In order to get a valid SSL certificate, you will need to generate a CSR that a certificate signing authority (such as Verisign or Thawte) will request. You have to determine the URL for the secured web site – this should be a Fully Qualified Domain Name (FQDN), i.e. if you want to access your secured website through https://www.example.com/, then the FQDN of your website is www.example.com Select a few large and relatively random files on your server – compressed log files are a good start. These will act as your random seed enhancers. We refer to these as file1:file2:…:file5 below. Generate a key with the following command:
While accessing phpMyAdmin, you may get the following error. #2002 – The server is not responding (or the local MySQL server’s socket is not correctly configured) This is due to the missing socket file in the location /tmp. The socket path which is specified in the phpMyAdmin configuration file is /tmp/mysql.sock.
Logical Volume Manager (LVM) is a flexible storage management system in Linux that allows administrators to manage disk space more efficiently than traditional disk partitions. Instead of fixed partitions, LVM lets you create logical volumes that can be resized, extended, or reduced without major downtime. This guide explains what LVM is, important terminology, and how to create and extend logical volumes step by step. What Is LVM? LVM (Logical Volume Manager) is a method of allocating storage into logical volumes rather than static partitions. It provides flexibility by allowing multiple disks to be combined into a single storage pool. Key Advantages of LVM Important LVM Concepts Understanding LVM terminology is essential before creating volumes. 1. Physical Volumes (PV) Physical Volumes …
Creating a Virtual Private Server (VPS) using OpenVZ allows administrators to deploy lightweight virtual environments quickly and efficiently. This guide explains how to create, configure, and manage a Debian VPS, install Apache, PHP, MySQL, and deploy phpBB. Create a Debian VPS Using OpenVZ OpenVZ templates are typically stored in: Create a new VPS using the Debian minimal template: Important:Each VPS requires a unique container ID. Here, 157 is used as an example. Configure VPS Startup Enable automatic startup at system boot: Set Hostname and IP Address Assign hostname: Assign IP address: Configure Network and Resources Set socket limits: Add DNS nameservers: Alternatively, edit the container configuration file directly: Start and Access the VPS Start the container: Set the root password: …
Have you ever wondered why, when you access a website through a secure connection, you get a warning that the certificate is not issued by a trusted authority? In most cases, the exact warning message that you will get depends on your browser as follows: IE: The security certificate presented by this website was not issued by a trusted certificate authority! Firefox: The certificate is not trusted because the issuer certificate is unknown. (Error code: sec_error_unknown_issuer)
If you loose your server root password what would you do? It is not the end of the world. You can recover it in a single user mode.
Exim is a widely used Mail Transfer Agent (MTA) that comes pre-installed on many Linux and Unix-based systems. It is responsible for routing and delivering email messages across networks. Because of its flexibility, scalability, and powerful configuration options, Exim is commonly used on servers that manage large volumes of email traffic. To simplify administration and troubleshooting, Exim provides a variety of built-in utilities. These tools help system administrators monitor mail queues, analyze logs, manage databases, and maintain server performance. Understanding these utilities can make it easier to diagnose issues and keep your mail server running efficiently. Below are some of the most commonly used Exim utilities and their functions. Common Exim Utilities exiwhat – Check Running Exim Processes The exiwhat …
PERL MODULES What is Perl? Perl is a high-level programming language with an eclectic heritage written by Larry Wall and a cast of thousands. It derives from the ubiquitous C programming language and to a lesser extent from sed, awk, the Unix shell, and at least a dozen other tools and languages. Perls process, file, and text manipulation facilities make it particularly well-suited for tasks involving quick prototyping, system utilities, software tools, system management tasks, database access, graphical programming, networking, and world wide web programming. These strengths make it especially popular with system administrators and CGI script authors, but mathematicians, geneticists, journalists, and even managers also use Perl.
Mod_Perl 1. What is mod_perl ? 2. Working of mod_perl. 3. Advantage & Disadvantages of mod_perl. 4. Downloading and Installation. 5. Configuration. 6. Some common errors.
PHP DSO DSO – Dynamically Shared Objects Apache with PHP can be installed in two different ways. Statically embed the PHP binary into the Apache binary. This is probably the fastest and best way to run PHP Install Apache and PHP is by using Apaches DSO module Why DSO? Apache supports adding modules on instead of embedding them in the httpd binary. This works well when you dont want to re-compile Apache each time a module is updated, or if you want to add on numerous modules for development purposes System Administrators Dream: Allows developers to upgrade PHP without having to recompile Apache