http://en.wikipedia.org/wiki/Domain_Name_System
This answer will make sense if you have read the answer to Question 1.
To have your own domain name, say myschool.edu.ph, in the Internet you must do two things:
PHNET is the one and only registry for the EDU.PH domain name. PHNET runs the authoritative DNS servers for EDU.PH. Anyone who wants a domain name under the EDU.PH domain must register with PHNET. By registering myschool.edu.ph with PHNET, the domain name is recognized in the entire Internet as an existing domain name. Hence, item 2.1 is necessary. Only PHNET can provide this service.
To be able to register your domain name with PHNET, you must identify at least two DNS servers for your domain myschool.edu.ph. These servers will be contacted in order to resolve the names under myschool.edu.ph such as www.myschool.edu.ph.
Some institutions do not have the resources (e.g. machines, technical personnel) to operate their own DNS servers. We created the PHNET DNS Hosting Service to serve the needs of such institutions. PHNET will run and operate the DNS servers for your domain name so that you do not have to invest in the necessary infrastructure for your DNS. PHNET will run the DNS servers for your domain name with the same degree of reliability and availability as we run the EDU.PH DNS servers.
Any institution can contract PHNET for a DNS Hosting service. Although we have developed our system primarily to help the edu.ph institutions, PHNET can and does provide DNS hosting services for other domains for the same low fees.
Your service will be approved and will begin on the same working day that you complete all of the above steps. Our system will send an e-mail to both the technical and administrative contacts of your domain when the service is approved.
Our system automatically e-mails the Form after a request is
triggered through http://services.ph.net/dnshosting. If you have
not received the Form(s) after
a reasonable amount of time, the e-mail address you used is probably
not reachable through the Internet.
Sometimes, people registering their school's new domain name choose e-mail addresses which use the domain name they are registering. For example, myschool.edu.ph will use an e-mail address of president@myschool.edu.ph for its contact address. Obviously, because myschool.edu.ph does not yet exist (this is why it is being registered), then any e-mail address which has @myschool.edu.ph is not valid and will never receive any e-mail from our system.
Please ensure that the e-mail address you use is reachable through the Internet before doing anything else.
Our DNS server has to be configured with the DNS entries for your domain. The Form sent by our system contains the lines "START OF DNS RECORDS:" and "END OF DNS RECORDS:". You should put your DNS entries between those two lines. If you don't put any DNS entries between those two lines, our system will reject your e-mail.
What DNS entries should you put between those two lines? Please read this example to give you an idea. You may want to just cut and paste the contents of that page into your e-mail. Don't forget to tailor the example for your own domain!
Other than the DNS entries, you should not modify the e-mail we sent you. Our system rejects such e-mail which had been modified. When the e-mail has been modified, it is impossible for us to determine who made the modification and for what reasons. It could have been your mailer making slight modifications or it could have been a third-party changing the important DNS information. To prevent the latter, we assume the worst and just invalidate Forms which had been modified - no matter how slight the modifications.
If you did not modify the Form, then your mail system probably did. Does your mail system use HTML format? Does it insert spaces or other characters to the e-mail you reply to? Does it automatically truncate or linewrap text after a certain length? Read more on this topic here.
You may modify the domain information as often as you need to. There are no charges for modifying your DNS Hosting information. Note however that DNS Hosting information does not include the domain name. Domain names can not be modified. To modify your DNS information, just follow these steps: