IP address

hostname

botond published 2024/02/10, Sat - 08:40 time
Using the hostname Linux command with practical examples | Linux portal
The hostname command is a basic tool in Linux systems that allows you to query or set the computer name. In Linux systems, every machine has a unique name, which we call "hostname". This name allows devices to be identified and accessed within the network. The hostname command can be used to view or change the settings of the current hostname. This command is particularly useful when diagnosing network problems and configuring servers and other network devices.

BIND (Berkeley Internet Name Domain)

botond published 2024/01/20, Sat - 07:18 time
Introducing the BIND (Berkeley Internet Name Domain) entry in the encyclopedia | Linux portal
The Linux-based BIND (Berkeley Internet Name Domain) server is the most widespread and well-known DNS (Domain Name System) software, which is a key part of the basic infrastructure of the Internet. BIND's development began at the University of Berkeley in the late 1980s, and since then it has undergone many developments to meet today's challenges. As a DNS server, BIND's main task is to translate human-readable domain names (e.g. www.pelda.hu) to IP addresses (e.g. 192.168.1.1), thus enabling Internet users to easily navigate the web. However, BIND's role is much more complex and critical than that; ensures the smooth operation of the domain name system, which is essential for the stability and security of the Internet.

How to defend against attacks resulting in large volumes of 404 or other 4xx HTTP error codes with Fail2Ban

botond published 2023/03/14, k - 00:38 time
How to defend against attacks resulting in large volumes of 404 or other 4xx HTTP error codes with Fail2Ban | Linux portal
Our websites are constantly under attack from the outside world. The vast majority of these are done by robots, which try to discover the weak points of the websites running on the server. Some of the robots with this purpose try to do this by making various seemingly random HTTP requests to our websites, most of which are directed to non-existent URL addresses. As a result, our server responds with a 404 HTTP response code. In this description, we will look at how to ban the large number of attempts resulting in 404 and other 4xx HTTP response codes using Fail2Ban.

Installing the Debian 11 (Bullseye) Minimal Server (page 2)

botond published 2022. 04. 04., h - 19:55 time
Installing the Debian 11 (Bullseye) Minimal Server (page 2) | Linux portal
In this description, we will install a minimal Debian 11 (Bullseye) server, which consists of the Debian 11 base system and some basic program installation and configuration. The server will later serve as a basis for additional server installations. On this page, we perform some basic post-installation settings, such as setting a fixed IP address, Sudo, and repositories.

How to migrate your Apache-based web server running LAMP or ISPConfig if the server's IP address changes

botond published 2020/08/11, k - 22:35 time
How to migrate your Apache-based web server running LAMP or ISPConfig if the server's IP address changes | Linux portal
Sometimes, for some reason, we get a new IP address, so we also need to modify the appropriate configuration files and make settings on our web server to keep the services running on the server running. Whether it is a home test environment, a live web server, or moving the server to another (network) environment, we need to make these settings in each case. In this description, we will go through the settings inside or outside the server that we need to change in order for the services on the machine to work with the new IP address.

Installing Debian 10 (Buster) Minimum Server (page 2)

botond published 2019/11/05, k - 16:30 time
Installing Debian 10 (Buster) Minimum Server (page 2) | Linux Portal
In this tutorial we will install a minimum Debian 10 (Buster) server, which consists of the Debian 10 base system and some basic configuration. This installation will be the basis for later LAMP and perfect server tutorials. On this page, we complete the remaining steps of the installer and make the following settings: Upgrade APT, sudo, fixed IP address and nano configuration.

IP address

botond published Jan. 2018, 06, 27:21 p.m. time
IP address
Introducing the IP address in the encyclopedia
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