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DNS Server Configuration on CentOS 7 (Caching DNS with BIND)
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 will discuss how to configure a caching DNS Server on CentOS 7/ RedHat 7 Linux with BIND9 Service. Domain Name System (DNS) and How It Works Communication between a workstation (PC) and a Server are always done by IP address. So, to get any information from any Web Server, you have to remember the IP address of that Server. But remembering a huge number of public IP addresses is almost impossible for the human being. To solve this issue, DNS technique is introduced in computer networking. The DNS technique can be best compared to a phone book where a user finds a phone number listed by the easier-to-remember name. So, the DNS can be defined as a mapper between human [...]
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How to Add New Domains to BIND DNS Server | July 5, 2019
DNS (Domain Name System) Server is an essential part to any computer network. So, it is always suggest keeping a DNS Server in every network. How to configure a DNS Server with BIND package was discussed in my previous article. A common question among the fresher admins of BIND DNS is how to add a new domain to BIND DNS Server. For this, this article is designed to discuss the proper way to add multiple domains to BIND DNS Server. [...]
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MikroTik UserMan RADIUS Server Customers, Users and Routers | November 13, 2017
MikroTik User Manager RADIUS Server is a centralized user authentication and accounting application that gives the ISP Company or network administrator ability to manage MikroTik RouterOS user, PPP user and Hotspot user so smoothly. There are two methods to install MikroTik User Manager RADIUS Server in your network. You can install User Manager Package either on a physical RouterOS or on a dedicated Server Machine or on a Personal Computer where RouterOS is running. How to install and configure User [...]
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FreeRADIUS MySQL Database GUI with phpMyAdmin on CentOS 7 | January 30, 2019
FreeRADIUS is a high performance RADIUS Server that accepts a large number of networking devices as RADIUS Client including MikroTik Router. MySQL is one of the best user sources for freeRADIUS server. In my previous article, I discussed how to install freeRADIUS server on CentOS 7 and how to integrate MySQL module with freeRADIUS server. I also discussed how to create user group and profile in MySQL database server and authenticate MikroTik PPPoE client with MySQL database user. I used [...]
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MikroTik Hotspot Customized Login Template | April 14, 2022
MikroTik Hotspot is a popular service which is used to manage ISP, Hotel, Restaurant, Airport, and Public WiFi. Using billing application like GalaxyRAD with MikroTik Hotspot, a WiFi network can manage professionally. MikroTik Hotspot loads a login page for new user authentication. So, this login page is a vital source for promoting your brands. The default login template provided by MikroTik Hotspot is a simple template which cannot fulfill branding requirements. But it is possible to customize the login template [...]
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How to Install Extra Packages in MikroTik RouterOS | October 10, 2019
MikroTik RouterOS does not always include all the packages those are developed by MikroTik team. So, sometimes you may find that some packages are missing in your RouterOS such as NTP package, DUDE package, Wireless package, CAPsMAN package and so on. Specially, user manager package which is totally a separate MikroTik RADIUS package used to manage user authentication, authorization and accounting is always missing. Also upgrading RouterOS or downgrading RouterOS you may find that some packages are missing there. So, [...]
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Setting Google as Default Search Engine | September 30, 2015
Google is one of the most popular search engines to any online user. It is said that no online user cannot go a single day without Google search engine. Google search statistics shows that over 40,000 search queries are processed every second by Google. If you have any query about any subject, just type in Google search box and Google will show you billion of results related to your search query within less than a second. So, usually you will want [...]
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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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CAPsMAN Channel Planning with Non-Overlapping Frequency | March 16, 2020
MikroTik CAPsMAN is an excellent application for managing multiple CAPs (Controlled Access Point) in a Wireless Network. But multiple APs create frequency overlapping issue if channels are not configured properly. Channel overlapping is required for smooth connection while roaming but there should not be frequency overlapping because frequency overlapping makes wireless performance so poor. In my previous article, I discussed MikroTik CAPsMAN basic configuration with default channel configuration. In this article, I will discuss how to configure CAPsMAN channel to [...]
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Smart Camp WiFi Management with MikroTik and GalaxyRAD API | March 31, 2026
In today’s digital-first world, reliable internet access is essential—even in environments like worker camps, training camps, educational programs, and large events. However, managing WiFi in such dynamic setups can be complex. That’s where GalaxyRAD API-powered applications step in—delivering a fully automated, scalable, and intelligent Camp WiFi Management Solution with MikroTik Hotspot. 🌐 Why Camp WiFi Needs a Smart Solution Traditional Hotspot WiFi systems fail in camp environments due to: Frequent user onboarding & offboarding from camp to camp Limited bandwidth [...]
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