centos 7 for beginners
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CentOS 7.5 Installation Step by Step with GUI (GNOME Desktop)
Linux is a free and open source operating system developed by Linus Torvalds on September 17, 1991. It is mainly used as server environment. A lot of Linux distributions are present today. Among them, Red Hat Linux is used as enterprise Linux. Red Hat is also known as Red Hat commercial Linux that means Red Hat is a paid service program. CentOS (Community Enterprise Operating System) is another Linux distribution that provides a free and open source, enterprise-class, community-supported server platform functionally compatible with its upstream source, Red Hat Enterprise Linux (RHEL). All the commands and functionalities those are available in Red Hat Enterprise Linux are available in CentOS Linux. The current version of CentOS is CentOS 7.5. So, in this article I will show how to install current version of CentOS (CentOS 7.5) with Graphical User Interface (GNOME Desktop). System Requirements CentOS 7 can be installed on your server machine if it has minimum 256MB RAM, 2GB disk space and 64 bit CPU architecture because CentOS 7 does not support 32 bit CPU architecture. Installation of CentOS 7.5 with 7 Easy Steps CentOS 7.5 can easily be installed on your server machine following the below 8 easy steps. Downloading CentOS 7.5 ISO and making bootable drive Beginning [...]
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MikroTik Bandwidth Management using Simple Queue | September 3, 2015
MikroTik is one of the most popular routers in computer networking. It is said that no office or ISP company cannot go a single day without MikroTik Router. MikroTik Router is also a popular router to a network administrator because MikroTik Router is easily maintainable with graphical user interface software named winbox than other routers. A lot of services are available in MikroTik router to run a network smoothly. Among these services, Bandwidth Management Service is the most popular service in [...]
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MikroTik RouterOS Device Mode: Home, Basic, and Advanced – and Their Impact on Hotspot Setup | November 4, 2025
MikroTik RouterOS offers flexible configuration options for everything from home routers to ISP-grade hotspots. When setting up your MikroTik device, you’ll see a Device Mode option in Quick Set — allowing you to choose between Home, Basic, or Advanced modes. These modes define how much control you have over the router’s features and directly affect your ability to create and manage a Hotspot network. In this guide, we’ll explain each mode, show you how to check and change device mode [...]
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CentOS 7 Network Configuration Using nmtui Tool | August 27, 2018
After completing CentOS 7 fresh installation, the first task to a system administrator is to configure its network so that it can communicate to other network devices. In my previous article, I discussed how to install CentOS 7.5 GUI (GNOME Desktop) step by step. If you are a new CentOS 7 user and yet you have not installed CentOS 7.5 on your server machine, feel free to study my previous article and install CentOS 7.5 GNOME Desktop according to that [...]
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MikroTik Bandwidth and Resource Monitoring with Graphs | January 31, 2018
“Am I getting my committed bandwidth?” is a common question to any network administrator. This question may arise either from your customer or from your owner if you are an employee of any organization. If you feel boring hearing this question and want to establish a system where your customer will be able to inspect his bandwidth usage, MikroTik Graphing is your best friend. MikroTik Graphing can be used to display graphics for traffic which is passed through interfaces and [...]
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DNS Server Configuration on CentOS 7 (Caching DNS with BIND) | June 24, 2019
DNS (Domain Name System) Server is an essential part to any computer network. Today web communication cannot imagine without DNS Server. DNS is a client server protocol where DNS Client requests for the domain name resolution and DNS Server response on it. Every network should have a DNS Server because local DNS Server improves network performance by caching DNS information and serving DNS request locally. DNS Server can be configured either Windows or Linux operating system. In this article, I [...]
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LVM Management in CentOS/Red Hat 7 Linux | March 15, 2019
LVM (Logical Volume Manager) is the recommended partition method for CentOS/Red Hat 7 Linux. Specially, if we work on Mail Server, File Server, FTP Server, Web Proxy Server or any application where disk space changes frequently, the LVM partition is mandatory in this case. In my previous article, I discussed how to install CentOS 7.5 with LVM partitioning. If you are new here or CentOS 7 is not yet installed, I will suggest you to follow my previous article and [...]
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Boost Network Performance with MikroTik FastTrack in RouterOS 7 | October 27, 2025
Network administrators often face the challenge of balancing speed and stability. MikroTik’s FastTrack feature, introduced in earlier RouterOS versions and optimized in RouterOS 7, is a game-changing solution that dramatically enhances performance by reducing CPU load and improving packet handling efficiency. 🚀 What Is MikroTik FastTrack? FastTrack is a special processing method in RouterOS that allows packets from established and related connections to bypass the standard connection tracking process. In simple terms, once a connection is identified as safe and [...]
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MikroTik Hotspot Login by MAC Cookie Configuration | July 10, 2020
MAC Cookie is a newly introduced Hotspot feature in MikroTik Router. MAC Cookie is specially designed to improve accessibility for smartphones, laptop and other mobile devices. MAC Cookie is not a basic login method rather it is an extension of basic Hotspot login method such as HTTP CHAP, HTTP PAP and HTTPS. So, when MAC Cookie is used with these basic Hotspot login methods, it improves the Hotspot user accessibility. In my previous article, I discussed MikroTik Hotspot basic configuration [...]
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How to Backup and Restore Mozilla Firefox Bookmarks | August 13, 2015
Bookmark is one of the most important and useful features in Mozilla Firefox Browser. If Bookmark is lost, Firefox users become very anxiety to recover it. But Mozilla Firefox also provides a tool to backup and restore Bookmarks so easily. So don’t need to be worried. If you know the proper steps about how to take a backup of your bookmark file and how to restore that bookmark backup file again, it will be very beneficial for you. So, this [...]
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