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What ports need to be open for Samba to communicate with other windows/linux systems?

Q. What ports need to be open for Samba to communicate with other windows/linux systems? I need to configure Linux firewall so I need the exact port names.

A. You can get list of ports from file called /etc/services. For your ease of use here are ports you need to open for two-way samba communication with Windows and Linux desktop systems.

* netbios-ns - 137/tcp # NETBIOS Name Service
* netbios-dgm - 138/tcp # NETBIOS Datagram Service
* netbios-ssn - 139/tcp # NETBIOS session service
* microsoft-ds - 445/tcp # if you are using Active Directory

Other ports

* Port 389 (TCP) - for LDAP (Active Directory Mode)
* Port 445 (TCP) - NetBIOS was moved to 445 after 2000 and beyond, (CIFS)
* Port 901 (TCP) - for SWAT service (not related to client communication)

See this url for Iptables rules for SAMBA/CIFS clients.


Refernce: http://www.cyberciti.biz/faq/what-ports-need-to-be-open-for-samba-to-communicate-with-other-windowslinux-systems/