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Email servers use specific ports for sending and receiving messages. The most common ones include: SMTP (Simple Mail Transfer Protocol): Port 25 (default, often blocked by ISPs), 465 (SSL), and 587 (STARTTLS) for outgoing mail. IMAP (Internet Message Access Protocol): Port 143 (unencrypted) and 993 (SSL/TLS) for incoming mail. POP3 (Post Office Protocol): Port 110…
The server address is resolved with the domain names using DNS (Domain Name Service). There are numerous A, TXT, MX, CNAME, etc. record types in this instance of DNS. Each type of DNS record has a separate function; for instance, an A record resolves the server’s IP address to the given domain, while an MX…
What you will read?1 Check Your CentOS Version2 Enable Extra Repositories for GNOME3 Install GNOME Desktop Environment4 Set GNOME as the Default Desktop Environment5 Reboot Your System If you’re using CentOS and looking to install the GNOME desktop environment, you’ve come to the right place. In this guide, we will walk you through the process,…
What you will read?1 Update System Packages2 Install Nginx3 Install MySQL4 Install PHP5 Configure Nginx to Use PHP6 Start and Enable Services7 Test Your LEMP Stack Setting up a LEMP stack (Linux, Nginx, MySQL, PHP) on an Ubuntu server is a great way to run your websites or web applications efficiently. In this guide, we’ll…
What you will read?1 Why Port Forwarding is Needed for VPN Connections2 How to Set Up Port Forwarding for VPN Port forwarding is an essential step for ensuring that VPN traffic can properly reach the VPN server from the client side, especially when you’re behind a router or firewall that may block or restrict certain…
What you will read?1 Step 1: Place SSL Certificates in the PostgreSQL Data Directory2 Step 2: Modify PostgreSQL Configuration File3 Step 3: Configure pg_hba.conf for SSL Connections4 Step 4: Restart PostgreSQL5 Step 5: Verify SSL Configuration Once you have generated the SSL certificates, the next step is to configure PostgreSQL to use them for secure…
What you will read?1 Generate a Private Key2 Create a Certificate Signing Request (CSR)3 Generate the SSL Certificate4 Set Permissions To enable SSL for PostgreSQL, generating valid SSL certificates is a crucial step. These certificates ensure that the communication between the PostgreSQL server and its clients is encrypted and authenticated. Below are the steps to…
Configuring and installing extensions in PostgreSQL allows you to enhance the functionality of your database, adding new features, improving performance, or integrating with other systems. PostgreSQL comes with a wide variety of built-in extensions, and you can also install third-party extensions to meet your specific needs. 1. Installing Extensions: To install an extension, you first…
What you will read?1 Install Postfix2 Configure Postfix for Email Forwarding3 Set Up Email Aliases for Forwarding Postfix is a popular and powerful mail transfer agent (MTA) for handling email delivery. It is a reliable choice for email forwarding on a VPS due to its security features, ease of configuration, and ability to scale. Below…
