DVDROM (Digital Versatile Disk Read-only memory) and CDROM (Compact Disc Read-only memory) are optical storage devices to store your data for future uses or for backups. Many people use these disks to store movies, photos etc. By default many older Linux machines will not allow you to see the content of them. This is due that, they are not mounted by default in your box. We have to mount them properly so that we can access their content. There are many ways to do mounting CDROM/DVDROMs. One of the classic …
There are various types of network problems that occur in an organization,which results in inaccessible devices,performance degradation, etc.These can be classified as: Network Hardware failure : Includes faulty devices like switches,Ethernet cards,improper cabling etc. Network configuration problems : Includes issues related to improper configuration of protocols Malicious code : Includes issues as a result of the presence of worms/viruses on the network In order to troubleshoot network problems from scratch you need to start checking by hardware – ie,physically check network cabling,network cables crossovers over electric cables,quality of switches routers …
SNI ( Server Name Identification) allows you to host multiple SSL certificates on a single IP address. Although, hosting several sites on a single virtual private server is possible with the use of virtual hosts, providing separate SSL certificates for each site traditionally required separate IP addresses. The process has now been simplified through the use of Server Name Indication (SNI), which sends a site visitor the certificate that matches the requested server name. Requirements 1. Domain names should be registered in order to serve the certificates by SNI. 2. …
Modern users expect websites to load instantly. Even a few seconds of delay can increase bounce rates and reduce conversions. For site owners running Apache servers, improving performance is essential for both user experience and search rankings. One powerful solution is mod_pagespeed, a performance optimization module originally developed by Google that automatically enhances site speed without requiring manual optimization of every file. What Is mod_pagespeed? mod_pagespeed is an extension module for the Apache Software Foundation web server that automatically optimizes website resources. It applies filters that rewrite and compress assets …
Log files play a critical role in Linux systems. They help administrators monitor system activity, troubleshoot issues, track application behavior, and maintain security. As systems run continuously, log files can grow very large over time. If left unmanaged, this can consume disk space and affect system performance. Logrotate is a log file management utility designed to solve this problem. It automatically rotates, archives, compresses, and removes old log files, ensuring that logs remain manageable while preserving important historical data. Log rotation can be based on file size, age, or time …
Runlevel is a preset operating state on a Unix-like operating system. A run-level is a software configuration of the system that allows only a selected group of processes to exist. A system can be booted into (i.e., started up into) any of several run-levels, each of which is represented by a single-digit integer. Each run-level designates a different system configuration and allows access to a different combination of processes (i.e., instances of executing programs).
Denial-of-service attack (DoS attack) or Distributed Denial-of-service attack (DDoS attack) is an attempt to make a machine or network resource unavailable to its intended users. This attack generally target sites or services hosted on high-profile web servers such as banks, credit card payment gateways, and even root nameservers. DoS attacks are implemented by either forcing the targeted computer to reset, or consuming its resources so that it can no longer provide its services or obstructs the communication media between the users and the victim so that they can no longer …
If you manage a website, you’ll likely encounter server migration at some point. This could be due to upgrading to a more powerful server, switching service providers, or updating your software environment for better performance and security. Despite its benefits, server migration often raises concerns – such as data loss, downtime, or website instability. The good news is that with proper planning and execution, you can migrate your web server with zero downtime and no data loss. Let’s walk through the process step by step. 1. Prepare Your DNS When …
A completely frozen Linux system can be frustrating. The mouse cursor does not move. Keyboard shortcuts like Ctrl + Alt + F1 or Ctrl + Alt + Backspace do not respond. Even the Num Lock key may stop toggling. In such situations, most users force a hard reset. However, a hard reboot can lead to data corruption or filesystem damage. There is a safer way to reboot a locked Linux system using the Magic SysRq key. This method allows you to properly terminate processes, sync disks, and safely reboot the …
Choosing the right hosting control panel is an important decision for hosting providers, businesses, and system administrators. Among the many options available, cPanel and Plesk continue to dominate the web hosting industry. Both are mature, reliable platforms, but they are built with different use cases and operating environments in mind. Understanding Hosting Control Panels A hosting control panel is a web based interface that simplifies server and website management. It allows administrators and end users to manage domains, email accounts, databases, DNS records, backups, and security settings without working directly …