What ports need to be open for file sharing?

Microsoft file sharing SMB: User Datagram Protocol (UDP) ports from 135 through 139 and Transmission Control Protocol (TCP) ports from 135 through 139. Direct-hosted SMB traffic without a network basic input/output system (NetBIOS): port 445 (TCP and UPD).

What ports need to be open for Veeam Backup?

Used Ports

How do I allow file sharing through my firewall?

To open the firewall ports to enable file and printer sharing

1. Open Control Panel, click System and Security, and then click Windows Firewall.
2. In the left pane, click Advanced settings, and in the console tree, click Inbound Rules.

What port is file share?

Common Internet File Service (CIFS) is the successor to the server message block (SMB) protocol. CIFS is the primary protocol used by Windows systems for file sharing. CIFS uses UDP ports 137 and 138, and TCP ports 139 and 445.

What are the RPC ports?

By default, RPC uses ports in the ephemeral port range (1024-5000) when it assigns ports to RPC applications that have to listen on a TCP endpoint. This behavior can make restricting access to these ports challenging for network administrators.

What are ports 110 and 443 used for?

TCP port 110 is used for POP3 but POP3 is only used for incoming email, not outgoing email. TCP port 443 is used for HTTPS, not email.

What is port 139 commonly used for?

Port 139 is used by SMB dialects that communicate over NetBIOS. It’s a transport layer protocol designed to use in Windows operating systems over a network.

What is port 8080 typically used for?

The most commonly used example is assigning port 8080 for a web server. To get traffic to this web server, you would need to append the port number to the end of the domain name like http://websitename.com:8080. Note that using port 8080 is not reserved for secondary web servers.

What happens if I block port 445?

Blocking TCP 445 will prevent file and printer sharing and also other services such as DHCP (dynamic host configuration protocol) which is frequently used for automatically obtaining an IP address from the DHCP servers used by many corporations and ISPs(Internet Service Providers) will stop functioning.

Which is the firewall port for NetBackup 6.x?

port 13782 (bpcd, master and media servers, clients) port 13783 (nbatd, master server, previously vopied) port 13786 (OpsCenter report generation, master server)

Why do I need a firewall for Veeam Backup?

On backup infrastructure components, Veeam Backup & Replication automatically creates firewall rules for the required ports. These rules allow communication between the components. Important! Some Linux distributions require firewall and/or security rules to be created manually. For details, see this Veeam KB article.

Which is the most dangerous port on a firewall?

SMB ports firewall always restricts this port in the first place as a safety measure if users have opened it. This port 139 is employed for File and Printed Sharing. However, it appears to be the most dangerous port that you will find on the internet. It is because the port leaves the user’s hard disk exposed to cybercriminals.

Can a firewall configure both UDP and TCP ports?

Some firewalls allow selective configuration of UDP or TCP ports with the same number, so it’s important to know the type of port you’re configuring. For example, NFS can use TCP 2049, UDP 2049, or both. If your firewall doesn’t allow you to specify the type of port, configuring one type of port probably configures the other.