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The Complete Guide to Java Exception Handling

A complete guide to exception handling in Java: try-catch-finally, the exception hierarchy, custom exceptions and best practices.

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Jun 20, 2025
The Complete Guide to Calculate Standard Deviation in R

This comprehensive guide will walk you through everything you need to know about standard deviation in R, from basic concepts to advanced applications.

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May 21, 2025
Comprehensive SFTP Guide: Secure File Transfer Methods and Best Practices

A practical guide to SFTP: secure connections, file transfer commands, server setup and troubleshooting.

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Apr 28, 2025
Complete Guide: How to Check MySQL Version - 7 Proven Methods

Seven ways to check the version of MySQL on your server: from the command line, with SQL queries and in control panels.

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Mar 30, 2025
Self-Hosting Your Website: The Ultimate Guide to Independent Web Hosting

Slow loading speeds, restricted customization options, security vulnerabilities from shared environments, and limited control over server configurations can significantly impact your online success...

Feb 2, 2025
How to Display Contents of a File in Linux: Essential Commands for Every User

Command-line tools to view file contents in Linux: cat, head, tail, more, less, tac and grep.

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Mar 14, 2024
How to Block Pages and Directories with robots.txt

How to block pages or directories from crawling with the robots.txt file, with ready-to-use examples.

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Nov 30, 2023
How to Create FTP Accounts via SSH

How to create and configure an FTP user over SSH with ProFTPD, without a control panel.

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Jul 3, 2023
How to reset a root password on VPS with CentOS 7

How to reset a lost root password on a VPS and on a dedicated server with CentOS 7, using the console or IPMI.

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Jun 11, 2023
How to Back Up and Restore Email in Thunderbird

Thunderbird is a free email client. Here is how to back up, restore, import and export your mail in it.

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May 10, 2022
Log Management with LogRotate CentOS 7

Logrotate is a system utility that rotates, compresses and deletes log files automatically. Here is how to configure it.

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Apr 27, 2022
Iptables

How to use iptables on a Linux server: viewing, adding and deleting rules, opening ports, blocking IP addresses, NAT and saving rules permanently.

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Apr 21, 2022
An Easy Way to Connect to the Server with RDP

RDP lets you manage a Windows server remotely. Here is how to connect from Windows, macOS and Linux.

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Apr 14, 2022
Changing file and folder permissions

How to change file and folder permissions in the ISPmanager control panel, over FTP and over SSH.

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Apr 9, 2022
Installation of Java in Ubuntu 18.04

How to install different versions of the Java Runtime Environment (JRE) and Java Development Kit (JDK) on Ubuntu 18.04 with apt.

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Apr 5, 2022