Eicon Networks S92 Instrukcja Użytkownika Pobierz pdf (Strona 110)

YuChakTinMichael‘sGIACGCFWProjectAssignment

Page 110

ProtocolRules:

ProtocolrulesinISAServerdeterminewhichprotocolsclientscanusetoaccessthe

internet. Theprotocolsthattheusersusemustbecarefullyselected.Rulesareapplied

toallowoutboundrequestsonlyontheseprotocols.

Theseprotocolsareapplicationspecific.Forexample,AOLMessengerandICQuse

differentprotocols.Whetherornot theseapplicationsareallowedisamatterof

companypolicy,andisoutofthescopeofthisproject.Tobecertain,thefollowing

protocolsarealmostalwaysneeded:

n HTTP

n HTTPS

n FTP

n SMTP

n POP3

n IMAP

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