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iis security
group:ports for NT challenge authentication
iis security:
I set up a couple pages using the NT challenge
authentication (with user names and passwords of the domain). It's working fine until the system admin. people moved the web server behind a firewall. Now whenever I tried o access these pages from outside, it showed 401.2 error. Guess I need to ask the admin. guys to open some port on the firewall. Roughly remember the port 443 needs to be opened. Tried that, but still same error. Can't find much information regarding the ports from MS website.
The whole problem here is that Windows Integrated authentication makes no
sense for clients that are outside the firewall, as it attempts to use the system logged on user for authentication. How can a remote client outside the firewall be logged onto the same domain as the web server behind the firewall? This authentication scheme is really best used in an intranet environment where all clients are behind the firewall and on the same Windows domain. -- Tom Kaminski IIS MVP http://www.iistoolshed.com/ - tools, scripts, and utilities for running IIS http://mvp.support.microsoft.com/ http://www.microsoft.com/windowsserver2003/community/centers/iis/ [quoted text, click to view] "Bernard" <qbernard@hotmail.com> wrote in message news:uCMTEZWjDHA.1728@TK2MSFTNGP11.phx.gbl... > Mmm.. and I would say - these port should ONLY > open to trusted network.... > > but I won't open it even I can trust them. it just too > risky.. don't you think so ? > > -- > Regards, > Bernard Cheah > http://support.microsoft.com/ > Please respond to newsgroups only ... > > > > "Desmond Lam [msft]" <deslam@online.microsoft.com> wrote in message > news:ekpzS2UjDHA.2516@TK2MSFTNGP09.phx.gbl... > > Port 80/443 is reqired to be open at the firewall for http/https access. > > Unless you are using Kerberos authentication, NTLM do not need additional > > ports to be open at the firewall between the web client and the web > server. > > > > If there is a firewall exist between web server and the domain controller, > > you may need to open the following ports for NTLM authentication to work: > > > > Client Port(s) Server Port Service > > 1024-65535/TCP 135/TCP RPC * > > 137/UDP 137/UDP NetBIOS Name > > 138/UDP 138/UDP NetBIOS Netlogon and Browsing > > 1024-65535/TCP 139/TCP NetBIOS Session > > 1024-65535/TCP 42/TCP WINS Replication > > > > > > Hope it helps, > > Desmond > > > > > > "James" <big2mouth@hotmail.com> wrote in message > > news:061401c38d0d$9a46fa60$a101280a@phx.gbl... > > > I set up a couple pages using the NT challenge > > > authentication (with user names and passwords of the > > > domain). It's working fine until the system admin. people > > > moved the web server behind a firewall. Now whenever I > > > tried o access these pages from outside, it showed 401.2 > > > error. Guess I need to ask the admin. guys to open some > > > port on the firewall. Roughly remember the port 443 needs > > > to be opened. Tried that, but still same error. Can't find > > > much information regarding the ports from MS website. > > > Could anyone kindly give me some hints? Thanks in advance. > > > > > >
The firewall is the issue when this is not working,
NTLM doesn't work with certain fw and it only support IE. refer this kb INFO: How IIS Authenticates Browser Clients http://support.microsoft.com/?id=264921 Try using basic with SSL certs. -- Regards, Bernard Cheah http://support.microsoft.com/ Please respond to newsgroups only ... [quoted text, click to view] "James" <big2mouth@hotmail.com> wrote in message news:061401c38d0d$9a46fa60$a101280a@phx.gbl... > I set up a couple pages using the NT challenge > authentication (with user names and passwords of the > domain). It's working fine until the system admin. people > moved the web server behind a firewall. Now whenever I > tried o access these pages from outside, it showed 401.2 > error. Guess I need to ask the admin. guys to open some > port on the firewall. Roughly remember the port 443 needs > to be opened. Tried that, but still same error. Can't find > much information regarding the ports from MS website. > Could anyone kindly give me some hints? Thanks in advance.
Port 80/443 is reqired to be open at the firewall for http/https access.
Unless you are using Kerberos authentication, NTLM do not need additional ports to be open at the firewall between the web client and the web server. If there is a firewall exist between web server and the domain controller, you may need to open the following ports for NTLM authentication to work: Client Port(s) Server Port Service 1024-65535/TCP 135/TCP RPC * 137/UDP 137/UDP NetBIOS Name 138/UDP 138/UDP NetBIOS Netlogon and Browsing 1024-65535/TCP 139/TCP NetBIOS Session 1024-65535/TCP 42/TCP WINS Replication Hope it helps, Desmond [quoted text, click to view] "James" <big2mouth@hotmail.com> wrote in message news:061401c38d0d$9a46fa60$a101280a@phx.gbl... > I set up a couple pages using the NT challenge > authentication (with user names and passwords of the > domain). It's working fine until the system admin. people > moved the web server behind a firewall. Now whenever I > tried o access these pages from outside, it showed 401.2 > error. Guess I need to ask the admin. guys to open some > port on the firewall. Roughly remember the port 443 needs > to be opened. Tried that, but still same error. Can't find > much information regarding the ports from MS website. > Could anyone kindly give me some hints? Thanks in advance.
Mmm.. and I would say - these port should ONLY
open to trusted network.... but I won't open it even I can trust them. it just too risky.. don't you think so ? -- Regards, Bernard Cheah http://support.microsoft.com/ Please respond to newsgroups only ... [quoted text, click to view] "Desmond Lam [msft]" <deslam@online.microsoft.com> wrote in message news:ekpzS2UjDHA.2516@TK2MSFTNGP09.phx.gbl... > Port 80/443 is reqired to be open at the firewall for http/https access. > Unless you are using Kerberos authentication, NTLM do not need additional > ports to be open at the firewall between the web client and the web server. > > If there is a firewall exist between web server and the domain controller, > you may need to open the following ports for NTLM authentication to work: > > Client Port(s) Server Port Service > 1024-65535/TCP 135/TCP RPC * > 137/UDP 137/UDP NetBIOS Name > 138/UDP 138/UDP NetBIOS Netlogon and Browsing > 1024-65535/TCP 139/TCP NetBIOS Session > 1024-65535/TCP 42/TCP WINS Replication > > > Hope it helps, > Desmond > > > "James" <big2mouth@hotmail.com> wrote in message > news:061401c38d0d$9a46fa60$a101280a@phx.gbl... > > I set up a couple pages using the NT challenge > > authentication (with user names and passwords of the > > domain). It's working fine until the system admin. people > > moved the web server behind a firewall. Now whenever I > > tried o access these pages from outside, it showed 401.2 > > error. Guess I need to ask the admin. guys to open some > > port on the firewall. Roughly remember the port 443 needs > > to be opened. Tried that, but still same error. Can't find > > much information regarding the ports from MS website. > > Could anyone kindly give me some hints? Thanks in advance. > >
U are right :)
Windows authentication is primarily designed for intranet environment. For internet-based deployment, use basic/SSL for authentication. cheers! [quoted text, click to view] "Tom Kaminski [MVP]" <tomk (A@T) mvps (D.O.T) org> wrote in message news:bm10mk$87g6@kcweb01.netnews.att.com... > The whole problem here is that Windows Integrated authentication makes no > sense for clients that are outside the firewall, as it attempts to use the > system logged on user for authentication. How can a remote client outside > the firewall be logged onto the same domain as the web server behind the > firewall? This authentication scheme is really best used in an intranet > environment where all clients are behind the firewall and on the same > Windows domain. > > -- > Tom Kaminski IIS MVP > http://www.iistoolshed.com/ - tools, scripts, and utilities for running IIS > http://mvp.support.microsoft.com/ > http://www.microsoft.com/windowsserver2003/community/centers/iis/ > > "Bernard" <qbernard@hotmail.com> wrote in message > news:uCMTEZWjDHA.1728@TK2MSFTNGP11.phx.gbl... > > Mmm.. and I would say - these port should ONLY > > open to trusted network.... > > > > but I won't open it even I can trust them. it just too > > risky.. don't you think so ? > > > > -- > > Regards, > > Bernard Cheah > > http://support.microsoft.com/ > > Please respond to newsgroups only ... > > > > > > > > "Desmond Lam [msft]" <deslam@online.microsoft.com> wrote in message > > news:ekpzS2UjDHA.2516@TK2MSFTNGP09.phx.gbl... > > > Port 80/443 is reqired to be open at the firewall for http/https access. > > > Unless you are using Kerberos authentication, NTLM do not need > additional > > > ports to be open at the firewall between the web client and the web > > server. > > > > > > If there is a firewall exist between web server and the domain > controller, > > > you may need to open the following ports for NTLM authentication to > work: > > > > > > Client Port(s) Server Port Service > > > 1024-65535/TCP 135/TCP RPC * > > > 137/UDP 137/UDP NetBIOS Name > > > 138/UDP 138/UDP NetBIOS Netlogon and Browsing > > > 1024-65535/TCP 139/TCP NetBIOS Session > > > 1024-65535/TCP 42/TCP WINS Replication > > > > > > > > > Hope it helps, > > > Desmond > > > > > > > > > "James" <big2mouth@hotmail.com> wrote in message > > > news:061401c38d0d$9a46fa60$a101280a@phx.gbl... > > > > I set up a couple pages using the NT challenge > > > > authentication (with user names and passwords of the > > > > domain). It's working fine until the system admin. people > > > > moved the web server behind a firewall. Now whenever I > > > > tried o access these pages from outside, it showed 401.2 > > > > error. Guess I need to ask the admin. guys to open some > > > > port on the firewall. Roughly remember the port 443 needs > > > > to be opened. Tried that, but still same error. Can't find > > > > much information regarding the ports from MS website. > > > > Could anyone kindly give me some hints? Thanks in advance. > > > > > > > > > > > >
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