Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles on Trending Technologies
Technical articles with clear explanations and examples
How to Change FTP Port in Linux?
FTP (File Transfer Protocol) is a standard network protocol used to transfer files between hosts over a TCP-based network. In Linux systems, FTP servers typically run on port 21 by default. However, changing this default port is a common security practice that makes it harder for attackers to discover and target your FTP service. Understanding the Default FTP Port The default FTP port is 21, assigned by the Internet Assigned Numbers Authority (IANA). This port is well-known and widely recognized, making FTP services easily discoverable by both legitimate users and potential attackers. Security Risks of Default Port ...
Read MoreHow to Change Hostname in Debian 10?
Hostname is a unique name that identifies your computer on the network in Debian 10. Changing the hostname can improve system organization and identification, making it easier to manage devices on your network and connect remotely to your machine. Checking Current Hostname Before changing the hostname, it's essential to check the current system hostname. The hostnamectl command provides comprehensive information about your system's naming configuration. Terminal Command for Checking Current Hostname $ hostnamectl status This command displays detailed information about your system's hostname configuration, including − Static Hostname − The permanent ...
Read MoreHow to Change Hostname on Ubuntu 18.04?
A hostname is the unique identifier of a device in a network, used to identify and connect to other devices. It is a label given to a computer that enables unique identification when connected to the internet or any network. By default, Ubuntu assigns a hostname during installation, but you may need to change it to reflect the machine's function or location for easier network identification. Checking Current Hostname Before changing your Ubuntu 18.04 hostname, check the current configuration using the hostnamectl command. Open a terminal and run − hostnamectl This displays system information ...
Read MorePrepaging In Operating Systems
Prepaging is a memory management technique used by operating systems to improve system performance by loading program pages into memory before they are actually needed. This proactive approach helps reduce the time spent waiting for data retrieval from secondary storage, making the system more responsive and efficient. Unlike demand paging where pages are loaded only when referenced, prepaging anticipates future memory needs and loads pages in advance. This technique is commonly used alongside other memory management strategies like page replacement algorithms to optimize overall system performance. How Prepaging Works The operating system uses various prediction algorithms to ...
Read MoreHow to Change Hostname on Ubuntu 20.04?
A hostname is the unique name that identifies a device on a network. It allows other devices to locate and connect to it, making it an essential component of any network setup. Whether you're running a small home network or managing multiple servers in an enterprise environment, understanding how to change the hostname can come in handy. In this article, we'll explore how to change the hostname on Ubuntu 20.04 using both the command line interface (CLI) and Ubuntu's graphical user interface (GUI). Checking Current Hostname Before changing the hostname, you first need to know what the ...
Read MoreHow to Change Jenkins Home Directory?
Jenkins is a popular automation server that helps automate tasks in the software development process. The Jenkins Home Directory, also known as JENKINS_HOME, is the location where all configuration files, plugins, jobs, and other essential files are stored. This directory plays a significant role in maintaining the stability and performance of the Jenkins environment. There may be situations where you need to change the Jenkins Home Directory location, such as moving to a larger disk, relocating to a different server, or organizing your file system better. Preparing to Change Jenkins Home Directory Understanding the Current Jenkins Home ...
Read MorePrinter Spooler Problem
The printer spooler is a critical operating system component that manages all print jobs sent to printers. It queues print jobs and sends them to the printer in order. However, printer spooler problems can occur and disrupt printing operations, causing frustration and productivity loss. What is a Printer Spooler Problem? A printer spooler problem occurs when the spooler service fails, crashes, or becomes unresponsive. When a user sends a print job to a printer, it first goes to the printer spooler queue, then gets transmitted to the printer in the order it was received. ...
Read MoreHow to Change Kernel Runtime Parameters in a Persistent and Non-Persistent Way?
Kernel runtime parameters are settings that control the behavior of the Linux kernel on your system. These parameters can affect a wide range of system functions, such as memory allocation, network performance, and CPU scheduling. Understanding how to change these parameters is crucial for optimizing system performance and troubleshooting issues that may arise. There are two main ways to change kernel runtime parameters: non-persistent changes and persistent changes. Non-persistent changes modify the kernel's behavior temporarily, lasting only until you reboot your system. Persistent changes, on the other hand, modify the kernel's behavior permanently and persist across reboots. ...
Read MoreHow to Change Nginx Port in Linux?
Nginx is a popular open-source web server known for its speed, reliability, and scalability. The default port for Nginx is 80, which handles standard HTTP traffic. While this port works well in most cases, changing it can enhance security by making your server less predictable to potential attackers who commonly target well-known ports. Checking Current Nginx Configuration Before changing the Nginx port, it is important to verify that your current configuration is correct and identify where the port settings are located. Step-by-Step Configuration Check Follow these steps to check your current Nginx configuration − ...
Read MoreHow to Change or Reset Administrator Password on Windows Server?
In today's world, security is one of the top priorities for any organization. The consequences of a security breach can be catastrophic, leading to loss of critical data, financial losses, and reputational damage. One way to ensure that your Windows Server environment stays secure is by maintaining strong passwords for your administrator accounts. As the administrator account has elevated privileges and access to sensitive data and systems in the network, it's crucial to secure it with a strong password that can't be easily guessed or cracked by attackers. A weak password is akin to leaving the front door open ...
Read More