Category: 02. Dedicated servers

What is a dedicated server, its advantages. Yjw to install OS on server and do server diagnostics.

How to Recursively Change the File’s Permissions in Linux

Changing permissions on a single file is easy with chmod. Doing it across a whole directory tree – hundreds of files and folders – is where people get it wrong. The blanket command chmod -R 755 works, but it makes every file executable, which is incorrect for normal web files. This guide covers the recursive […]

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How to use TCPDUMP

TCPDUMP is a tool that is used to analyze TCP/IP packets. It was first released in 1988 and has since become a very powerful and widely used traffic analyzer on Linux as well as many other operating systems.

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How to Check (scan) for Open Ports in Linux

In this article, we will look at scanning server ports for running services. In some cases, this helps to identify problems with the services running on the server. Network Mapper (nmap) is usually used for port scanning. This program allows you to determine open TCP and UDP ports. To install it, use the following command: […]

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How To Install MongoDB

MongoDB is an open source, document-oriented free database that is classified as a NoSQL database because it does not rely on the traditional tabular structure of a relational database. Instead, it uses JSON-like documents with dynamic schemas. Unlike relational databases, MongoDB does not require a predefined schema before adding data to the database. You can […]

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