The question has nothing to do with the builtin windows firewall. For more information, please refer to the following Microsoft TechNet article:. SMB: File and printer sharing ports should be open. Arthur Li. TechNet Community Support. As it relates to opening firewall ports the minimum requirement is:. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware.
For more information, see Protect my PC from viruses. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No. Any additional feedback? Important If you set up a firewall to help protect computer ports that are connected to the Internet, we do not recommend that you open these ports because they can be exposed to other computers on the Internet. Events Expand your network with UpGuard Summit.
Newsletter Get the latest curated cybersecurity updates. In short, the SMB protocol is a way for computers to talk to each other. SMB 2. What are Ports and ? Are Open Ports Dangerous? This means WannaCry can spread automatically without victim participation.
How to Keep Ports and Secure Here are some other ways you can secure port and UpGuard Can Secure Your Open Ports UpGuard can protect your business from data breaches , identify all of your data leaks , and help you continuously monitor the security posture of all your vendors.
Reviewed by. Kaushik Sen Chief Marketing Officer. Free eBook. Learn the corporate consequences of cybercrime and who is liable with this in-depth post. Download eBook. Learn more Download our free ebooks and whitepapers Insights on cybersecurity and vendor risk management.
View resources. Attack Surface Management. Book a free, personalized onboarding call with one of our cybersecurity experts. Contact sales. Related posts Learn more about the latest issues in cybersecurity.
The Top Cybersecurity Websites and Blogs of This is a complete guide to the best cybersecurity and information security websites and blogs. Learn where CISOs and senior management stay up to date. Abi Tyas Tunggal December 29, Cybersecurity metrics and key performance indicators KPIs are an effective way to measure the success of your cybersecurity program.
What are Security Ratings? This is a complete guide to security ratings and common usecases. Learn why security and risk management teams have adopted security ratings in this post. Abi Tyas Tunggal October 18, For most of us, Windows 9x is thankfully ancient history. The vast majority of us deal with Windows and XP these days, and the way these versions of Windows handle File Sharing is significantly different. This enhancement allowed for a few benefits, such as less clutter in the protocol stack, a lack of NetBIOS broadcasts, and the ability standardize on DNS entirely for name resolution.
As can be expected, most of the functions taken care of by ports when NetBIOS was used are now taken care of by the single port This means that not only file and print sharing take place over , but also network browsing functionality and RPC.
The service responding first will be accepted and continued, i. Well, that about sums it up. The goal here was to either refresh or bring up to speed anyone who deals with Windows networking on a daily basis. For one reason or another, there is quite a bit of confusion surrounding the technologies that allow File Sharing to take place on a Windows machine.
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