What ports should I block on my Firewall?

What ports should I block on my Firewall?

For example, the SANS Institute recommends blocking outbound traffic that uses the following ports:

  • MS RPC – TCP & UDP port 135.
  • NetBIOS/IP – TCP & UDP ports 137-139.
  • SMB/IP – TCP port 445.
  • Trivial File Transfer Protocol (TFTP) – UDP port 69.
  • Syslog – UDP port 514.

What ports does the box COM use?

boxcloud.com and . boxcdn.net. The ports used on these domains are 80 and 443.

How do I block ports in Windows Firewall?

How to Block or Open a Port in Windows 10/8/7 Firewall

  1. Open Windows Firewall and find the Advanced Settings.
  2. Open the List of Inbound Rules.
  3. Set up a New Rule.
  4. Open the New Inbound Rule Wizard.
  5. Block the Connection.
  6. Apply Your New Rule to Each Profile Type.
  7. Name Your Rule and Configure the Settings.

How do I set Firewall to allow a port?

Navigate to Control Panel, System and Security and Windows Firewall. Select Advanced settings and highlight Inbound Rules in the left pane. Right click Inbound Rules and select New Rule. Add the port you need to open and click Next.

What ports should never be open?

Here are some common vulnerable ports you need to know.

  • FTP (20, 21) FTP stands for File Transfer Protocol.
  • SSH (22) SSH stands for Secure Shell.
  • SMB (139, 137, 445) SMB stands for Server Message Block.
  • DNS (53) DNS stands for Domain Name System.
  • HTTP / HTTPS (443, 80, 8080, 8443)
  • Telnet (23)
  • SMTP (25)
  • TFTP (69)

Should I block port 23?

Please block Port 23 and make sure Telnet services are disable. Port 139 – Used by NetBIOS Session Services. Among other things this port is vulnerable to Null session attacks, where an attacker can connect to the Windows IPC share without valid user credentials, and then gain access to other parts of the server.

What protocol does box use?

Box supports FTP (port 21), FTPS implicit (port 990), and FTPES explicit (port 21), over passive FTP. Box does not support active FTP or SFTP. For the data channel, Box uses ports 10,000 – 29,999.

What is box IP?

A patent box is a special very low corporate tax regime used by several countries to incentivise research and development by taxing patent revenues differently from other commercial revenues. It is also known as intellectual property box regime, innovation box or IP box.

How do I block a port number?

  1. Click “Start | Control Panel | System and Security | Windows Firewall.”
  2. Select “Advanced Settings.” Click “Inbound Rules” to block an inbound port; click “Outbound Rules” to block an outbound port.
  3. Select “New Rule.” Choose “Port” from the options and then click “Next.”