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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Linux Text Editor | September 7, 2017
Everything is file in Linux operating system. So, anyone who wants to work with Linux operating system (specially, Red Hat or CentOS) must learn how to edit files in Linux operating system. Because, it is always prefer to avoid graphical user interface (GUI) for changing system configuration parameters in Linux operating system unlike Windows operating system. You should be expert enough to edit any file in Red hat Linux operating system otherwise you will face a lot of difficulty to [...]
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WireGuard VPN Setup in MikroTik RouterOS7 with Windows OS | August 14, 2022
VPN (Virtual Private Network) is one of the most popular services in MikroTik RouterOS. A lot of VPN services (IPsec, EoIP, OpenVPN, PPTP, L2TP, IPIP etc.) are available in MikroTik RouterOS but in RouterOS7, a new VPN service named WireGuard has been introduced which is extremely simple yet first, secure and modern VPN. WireGuard uses cryptography to make it secure. In RouterOS7, WireGuard can be used either Client-Server (Road Warrior) VPN tunnel or site to site VPN tunnel. Using Client-Server [...]
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MikroTik WiFi Frequency Band and Channel Width Explanation | January 10, 2020
MikroTik WiFi frequency, band and channel width tuning is an important task in any wireless network. If we fail to setup WiFi frequency and channel width parameter properly, we will notice a poor performance of wireless network. WiFi is aimed at use within unlicensed spectrum and the unlicensed spectrum that is usually used for WiFi is 2.4 GHz and 5 GHz band. 2.4 GHz and 5 GHz bands have multiple channels and these channels must be setup properly to get [...]
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MikroTik Hotspot Customization | April 5, 2017
Hotspot is one of the most popular services in MikroTik router. MikroTik Hotspot Gateway is a policy to authorize network clients before to access local network resources as well as public network resources through MikroTik router. In a Hotspot network, the user can login or authenticate using almost any web browser, so there is no need to install any additional software to client end. As Hotspot login prompt is a webpage, Hotspot service can effectively be used as an advertising medium of [...]
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MikroTik OpenVPN Setup with Windows Client | April 2, 2018
VPN (Virtual Private Network) technology provides a secure and encrypted tunnel across a public network. So, a private network user can send and receive data to any remote private network through VPN tunnel as if his/her network device was directly connected to that private network. MikroTik OpenVPN Server provides a secure and encrypted tunnel across public network for transporting IP traffic using PPP. OpenVPN uses SSL Certificates. So, OpenVPN Tunnel is a trusted tunnel to send and receive data across [...]
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Create System Restore Point in Windows OS | August 27, 2015
System Restore utility in windows operating system helps a windows user to take one or more snapshots of his/her windows system when windows operating system is working well. If any system crash occurs in future due to virus attack or critical system update or any unwanted program, the system can be reverted to its previous snapshot when windows OS was working well. So, System Restore utility in windows operating system is a very helpful service for windows users to protect [...]
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Managing Disk Partition with the parted Tool in CentOS 7 | March 2, 2019
As a system administrator, sometimes you may require to manage partitions of your CentOS/Red Hat Linux Operating System. Partition management is always a risky task. But there are some useful tools those are so helpful to manage CentOS/Red Hat Linux disk partition easily. In my previous article, I discussed how to manage CentOS/Red Hat 7 HDD partitions with the fdisk utility. The fdisk tool is only eligible to manage MBR partition table. But GPT partition table is now becoming more [...]
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MikroTik Load Balancing over Multiple Gateways (2 WAN) | October 13, 2016
Load Balancing is a technique used to send network traffic over multiple gateways. If you have multiple ISP connections in your network, you can send your network traffic through those ISP connections and can make a load balancing network. Accidently you may ask me, why will I use multiple ISP connections? What are the benefits to use multiple ISP connections in my network? I will say, ask yourself deeply then you will find the reasons why multiple ISP connections is [...]
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How to Install MikroTik CHR on VMware Workstation | September 9, 2019
MikroTik is found both RouterBoard where RouterOS and License are prebuilt and RouterOS Application that can be installed on a Physical Machine or Virtual Machine. RouterOS installation on Physical or Virtual Machine has license limitations. Full RouterOS packages cannot be used more than 24 hours without license. So, RouterOS application is not suitable for the Trainee or not suitable to RND purpose. From RouterOS v6.34, MikroTik introduces Cloud Hosted Router (CHR, a new RouterOS version) which has different licensing scheme. [...]
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