In a network if there is only one Domain controller and one DNS server in placed, in failure of that servers there will not have any way to log back in to domain. And also due to failure on DNS users will face routing issues even with internet. So to avoid from such issue the option is to setup new server as additional domain controller and replicate DNS records with it. This can use as secondary…
Sometime to maintain network hierarchy in a domain environment you may need to create child domains. I have seen in various occasions its called as "sub domain" as well. But the microsoft recommended term for this is "Child Domain".
In a domain environment child domains can be use on separate departments, branches. it can be in different geographical areas or even in same…
This is the main and commonly used name resolution technique in modern computer networks. There are two main name space principles, the domain name hierarchy and IP space. DNS represents the domain hierarchy and provide translation services for it and IP name spaces. DNS servers will keep records about hostnames along with the ip addresses and depend on the queries it will translate IP addresses…
As a network administrator, network student its important to have clear understanding over the OSI model. Also its important to understand its process through network process.
In this post i will explain a simple IT process using OSI model. Lets assume your HR Manager sends an email to Head of IT by using her email client regarding a meeting. let's see how the email will deliver through the 7…
