Basic Information about Internet:
| Q1： |
What is a Mail Server? |
| Q2： |
What is FTP? |
| Q3： |
What is a Gateway? |
| Q4： |
What is DNS? |
| Q5： |
What is a Proxy Server? |
| Q1： |
What is a Mail Server? |
| A1： |
A Mail Server is responsible for receiving and sending your mails. All emails you send and receive have to go through the server. The NTU has 2 email servers so when you need to use either Netscape or Outlook to send and receive emails, the mail server settings are as follows :
For faculty members: ccms.ntu.edu.tw, Email Address is: xxxxx@ccms.ntu.edu.tw
For students: ms.cc.ntu.edu.tw, Email Address is: xxxxx@ms.cc.ntu.edu.tw
xxxxx is your account name.
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| Q2： |
What is FTP? |
| A2： |
FTP is an abbreviation for file transfer protocol. As implied by the name, it is a command used for file transfers. FTP is not confined to some specific operating systems (such as UNIX), as long as a specific protocol (TCP/IP protocol) is followed file transfers can even be done across different operating systems, such as between UNIX and MS-DOS. As a result of the powerful functions of FTP, you have to understand FTP in using the Internet. FTP can bring into play the powerful functions of the Internet and achieve the goals of information flows.
Also, a lot of software is found on the Internet. Software can be as small as some simple but easy to use tool programs or as large and complete as operating systems. You can also find academic papers, technical documents, original code of all kinds of programs, graphic files, sound files, and animation files on the Internet. These are the so-called shareware, which are free of charge and can be copied without violating the laws. So, how can I get all these?
Please learn FTP!
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| Q3： |
What is a Gateway? |
| A3： |
As there are many machines in the University, they are divided into different domains. For example:
The IP address of the C&INC workstations is 140.112.8.xxx, and therefore the workstations are on the NTU .8 domain. Every domain has a gateway that connects with other domains and each gateway needs to use an IP address. The gateways are regularly set at 254 of each domain, therefore, the IP address of the gateway on the .8 domain is 140.112.8.254.
The gateways for other domains would therefore be 140.112.xx.254, where xx is your domain.
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| Q4： |
What is DNS? |
| A4： |
IP addresses are usually difficult to remember; therefore, it is easier to give your machine a name, and then register it on the DNS so that others can find you via the DNS. Of course the users must register with network administrators for them to configure your DNS in the network environment.
NTU (Primary) DNS: 140.112.254.4 (Secondary) DNS: 140.112.2.2
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| Q5： |
What is a Proxy Server? |
| A5： |
A Proxy Servers is not a basic setting for the Internet environment; it is designed to speed up the information retrieval of the browsers (IE or Netscape). If someone else has already viewed the information that you are going to view now, your machine does not need to retrieve the information from the computer of which the information is stored, but retrieve it directly from the Proxy Server. The setting method of NTU Proxy Server is:
- IE 5.x: Go to [Tools] → [Internet] → [Connect] → [LAN Setting] → [Use Auto-Proxy Script] → and fill in http://proxy.ntu.edu.tw/pac/ntu.pac at “Website”
- Netscape Navigator 4.x: Go to [Edit] => [Function Setting] => [Advanced] => [Proxy Server], and fill in http://proxy.ntu.edu.tw/pac/ntu.pac
- For settings for other systems please refer to General User Setting in NTU Network Caching Service. If other Proxy Servers are open you can also set on those proxy servers.
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