RE: External clients & firewall not in a domain

  • From: "Varga Pavol" <pavol.varga@xxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Fri, 5 Sep 2003 15:40:45 +0200

No, we haven´t.
 
>Do you have any type of firewall in place besides the ISA server?
 
Regards!

        -----Original Message-----
        From: Mike Liddekee [mailto:mliddekee@xxxxxxxxx] 
        Sent: Friday, September 05, 2003 3:03 PM
        To: [ExchangeList]
        Subject: [exchangelist] RE: External clients & firewall not in a domain
        
        
        http://www.MSExchange.org/
        

        The only way for outlook to log in from the outside (even though you 
already have the ip open) is to have several ports open at that address.  
However opening those ports blindly to the internet == BAD.  Repeat after me... 
"I will not open up my network to hackers"

         

        Since you're using Exch2K, You would have really two options:  1) VPN 
and 2) OWA.  Of course I guess you could do dial-up RAS but does anybody 
actually still use that stuff?  :-)

         

        We use a combination of VPN & OWA here at our facility and have a 
number of users who travel frequently with laptops.  Do you have any type of 
firewall in place besides the ISA server?

         

         

        Regards,

        Mike Liddekee

        Network Engineer

         

        Humco Holding Group, Inc.

        7400 Alumax Dr. 

        Texarkana, TX  75501

        Ph:  (903) 831-7808 ext 697

         

        -----Original Message-----
        From: Varga Pavol [mailto:pavol.varga@xxxxxxxxxxx] 
        Sent: Friday, September 05, 2003 1:11 AM
        To: [ExchangeList]
        Subject: [exchangelist] RE: External clients & firewall not in a domain

         

        http://www.MSExchange.org/

            Hello Tom,

            we use M$Outlook 2000, and we want access ours mailboxes for 
e-mailing.

            Regards!

            Pavol.

         

            

                -----Original Message-----
                From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxxxxxxxxx] 
                Sent: Thursday, September 04, 2003 9:44 PM
                To: [ExchangeList]
                Subject: [exchangelist] RE: External clients & firewall not in 
a domain

                http://www.MSExchange.org/

                Hi Varga,

                 

                What services do you want to access from the external Outlook 
client? What version of Outlook are you using?

                 

                Thanks!

                Tom

                 

                 

                Thomas W Shinder

                www.isaserver.org/shinder <http://www.isaserver.org/shinder>  

                ISA Server and Beyond: http://tinyurl.com/1jq1

                Configuring ISA Server: http://tinyurl.com/1llp 
<http://tinyurl.com/1llp> 

                 

                        -----Original Message-----
                        From: Varga Pavol [mailto:pavol.varga@xxxxxxxxxxx] 
                        Sent: Thursday, September 04, 2003 2:29 PM
                        To: [ExchangeList]
                        Subject: [exchangelist] External clients & firewall not 
in a domain

                        http://www.MSExchange.org/
                        
                        

                                
                                Hi all, 
                                please, how to configure firewall (which is not 
in domain) and Exchange 2k Server (with internal IP) to allow external client 
access to their mailboxes?

                                
                                I have already set: 
                                Exchange 2k Server 
                                - Active 
Directory\Users\Properties\Dial-in\Remote Access Permission (Dial-in or 
VPN)\Allow access & No Callback

                                ISA Server (firewall & proxy server, not in a 
domain) 
                                - Access Policy: 
                                        Mail wizard rule SMTP, SMTPs 
                                        outgoing smtp, pop3, imap4 
                                        ssh, imcp, dns 
                                        + IP Packet filters VPN (PPTP, L2TP), 
DHCP, DNS, ICMP 

                                I was trying also to configure Outlook account 
with external IP of firewall = Outlook could not logon. 
                                Is VPN configuring both client and servers only 
way to resolve it? And how? 

                                Thank for any advice. 

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