Knowledge base — Page 30

14.01.2025
5 918
Knowledge base / Ispmanager
Why the error No input file specified appears when opening Roundcube

Often when opening Roundcube in ispmanager 6 panel, an error No input file specified occurs. This error in Roundcube launched through ISPmanager usually indicates problems with web server configuration or incorrect file path settings.

14.01.2025
7 420
Knowledge base / Instructions
How to check DNS server operation

DNS is a distributed Internet system that translates machine IP addresses into human-readable website domain names.

14.01.2025
8 668
Knowledge base / Review
Overview of popular dashboards for home server management

Dashboards are convenient and functional web interfaces that help to unite all applications on your home server in one place. This article presents the best solutions for home servers that will suit both beginners and advanced users.

13.01.2025
5 331
Knowledge base / Ispmanager
Configuring mail domain certificates after ispmanager upgrade

After upgrading ISPmanager you may need to reconfigure certificates for mail domains. The ability to connect certificates to mail domains is enabled by default only for new panel installations of version 5.66.0 or higher, so after upgrading an existing panel from version 5.66.0 or lower, you will need to configure this functionality manually.

13.01.2025
6 930
Knowledge base / Review / System
Apache Tomcat: What it is and what it's for

Apache Tomcat is one of the most popular and reliable Java application servers. This tool runs web applications, manages user requests and returns data with minimal latency. Thanks to its flexibility and performance, Tomcat has been recognized among both novice and professional developers. Let's take a closer look at its features, application methods and real-life use cases.

10.01.2025
6 181
Knowledge base / System / Programming
What you need to know to work at Vi

VI is a powerful console text editor. It is deservedly one of the most popular tools in Unix systems. And all thanks to its speed and a huge number of text manipulation features. However, it can be a bit difficult to master. That's why we have collected the main commands of the Vi editor in this article.

10.01.2025
2 150
Knowledge base / Review / Terminal
How to Use Tmux on Linux: A Beginner's Guide

Tmux is a console utility that allows you to manage multiple windows and panes within a single session. The state of the windows can be saved and restored even after a connection is interrupted. 

09.01.2025
4 160
Knowledge base / Review
Review of the Ghostty Terminal Application

Ghostty is a new open-source, cross-platform terminal application developed by Mitchell Hashimoto (co-founder of HashiCorp). The developer explained that his goal was to create a terminal emulator that is fast, feature-rich, and has a native interface while remaining cross-platform. This article provides an overview of the app’s key features and guides you on how to install it on Ubuntu.

Using outdated commands is not uncommon among Linux users. For instance, you might have learned about a utility many years ago from a tutorial or manual and continued using it out of habit, even though a more modern and convenient alternative exists.

In this article, we will discuss such deprecated Linux commands. Some of these commands can still be found in your OS because distributions sometimes keep them for backward compatibility or create new implementations under old names.