Eicon Networks S92 Manual do Utilizador descarregar pdf (Página 161)

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

Page 161

n nonHTTP/HTTPStrafficfromInternal_Clients.

n nonHTTP/HTTPStrafficfromRAS_Net.

n HTTP/HTTPStrafficfromanewunknownsubnet.

Initiatethefollowingconnectionstowardstheexternalemailserviceserver:

n nonSMTPtrafficfromtheinternalserversegment

n POP3 trafficfromtheinternalclientssegment

Allconnectionsfailed.Thisisthedesirableresult.

InitiatethefollowingconnectionstowardstheexternalDNSserviceserver:

n nonDNSquerytrafficfromInternal_Dev.

n nonDNSquerytrafficfromInternal_Clients.

n nonDNSquerytrafficfromRAS_Net.

Allconnectionsfailed.Thisisthedesirableresult.

InitiatenonSMTPconnectionstowardstheinternalemailserverfromtheIDS.

Connectionssucceeded.Thisisthedesirableresult.

InitiateSMTPconnectionstowardstheIDSfromtheinternalemailserver.

Connectionsfailed.Thisisthedesirableresult.

DeliberatelytriggertheIDStosendanalert.Seeifthemessagecanreachthe

internalSMTPserver.

Messagearrivedattheadministrator’smailbox

successfully.

Otherassessmentmethods

NSLOOKUP –initiateazonetransferagainsttheDNSserverbehindthefirewall

frominternal_clients. AccordingtoMicrosoft’sKBArticleQ200525:

Thezonetransferoperationfails.Suchafailureisa

desirablebehavior.Attemptlogged.

47

http://support.microsoft.com/search/preview.aspx?scid=kb;enus;Q200525

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Eicon Networks S92 Manual do Utilizador Página 161