redhat configure network
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Red Hat/CentOS Network Configuration
Red Hat/CentOS network configuration or IP configuration is an important task to a Linux system administrator. After completing RedHat 7/ CentOS 7 fresh installation, you have to first configure your system network so that it can communicate to other network devices. In my previous article, I discussed how to install CentOS 7 core packages successfully on your physical machine. If you are a new CentOS 7 user and yet you have not installed CentOS on your machine, feel free to study my previous article CentOS7 core installation and install CentOS 7 core packages according to that article. After completing installation, it is time to configure your system network. In this article, I will show you how to configure your system network so that your CentOS server can communicate to other network devices. Red Hat/CentOS IP Configuration IP address can be configured dynamically or statically in Red Hat 7/CentOS 7. As Red Hat/CentOS Linux is mainly used for server environment, it is always better to assign static IP address. We know that everything is file in Linux operating system. So, we will now edit the network adaptor file to assign IP address in CentOS7. Network adaptor file is located in /etc/sysconfig/network-scripts/ directory. [...]
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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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Web Server Configuration in Linux with Apache, MariaDB and PHP | January 2, 2018
Web Server is one of the most important and most used servers today. Without web server internet cannot imagine. Even, the article you are reading is also served by a web server. So, having web server configuration knowledge is beneficial for you, I think. A web server is responsible to serve HTTP (Hypertext Transfer Protocol) contents such as text, image, audio, video etc. to its clients. A lot of web servers are present today such as Apache, IIS, Nginx and [...]
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How to Properly Downgrade MikroTik RouterOS and Firmware | October 2, 2019
MikroTik RouterOS is in constant development and new features or bug fixes are frequently available, sometimes even monthly. So, it is always recommend upgrading MikroTik RouterOS to a latest and stable version before beginning any configuration. But sometimes you may face that the upgraded version is not working properly according to your demand or you may upgrade to a new version that you don’t want. In this case, you should come back to your workable RouterOS version and firmware. Upgrading RouterOS [...]
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MikroTik Unequal Dual WAN Load Balancing with Failover using ECMP | September 15, 2019
MikroTik Router is capable of doing Load Balancing with Failover over multiple gateways. Policy Based Routing, ECMP, PCC and NTH Load Balancing are the popular load balancing methods in MikroTik Router. Among these methods, ECMP is so easy to configure and provides almost 100% load balancing and link redundancy solution. In my previous article, I discussed how to configure Load Balancing and Link Redundancy using ECMP over two equal bandwidth gateways. ECMP method is also capable of doing load balancing [...]
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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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MikroTik Hotspot Free Trial Internet Setup | August 14, 2020
MikroTik Hotspot is an awesome Hotspot internet solution. It has a lot of features to customize any Hotspot service. Sometimes we may require providing free trial internet in a Hotspot service. MikroTik Hotspot provides easy solution to provide free trial internet to the new user before going to paid version. In my previous article I discussed how to configure MikroTik Hotspot using Winbox. In this article I will discuss how to configure free trial internet in MikroTik Hotspot Server. Free [...]
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IP Based Virtual Hosting on CentOS 7 with Apache Server | July 18, 2019
Virtual Hosting is a method of hosting multiple domains on single web server. If you have multiple domains (such as domain1.com, domain2.com and so on) and want to host on single web server, Virtual Web Hosting is your right choice. Apache web server provides an easy way to manage Virtual Hosting. Virtual Hosting can be either Name Based or IP Based. In Name Based Virtual Hosting, multiple domains can be hosted on single IP address. On the other hand, in [...]
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Block Internet Access at a Certain Time in MikroTik RouterOS | August 1, 2024
We often find how to block or allow internet access at a certain time in our LAN network specially in WiFi network. Time based internet access is so useful for controlling Kids internet in any family or managing stuff internet accessibility in any office or other network. MikroTik RouterOS offers a feature named Kid Control to block internet access at a certain time. This feature is so useful for the parents or network engineers who want to block internet access [...]
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FreeRADIUS User Group Management with MySQL | January 3, 2019
FreeRADIUS is a high performance RADIUS Server. A number of network devices can be used with freeRADIUS Server as a RADIUS Client including MikroTik Router. As a modular RADIUS suite, freeRADIUS accepts MySQL module to query user authentication and authorization and to store accounting data. In my previous article, I discussed how to install and configure FreeRADIUS MySQL module. I also discussed how to authenticate MikroTik Login with freeRADIUS MySQL user. In this article, we will talk about how to [...]
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