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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to Hide PHP Version Number in HTTP Header?
The HTTP header contains crucial information about web communication between client and server, including details about the software running your website. This may reveal your website's PHP version number, which can pose significant security risks. PHP powers over 80% of websites worldwide, making it a high-value target for attackers. When your PHP version is exposed in HTTP headers, malicious actors can exploit known vulnerabilities specific to that version. Hiding this information is essential for maintaining website security and preventing targeted attacks. Why Hide PHP Version Information? Exposing PHP version numbers allows attackers to − Identify ...
Read MoreCloudBerry Backup for Linux_ Review and Installation
Data loss is one of the biggest threats to businesses and individuals alike. Whether it's due to hardware failure, accidental deletion, or cyber-attacks, losing important data can have serious consequences. That's why having a reliable backup solution is crucial for safeguarding your important data. In this article, we will provide a comprehensive review of CloudBerry Backup for Linux, including its features, benefits, and installation process. We will also provide working code examples and step-by-step instructions to help you get started with the software. What is CloudBerry Backup for Linux? CloudBerry Backup for Linux is a backup software ...
Read MoreHow to perform grep operation on all files in a directory?
The grep command in Linux is used to search for patterns within files. It displays lines that match a specified pattern (regular expression) and is one of the most essential utilities for text processing and file searching in Linux systems. Basic Syntax grep [options] pattern [files] Common Options Option Description -c Lists only a count of matching lines -h Displays matched lines without filenames -i Ignores case for matching -l Prints filenames only (not the matching lines) -n Displays ...
Read MoreChange the Install directory with make install
When building software packages from source, you often need to control where the compiled software gets installed. By default, packages are typically installed in standard system directories like /usr or /usr/local. However, you might want to install to a custom location for testing, creating packages, or installing software for a single user without requiring root privileges. Using ./configure Parameters Most modern software packages use autotools (autoconf/automake) which provides a ./configure script with standardized parameters for controlling installation directories. Common Configure Parameters --prefix= − Base directory for installation (default: /usr or /usr/local) --bindir= − Directory for ...
Read MoreHow To Host a Website with HTTPS Using Caddy on Linux?
When it comes to website security, HTTPS is an essential component. HTTPS (Hypertext Transfer Protocol Secure) is a protocol that encrypts data being transmitted between a website and its visitors. The encryption ensures that sensitive information like login credentials or payment details cannot be intercepted by third-party users. Without HTTPS, websites are vulnerable to attacks like man-in-the-middle attacks and phishing scams, which can lead to significant data breaches and loss of user trust. Additionally, search engines like Google consider HTTPS a ranking factor, providing SEO benefits. Preparing the Environment Setting up a domain name and DNS records ...
Read MoreCockpit – A Powerful Tool to Monitor and Administer Multiple Linux Servers via Browser
Managing multiple Linux servers can be a challenging task, especially for those who are new to the Linux environment. Luckily, there are several tools available that make this task easier, and one such tool is Cockpit. In this article, we will explore what Cockpit is, its features, how to install and configure it, and how to use it to manage your Linux servers effectively. What is Cockpit? Cockpit is a powerful web-based graphical interface for managing and monitoring multiple Linux servers. It provides an easy-to-use and intuitive interface that allows system administrators to manage servers from a ...
Read MoreHow to preserve colouring after piping grep to grep in Linux?
In order to preserve colouring after using pipes between grep commands, we must first understand what the grep command is and how it handles output coloring in Linux. The grep command in Linux is used to filter searches in files for a particular pattern of characters. It is one of the most used Linux utility commands to display lines that contain the pattern we are searching for. The pattern we search for is typically called a regular expression. By default, grep displays colored output when writing directly to a terminal, but this coloring is lost when output is ...
Read MoreExtracting a substring using Linux bash
Extracting a substring from a string is a fundamental text processing operation in Linux. This involves isolating specific portions of text based on character positions (index-based) or patterns (delimiter-based). We'll explore different methods to extract substrings from strings using the Linux command line, covering both index-based and pattern-based approaches. Index-Based Substring Extraction Index-based extraction involves specifying the starting position and length of the desired substring. Here are four common methods: Using the cut Command The cut command extracts characters from position N to position M using the -c option. Note that cut uses 1-based indexing. ...
Read MoreWhat Does cd do on Linux
The cd command stands for "change directory" and is used to navigate the file system on a Linux computer. When used with a specific directory path as an argument, cd will change the current working directory to that location. For example, the command cd /home/user/documents will change the current working directory to the "documents" folder located within the "user" folder in the root directory. If you use cd command without any argument it will take you to your home directory. Basic cd Command Usage Here are the most common ways to use the cd command − ...
Read More7 Ways to Reduce Server Response Time
Server response time is an essential aspect of website performance, and it can have a significant impact on user experience. Slow server response time can lead to frustrated users, decreased page views, and ultimately lost revenue. Fortunately, there are several ways to reduce server response time and improve website performance. In this article, we'll explore seven effective methods for reducing server response time. Optimize Server Infrastructure One of the most critical steps in reducing server response time is optimizing server infrastructure. This involves ensuring that the server has adequate resources to handle the website's traffic and that software ...
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