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Linux Mail Server Setup and Configuration

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.

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

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

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

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

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

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

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How to Use Linux UFW

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

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Mastering File Permissions: Understanding Linux chmod

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

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