[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [FW-1] How to block instant messenger traffic
That will probably have the exact opposite effect of what was requested. All you will accomplish by doing that is causing a ton of rejected out-bound mail and allowing all AIM traffic. The MX records aren't the AIM hosts and the default port isn't TCP/25. Chris -----Original Message----- From: Hal Dorsman To: [email protected] Sent: 2/5/02 3:50 PM Subject: Re: [FW-1] How to block instant messenger traffic > -----Original Message----- > From: Christopher Planell [mailto:[email protected]] > Sent: Tuesday, February 05, 2002 1:13 PM > To: [email protected] > Subject: Re: [FW-1] How to block instant messenger traffic > > > Another question I had was related to external e-mail > accounts, such as > aol.com or msn.com. Is there a way to block users from > having access to > their external e-mail accounts, without denying them access to aol.com > (example) all together? > Do an nslookup set type=mx and get a list of AOL's mail servers. Create a group with those objects. Block SMTP to that group. Allow http. Hal > -----Original Message----- > From: Aeon Hale [mailto:[email protected]] > Sent: Tuesday, February 05, 2002 2:10 PM > To: [email protected] > Subject: Re: [FW-1] How to block instant messenger traffic > > > default message port for AOL is TCP 5190, but you must block more than > that. Do nslookup for login.oscar.aol.com and block those IP's. You > can setup a rule before this AOL drop rule to allow only > certain IP's to > talk to AOL servers (or just exclude them in the same drop rule). As > far as allowing AOL internal and not external, i dont see how > that would > be possible since you need to log into AOL servers to use IM > and i'm not > sure you can block buddy lists. But i'm not an authority on AOL. > > Hope this helps, > > Aeon > > -----Original Message----- > From: Christopher Planell [mailto:[email protected]] > Sent: Tuesday, February 05, 2002 1:43 PM > To: [email protected] > Subject: Re: [FW-1] How to block instant messenger traffic > > > I would be interested on how to block AOL Instant messenger, and if > there is > a way to punch a hole to allow only certain users by IP address > (external > use). Also is there a way to allow internal use ONLY. > > -----Original Message----- > From: Chris Arnold [mailto:[email protected]] > Sent: Tuesday, February 05, 2002 12:29 PM > To: [email protected] > Subject: Re: [FW-1] How to block instant messenger traffic > > > Which one? There are quite a few to choose from. > > Chris > > -----Original Message----- > From: Fidel Atabong [mailto:[email protected]] > Sent: Tuesday, February 05, 2002 11.25 > To: [email protected] > Subject: [FW-1] How to block instant messenger traffic > > > I have users on my network abusing the instant messenger service. Does > any > one know how to block instant messenger? > > > Thank you, > > Fidel > > > > > _________________________________________________________________ > Send and receive Hotmail on your mobile device: http://mobile.msn.com > > ================================================= > To set vacation, Out Of Office, or away messages, > send an email to [email protected] > in the BODY of the email add: > set fw-1-mailinglist nomail > ================================================= > To unsubscribe from this mailing list, > please see the instructions at > http://www.checkpoint.com/services/mailing.html > ================================================= > If you have any questions on how to change your > subscription options, email > [email protected] > ================================================= > > ================================================= > To set vacation, Out Of Office, or away messages, > send an email to [email protected] > in the BODY of the email add: > set fw-1-mailinglist nomail > ================================================= > To unsubscribe from this mailing list, > please see the instructions at > http://www.checkpoint.com/services/mailing.html > ================================================= > If you have any questions on how to change your > subscription options, email > [email protected] > ================================================= > > ================================================= > To set vacation, Out Of Office, or away messages, > send an email to [email protected] > in the BODY of the email add: > set fw-1-mailinglist nomail > ================================================= > To unsubscribe from this mailing list, > please see the instructions at > http://www.checkpoint.com/services/mailing.html > ================================================= > If you have any questions on how to change your > subscription options, email > [email protected] > ================================================= > > ================================================= > To set vacation, Out Of Office, or away messages, > send an email to [email protected] > in the BODY of the email add: > set fw-1-mailinglist nomail > ================================================= > To unsubscribe from this mailing list, > please see the instructions at > http://www.checkpoint.com/services/mailing.html > ================================================= > If you have any questions on how to change your > subscription options, email > [email protected] > ================================================= > > ================================================= > To set vacation, Out Of Office, or away messages, > send an email to [email protected] > in the BODY of the email add: > set fw-1-mailinglist nomail > ================================================= > To unsubscribe from this mailing list, > please see the instructions at > http://www.checkpoint.com/services/mailing.html > ================================================= > If you have any questions on how to change your > subscription options, email > [email protected] > ================================================= > ================================================= To set vacation, Out Of Office, or away messages, send an email to [email protected] in the BODY of the email add: set fw-1-mailinglist nomail ================================================= To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================= If you have any questions on how to change your subscription options, email [email protected] ================================================= ================================================= To set vacation, Out Of Office, or away messages, send an email to [email protected] in the BODY of the email add: set fw-1-mailinglist nomail ================================================= To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================= If you have any questions on how to change your subscription options, email [email protected] =================================================
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