JOY wrote:
In such a senario, one can presume that the server is located on the college premises and is permanently connected to the Internet.Actually I want to set a linux based intranet server at my college and the server should supports pop3,smtp for the employee with in the college (local domain) and should also supports sending and receiving mail from the outside. regards
for internal LAN based access the usual config files are good for restrictions and authentication.
for external access it is necessary to have a web-mail interface for access from cyber-cafes - though more expensive for those accessing from home computers. For access from home computers you can use some authentication protocol like Kerberos - it is built into the newer MS_Win platforms but needs configuring.
Httpd will need some device beyond config files as restrictions are usually based on fixed IP addresses or domains. For Apache, use any one of the mod_auth modules to do the trick. (mod_auth, mod_auth_dbm, mod_auth_db, mod_auth_digest, mod_auth_cookies are some commonly used ones - there are several others)
Also, firewalls would need to be opened-up appropriately for external access.
raja
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