• Home » kb
  • How to Setup Master Slave DNS Server on CentOS Server

    Posted at May 18, 2017 at 6:14 pm by Jithin

    In this tutorial we can check how to setup master slave DNS server on CentOS server.Domain Name System (DNS) is a distributed system that translates a domain name to IP address and vice versa. Steps to Install DNS serverInstall required RPM packages on both Master and slave servers.  # yum install bind bind-chroot 1)Setup master DNS server(ns1).a) Add the code below to configure the named.conf Vi /etc/named/named.confoptions {listen-on port 53 {; IP/24;   [...]

    Read More

    Create DNS GLUE records at United Domains

    Posted at May 12, 2017 at 11:38 am by John Quaglieri

    As of May 2017 it is not possible in the customer page to create DNS glue records at United Domains.To create dns glue records contact United Domains support by opening a new ticket.State your domain name and give the information for the dns glue records in the format of:ns1.test123.com ns2.test123.com Info: United Domains New Domains. New Opportunities. 210 Broadway, Suite 201/NGIN Cambridge, MA 02139 United States of America Phone: +1 (617)   [...]

    Read More

    How to Enable Temporary URL in WHM?

    Posted at March 30, 2017 at 10:43 pm by Jithin

    The temporary URL is used when the domain is in DNS propagation period. If you have just migrated your website from a different hosting provider, you may need to enable a temporary URL to verify if your site works before switching nameservers.  Apache’s mod_userdir allows users to view their sites by entering their server hostname followed by a tilde (~) and the website owner’s username.(Example: http://servername.com/~username.) To enable temporary URL, do the following st   [...]

    Read More

    CloudFlare: cPanel plugin Installation Guide

    Posted at February 27, 2017 at 6:42 pm by Jithin

    In this tutorial we can check how to install CloudFlare cPanel Plugin.CloudFlare is a commercial content delivery network which has integrated distributed denial of service(DDoS) defense mechanism. CloudFlare increases performance and security. A website that utilizes CloudFlare loads twice as fast than others. In this documentation, we are going to address how to install this plugin in cPanel and configure it. CloudFlare Installation InstructionsBefore we proceed to install Cl   [...]

    Read More

    How to install cPanel/WHM on CentOS 7

    Posted at December 13, 2016 at 11:30 am by Jithin

    In this tutorial we can check how to install cPanel on a CentOS 7 server. Before installing cPanel onto the server perl must be installed. For that, login as root and run the given below command:yum install perl -yThe next step is to set a host-name for the server. The host-name must be a full qualified domain name. For example: server.example.comhostname server.example.comIt is to be noted that the hostname setup must be owned by the user. Next change the directory to /home, to    [...]

    Read More

    What is DNS Cluster? The Structure and the Benefits

    Posted at November 29, 2016 at 1:46 pm by Jithin

    DNSDNS stands for domain name system and it resolves domain names to IP addresses. Since domain names are alphabetic, they're easier to remember by users. The internet works based upon IP addresses. When we use a domain name, therefore, a DNS service must translate the domain name into the corresponding IP address. For example, if we search the domain www.example.com in our browser it might translate to its corresponding IP address. The DNS system has its own network. If one DNS server doesn   [...]

    Read More

    About DNS Aging and Scavenging

    Posted at November 18, 2016 at 6:55 am by Jithin

    Aging and Scavenging is a DNS server service which supports a mechanism for performing clean-up and removal of stale resource records which can accumulate in zone data over time. It helps to maintain the dynamic DNS environment by regular deletion of stale resource records from the DNS database. Some problems associated with stale records are: unnecessary space utilization long zone transfers, wrong resolution of the client query due to stale data, and accumulation of stale records on the DNS se   [...]

    Read More

    DNSSEC Installation and Overview

    Posted at October 28, 2016 at 4:20 pm by Jithin

    DNSSEC stands for Domain Name System Security Extensions. It is a set of protocols or suite of extensions that provide a layer of security to the domain name system (DNS) lookup and exchange processes. Its main function is to provide authenticated DNS records from the authoritative name servers. DNSSEC is the extensions that can authenticate the origin of data sent from a DNS server, verify the integrity of data, and authenticate non-existent DNS data. It does not protect how data is distributed   [...]

    Read More

    Google Search Console Tips and Tricks

    Posted at October 14, 2016 at 3:58 pm by Jithin

    Location and LanguageExpansion of Internet world wide enabled all of us to connect to every nook and corner of the world to be interconnected at any time. Why can't we specify our locations and language or some sort of sharing of geographical details which enhances the communication among the people? This whole concept can be turned on in Google Search Console. ( previously known as Google Webmaster Tools )We can enable it in two ways:Through the Hreflang TagsCountry Targeting.    [...]

    Read More

    All Apache Tuning Parameters

    Posted at August 22, 2016 at 11:09 am by Jithin

    The default Apache settings that cPanel sets upon introduction are unquestionably something that can be enhanced. With a couple of little changes, the proficiency with which Apache keeps running with can be made to be more efficientApache can be tuned on the premise of two determinations: Settings which are Apache particular:1) Clear unused modules – spare memory by not stacking modules that you don't require, including however not constrained too mod_php, mod_ruby, mod_pe   [...]

    Read More

    Install and manage MyDNS in cPanel

    Posted at August 22, 2016 at 11:01 am by Jithin

    MyDNS is a DNS server software used in Linux servers. It is also referred as MyDNS-NG. MyDNS uses a database to store the server's DNS zone files. Therefore, it acts as an efficient nameserver for servers or DNS clusters that store large numbers of zone records.MyDNS requires the following minimum configuration to run on your cPanel & WHM server:1) cPanel & WHM version 11.32 or later.2) MySQL® version 5.0 or later.3) BIND: -BIND is a base requirement for cPanel & WHM   [...]

    Read More

    How to Add PTR Record

    Posted at July 8, 2016 at 2:14 pm by Jithin

    In this tutorial, we can check how to add a PTR record. PTR is also known as Reverse DNS. IP address to domain name mapping is the opposite of forward (normal) DNS which maps domain names to IP addresses. Reverse DNS differs from forward DNS by who points the zone to your DNS server. With forward DNS, you point the zone to your DNS server by registering that domain name with a registrar. With reverse DNS, your Internet connection provider (ISP) must point the zone to your DNS server. Ad   [...]

    Read More

    DNS Propagation Time

    Posted at July 8, 2016 at 2:13 pm by Jithin

    In this documentation, we can learn about DNS propagation time and the factors which affect DNS propagation time.DNS stands for domain name server and is used anytime we visit the internet. It is a lookup table that resolves internet web addresses to their IP addresses. DNS propagation occurs when we update the nameservers of our domain, move the domain name from one host to another, or from one server to another. Whenever the DNS changes it has to propagate completely. This process can take   [...]

    Read More

    How to Clear DNS Cache?

    Posted at April 4, 2016 at 3:22 pm by Jithin

    In this documentation, we can check how to clear DNS cache in different operating systems.  LINUX 1) Open the terminal.2) Use the following command to clear DNS cache. /etc/init.d/nscd restartOrservice nscd restartOrservice nscd reload  Windows 7 1) Click the ‘Start’ menu.2) Go to ‘All Programs’.3) Choose ‘Accessories’ and right click ‘Command Prompt’.4) Select ‘Run as Administrator’.5) Run the following command. i   [...]

    Read More

    Create Glue Records at GoDaddy | Register Nameserver

    Posted at March 16, 2016 at 4:20 pm by Jithin

    In this tutorial we can check how to create Glue Records at GoDaddy to register your private nameservers / vanity nameservers at GoDaddy. If you are not sure about Glue records, in simple words - Glue records will tell ISP’s to where to find the nameservers and will point them to right direction. Login to GoDaddy Domain Manager  2) Here you can see the list of Domains you own at GoDaddy. 3) Choose the domain that you wish to change the    [...]

    Read More

    How to Change NameServers at GoDaddy?

    Posted at March 16, 2016 at 4:20 pm by Jithin

    In this documentation, we can check how to change nameservers at GoDaddy.1) Login to GoDaddy Domain Manager  2) Here you can see the list of Domains you own at GoDaddy. 3) Choose the domain that you wish to change the nameservers for and click the gear icon on the right. Then choose "Manage DNS" 4) Now to go "Settings" then "manage" under "Nameservers" section. 5) If you haven't changed anything about your domain th   [...]

    Read More

    How to Configure Network Settings to use Google Public DNS

    Posted at January 1, 2016 at 2:52 pm by Jithin

    In this documentation, we can check how to configure your network settings to use Google public DNS. Google Public DNS IP addresses are the following:IPV4: Change DNS Server Settings:( Please save your current IP address somewhere before you proceed. So that you can revert back the changes if needed. ) Windows1) Go to Control panel >> Network and Internet >> N   [...]

    Read More

    DNS Management of Domains in Plesk

    Posted at December 15, 2015 at 7:01 pm by Jithin

    In this documentation, we can check how to manage the DNS of a domain in Plesk. 1) Login to Plesk admin panel.2) Click the ‘Domains’ button. 3) Click ‘Manage Hosting’ button near the domain name. 4) Go to ‘Websites & Domains’ tab. 5) Click the ‘Show More’ button of the domain. 6) Click the button ‘DNS Settings’. 7) Here we can see a list of DNS records currently setup for   [...]

    Read More

    DNS Management in Direct Admin

    Posted at December 11, 2015 at 4:51 pm by Jithin

    In this documentation, we can check how manage DNS in Direct admin. 1) Login to Direct Admin panel.2) Click the button ‘DNS Management’ from the section ‘Your Account’. 3) Here we can see the zone file of your domain. 4) If you want to delete any record, select the corresponding record and click ‘Delete Selected’ button. Common Records.NS – Nameserver record. Specifies the hostname that used to search for the d   [...]

    Read More

    How to Manage DNS Zone from WHM

    Posted at November 25, 2015 at 3:41 pm by Jithin

    In this documentation, we can check how to manage DNS zone from WHM. Add a DNS ZoneLogin to WHM. Navigate to Home » DNS Functions. Click the icon ‘Add a DNS Zone’. Here we can create DNS zone for the domain. Add IP address on the IP text box and domain name on the Domain text box in ‘Domain Selection’ section. We can see the list of domains and users in ‘Account Selection’ section. If the account is already appeared in the ‘Account Selecti   [...]

    Read More