Solved

opening tcp port on a windows 2003 server

Posted on 2013-01-29
6
506 Views
Last Modified: 2013-05-02
I have a windows 2003 server that is not responding on port 88. I have verified that the firewall is off and that the antivirus is disabled. after generating a report using netstat -ano I find that UDP port 88 is open and listening but TCP port 88 is not listed as an active connection. Is there a way to get the server to listen on TCP port 88 as well?

Thanks

Jim
0
Comment
Question by:jfholloway
  • 4
  • 2
6 Comments
 
LVL 33

Expert Comment

by:paulmacd
Comment Utility
The Server itself won't be listening on any port.  There has to be a service that listens.  What service are you running that listens on port 88 and are you sure it's running?
0
 

Author Comment

by:jfholloway
Comment Utility
I need port 88 for Kerberos traffic between domain controllers. I see it is active on one DC but, not on the other which is causing replication issues. I see on the one DC that port 88's PID is 416 and that PID is associated with lsass.exe. I am not sure why one DC has a servcie that is actively listening but, the other doesn't has a service that is listening on that TCP port.

That does explain why I can telnet to the server that is listening on port 88 but, not to the one that doesn't.

Is there a way that I can fix this on the DC that isn't working?
0
 
LVL 33

Expert Comment

by:paulmacd
Comment Utility
When troubleshooting DC/AD issues, the best thing to do is run a DCDIAG.  That will usually steer you in the right direction.

Also, any error log information can give you an idea where to look.
0
How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

 

Author Comment

by:jfholloway
Comment Utility
I have 2 DC's in the domain and the one has tombstoned based on the dcdiag reports I collected last week. After I reset the secure channel password I was able to get DNS back online. Right now I can't replicate, dcpromo the server because it can't communicate with the other DC and I can't transfer(or seize) the FSMO roles from the bad DC to the good one because of communication errors which led me to isolate which ports were and weren't responding.
According to TCPview and netstat the bad server (service) is not listening on the required ports for A.D. and the KCC to communicate properly. I believe if I can get communication working on TCP ports 88, 123, 137, 138, 139 and 3268 I can possibly remove the lingering objects and continue replication.

Any suggestions on where I can look to see why the server service isn't listening on the needed ports?
0
 
LVL 33

Accepted Solution

by:
paulmacd earned 500 total points
Comment Utility
If there's no firewall or other impediment to communication, it seems likely the service isn't running.  Check that.  Check the error logs for any information that might offer insight.

If you can't get the problem DC to communicate, you can seize the roles it holds (the whole point of seizing is to recover from a failed DC).
0
 
LVL 33

Expert Comment

by:paulmacd
Comment Utility
Thank you for the points, but I'm curious about the "C" grade.  Was the answer not satisfactory?
0

Featured Post

Find Ransomware Secrets With All-Source Analysis

Ransomware has become a major concern for organizations; its prevalence has grown due to past successes achieved by threat actors. While each ransomware variant is different, we’ve seen some common tactics and trends used among the authors of the malware.

Join & Write a Comment

On July 14th 2015, Windows Server 2003 will become End of Support, leaving hundreds of thousands of servers around the world that still run this 12 year old operating system vulnerable and potentially out of compliance in many organisations around t…
Citrix XenApp, Internet Explorer 11 set to Enterprise Mode and using central hosted sites.xml file.
Windows 8 comes with a dramatically different user interface known as Metro. Notably missing from the new interface is a Start button and Start Menu. Many users do not like it, much preferring the interface of earlier versions — Windows 7, Windows X…
With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now