What port is used for authentication?
The port values of 1812 for authentication and 1813 for accounting are RADIUS standard ports defined by the Internet Engineering Task Force (IETF) in RFCs 2865 and 2866. However, by default, many access servers use ports 1645 for authentication requests and 1646 for accounting requests.
What ports are required for Kerberos authentication?
Ports 88 and 464 are the standard ports for Kerberos authentication. These ports are configurable. Port 464 is only required for password change operations. Ports 88 and 464 can use either the TCP or UDP protocol depending on the packet size and your Kerberos configuration, see Section 2.2.
What port is used for Windows authentication?
Integrated Windows Authentication uses kerberos authentication using port 88 (GSSAPI’s).
What ports does SMB use?
SMB uses either IP port 139 or 445.
- Port 139: SMB originally ran on top of NetBIOS using port 139. NetBIOS is an older transport layer that allows Windows computers to talk to each other on the same network.
- Port 445: Later versions of SMB (after Windows 2000) began to use port 445 on top of a TCP stack.
What port is 1812?
Service Name and Transport Protocol Port Number Registry
| Service Name | Port Number | Description |
|---|---|---|
| radius | 1812 | RADIUS |
| radius-acct | 1813 | RADIUS Accounting |
| radius-acct | 1813 | RADIUS Accounting |
| tdp-suite | 1814 | TDP Suite |
Does Kerberos use TCP or UDP?
Kerberos is primarily a UDP protocol, although it falls back to TCP for large Kerberos tickets. This may require special configuration on firewalls to allow the UDP response from the Kerberos server (KDC). Kerberos clients need to send UDP and TCP packets on port 88 and receive replies from the Kerberos servers.
Is port 636 UDP or TCP?
Service Name and Transport Protocol Port Number Registry
| Service Name | Port Number | Transport Protocol |
|---|---|---|
| ldap | 389 | udp |
| ldaps | 636 | tcp |
| ldaps | 636 | udp |
| www-ldap-gw | 1760 | tcp |
How do I check if port 139 is open?
NetBIOS over TCP/IP For test the port 139, please try use the IP address of the server, NetBIOS or FQDN. You can use the telnet command or PortQuery tools.