Yet another blog about Monkeys and IT
Posts tagged DNS
DNS Caching at a glance
Apr 14th
What is DNS Caching?! DNS caching is a mechanism that enables a client or a server DNS resolutions queries to be saved locally for a set timeframe on that DNS server or client. A DNS query is a request for name resolution that is sent to a DNS server to resolve a name-to-IP-address.
Since Caching stores the information obtained through a previous query locally it improves DNS performance and substantially reduce DNS related traffic on the network. It eliminates the need for repetitive queries to the remote DNS server.
The period of time or TTL (Time to Live) of which the DNS cached query may be stored in the DNS cache, either on the client side or on the server side, is determined by the authoritative server of that resource record. This value applies to all cached DNS resource records and it will be removed once expired regardless if the same record entry accessed before the TTL expires. (more…)
Configuring DNS Zones
Feb 20th
DNS Zones types at a glance:
DNS has a hierarchical structure tree called “DNS namespace” that allows it to support any size of networks (The local network, the Internet for examples) without any concerns about scalability. The root domain can have many subdomains and the subdomains can have other sub-subdomains.. etc. Any organization can use private DNS namespace within the organization without making it visible to the outside (internet) .
Domain name servers DNS store information about portion of the domain namespace called a “zone” which is a contiguous portion of the (more…)
Installing DNS server on a standalone or member server
Feb 16th
DNS Domain Name System (or Service or Server) is a name resolution service that resolves (interpret, translate) human friendly addresses such as nj180degree.net into IP addresses such as 172.16.10.1, this process is usually called Name Resolution.
Without name resolution it would be quit a hassle to locate the exact IP addresses of your resources in an IP internetworked system to access them especially when you run a Dynamic Host Configuration Protocol service on the network that will change the IP addresses of your networked devices quit constantly. (more…)
Installing and Configuring DNS Server in Windows Server 2003
Feb 21st
Please note before you start with the installation you MUST configure the server with a static IP address, otherwise the installation wizard prompts you to configure the server with a static IP address during the installation process.
Installing DNS Server on windows Server 2003:
To install DNS server you may choose one of the two following methods:
* Installing DNS Server through Control panel :
- Click Start ==> Setting ==> Control Panel ==> Add or Remove Programs.
- Click on Add/Remove Windows Components from Add or Remove Programs menu.
- On Windows Components click on “Networking Services” and then click Details.
- On Networking Services details select the Domain Name System (DNS) check box, click OK and then click Next.
- Click Finish once the installation finished. (more…)
