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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [FW-1] How to block instant messenger traffic
I don't think that is what Christopher is after. That would just block email going to those sites. What I think he wants is to stop a user from going to hotmail.com, AOL's web interface to email, etc. You could possibly use one of the filter programs. If you can identify the hosts used for those web based mail sites, you can block those. It will be an endless battle. This is one of those that needs to be a corporate policy and then enforced. -----Original Message----- From: Hal Dorsman [mailto:[email protected]] Sent: Tuesday, February 05, 2002 3:51 PM To: [email protected] 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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