Learn how to provision tenants, synchronize on-premise Active Directory, implement Single Sign-On, customize Office deployment, and protect your organization with eDiscovery and DLP policies. Only from Platform Scholar.
Solved
What ports should i open if i want to connect a server to a domain using SLDAP?
Posted on 2013-06-18
Hello,
I have a server that is in the DMZ network and i need to connect it as a member server of our Domain inside the LAN.
I know (Please correct me if i'm wrong) that the following ports should be opened from the server to all the DC's in the domain.
TCP 135 : MS-RPC
TCP 1025 & 1026 : AD Login & replication
TCP 389 : LDAP
TCP & UDP 53 : DNS
TCP 445 : SMB , Microsoft-ds
TCP 139 : SMB
UDP 137 & 138 : NetBIOS related
UDP 88 : Kerberos v5
My question is, If I want a secure connection (since it's in the DMZ), is it enough if i simply replace the TCP 389 port with 636 (SLDAP) port? Will I still need to open the remaining ports? and if so, is it still considered a secured connection (since i presume all other connections are not secured)
I have a server that is in the DMZ network and i need to connect it as a member server of our Domain inside the LAN.
I know (Please correct me if i'm wrong) that the following ports should be opened from the server to all the DC's in the domain.
TCP 135 : MS-RPC
TCP 1025 & 1026 : AD Login & replication
TCP 389 : LDAP
TCP & UDP 53 : DNS
TCP 445 : SMB , Microsoft-ds
TCP 139 : SMB
UDP 137 & 138 : NetBIOS related
UDP 88 : Kerberos v5
My question is, If I want a secure connection (since it's in the DMZ), is it enough if i simply replace the TCP 389 port with 636 (SLDAP) port? Will I still need to open the remaining ports? and if so, is it still considered a secured connection (since i presume all other connections are not secured)
[X]
Welcome to Experts Exchange
Add your voice to the tech community where 5M+ people just like you are talking about what matters.
- Help others & share knowledge
- Earn cash & points
- Learn & ask questions
-
2
- +1
5 Comments
Active today
Best thing to do would be to setup an RODC in the DMZ. you will have to open all the ports you mentioned plus 636SLDP and 3269GC.
check the link below.;
http://technet.microsoft.com/en-us/library/dd728028(WS.10).aspx
http://social.technet.microsoft.com/wiki/contents/articles/584.active-directory-replication-over-firewalls.aspx
check the link below.;
http://technet.microsoft.com/en-us/library/dd728028(WS.10).aspx
http://social.technet.microsoft.com/wiki/contents/articles/584.active-directory-replication-over-firewalls.aspx
Configure IPSEC between DC's for secure connections. please check the below links it will help you.
http://www.experts-exchange.com/Software/Server_Software/File_Servers/Active_Directory/Q_27023252.html
http://blogs.technet.com/b/luistog/archive/2012/05/08/restricting-ad-replication-traffic-between-dcs-to-only-a-few-ports.aspx
http://www.experts-exchange.com/Software/Server_Software/File_Servers/Active_Directory/Q_27023252.html
http://blogs.technet.com/b/luistog/archive/2012/05/08/restricting-ad-replication-traffic-between-dcs-to-only-a-few-ports.aspx
Thanks for both answers, RODC isn't an option since i'm using 2003.
I can use IPSEC, however here's my question.
I want to confirm that SLDAP isn't enough, i'll still need to open the remaining ports I've mentioned, however, from a security standpoint (not technical, since that one is explained in the articles you provided) it's a problem. are there any other secure ports to use if we want to go SLDAP? otherwise, what's the point of SLDAP if the remaining ports are not secured.
I can use IPSEC, however here's my question.
I want to confirm that SLDAP isn't enough, i'll still need to open the remaining ports I've mentioned, however, from a security standpoint (not technical, since that one is explained in the articles you provided) it's a problem. are there any other secure ports to use if we want to go SLDAP? otherwise, what's the point of SLDAP if the remaining ports are not secured.
Agree with Jaihunt and lruiz52. In addition I would suggest you to check these links as a reference, so that you can decide what to do SLDAP and its ports.
How A Criminal Might Infiltrate Your Network
This link is just reference: http://technet.microsoft.com/en-us/library/dd728030(WS.10).aspx
How A Criminal Might Infiltrate Your Network
This link is just reference: http://technet.microsoft.com/en-us/library/dd728030(WS.10).aspx
Featured Post
Question has a verified solution.
If you are experiencing a similar issue, please ask a related question
In this blog we highlight approaches to managed security as a service. We also look into ConnectWise’s value in aiding MSPs’ security management and indicate why critical alerting is a necessary integration.
Active Directory can easily get cluttered with unused service, user and computer accounts. In this article, I will show you the way I like to implement ADCleanup..
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008.
Determine the location of the FSMO roles by lo…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Suggested Courses
Course of the Month15 days, 8 hours left to enroll
647 members asked questions and received personalized solutions in the past 7 days.
Join the community of 500,000 technology professionals and ask your questions.