|
Server is a dedicated computer performing certain job to assist other computers.
Server can be a very simple computer doing only one simple job, such as a print
server, or it could be a very sophisticated computer serving Internet. Server
can be stand alone, or working as a group.
Most servers once turned on would hopefully never shut down. Some server
may need neither a keyboard nor monitor.
Whenever there are several computers exchanging information,
there is a demand of a server. For example, a super market checkout is using
point of sales system. If a centralized server does not run the POS, then it
won’t be able to keep track the point of sales.
A file server is a centralized file storage system. Multi
level security is vital in an office with many employees. All information
accessed by staff can be log. Many offices distributed all over the world can be
linked together through Internet at minimum cost. Confidential information is
tunneling through public network with no compromise on security.
Internet server needs high security to prevent hackers
breaking in. It has firewall, proxy, IP masquerading, Spam filters, and many
sophisticated features. It also equipped with domain name service, Internet
information server, index server, etc. E commerce server requires data base
management ODBC, query SQL, CGI, and many high quality services. Long distance
phone call, fax can be transmitted through Internet as if local calls. Students,
employees can login to server computer for download, upload information
regardless of distance and cost.
Unix, BSD, Linux type operating system is mainly used on most
TCP/IP type servers. Windows NT, Novell are also commonly used on IBM net bios,
Novell IPX type servers.
The Internet you are browsing now is running on Linux Red hat
6.2 with a Dual Intel PII Symmetric Multi Processor server assemble by Hi-Tech.
We are specialized on servers.
|
