / Tutorials / 6 minutes of reading

What is UFW?  Uncomplicated Firewall (UFW) is a user-friendly interface for managing netfilter, the standard firewall included in the Linux kernel. Its primary goal is to simplify firewall management, making it more accessible to those not deeply familiar with firewall concepts. UFW provides a straightforward way to configure a powerful tool, offering both command-line and

How to Use Linux UFW Read More »

Mastering File Permissions: Understanding Linux chmod

/ / Tutorials / 4 minutes of reading
Understanding Linux chmod

File permissions are the cornerstone of Linux system administration, serving as the gatekeepers to the operating system’s files and directories. They dictate what actions a user can perform, such as reading, writing, or executing files, ensuring the security and integrity of the system. Understanding how to manage these permissions effectively is essential for anyone tasked

Mastering File Permissions: Understanding Linux chmod Read More »

Scroll to Top