Solved

closing ports 135 (msrpc) & 139 (netbios-ssn)

Posted on 2004-10-02
6
4,969 Views
Last Modified: 2013-12-04
According to nmap, the following ports are open on my computer:

135/tcp  open     msrpc
139/tcp  open     netbios-ssn


My understanding is the msrpc is the server that formerly was vulnerable to the msblast worm, so I'd like to disable it. I probalby don't need it open, right? How can this be done?

Also, is there a reason not to disable the netbios-ssn process? If so, how can I stop the process from running?

Thanks.
0
Comment
Question by:bobwood2000
  • 3
  • 2
6 Comments
 
LVL 2

Expert Comment

by:dev8
ID: 12210155
You can prevent these ports from being exploited by simply running a firewall such as Zone Alarm (http://www.zonelabs.com/store/content/catalog/products/sku_list_za.jsp).  They will block any TCP port 135/139 traffic.  
0
 

Author Comment

by:bobwood2000
ID: 12210681
I don't want to use a firewall.
0
 

Expert Comment

by:sosor
ID: 12213417
Try disabling the file & Printer sharing
0
New! My Passport Wireless Pro Wi-Fi Mobile Storage

Portable wireless storage to offload, edit, and stream anywhere.

High-capacity, wireless mobile storage designed to accompany professional photographers and videographers in the field to easily offload, edit and stream captured photos and high-definition videos.

 

Author Comment

by:bobwood2000
ID: 12214979
I disabled file & printer sharing, but the ports remain open.
0
 
LVL 2

Accepted Solution

by:
dev8 earned 250 total points
ID: 12217378
0
 

Author Comment

by:bobwood2000
ID: 12218064
Thank you.
0

Featured Post

Backup Your Microsoft Windows Server®

Backup all your Microsoft Windows Server – on-premises, in remote locations, in private and hybrid clouds. Your entire Windows Server will be backed up in one easy step with patented, block-level disk imaging. We achieve RTOs (recovery time objectives) as low as 15 seconds.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Many people tend to confuse the function of a virus with the one of adware, this misunderstanding of the basic of what each software is and how it operates causes users and organizations to take the wrong security measures that would protect them ag…
In a recent article here at Experts Exchange (http://www.experts-exchange.com/articles/18880/PaperPort-14-in-Windows-10-A-First-Look.html), I discussed my nine-month sandbox testing of the Windows 10 Technical Preview, specifically with respect to r…
Learn how to create flexible layouts using relative units in CSS.  New relative units added in CSS3 include vw(viewports width), vh(viewports height), vmin(minimum of viewports height and width), and vmax (maximum of viewports height and width).
Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to us…

867 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

20 Experts available now in Live!

Get 1:1 Help Now