When Firestarter is running (using default settings), I can't look up names of local Windows shared PCs (nmblookup fails with ERRNO=Operation not permitted). This also means I can't browse the shares with Nautilus.
When I click the "stop" button, nmblookup succeeds and I can browse the shares with Nautilus.
How do I configure Firestarter's policy to solve this?
(Firestarter is v1.0.3 under Ubuntu 11.10.)
Samba uses the following ports:
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
Port 445 (TCP) - NetBIOS was moved to 445 after 2000 and beyond, (CIFS).
You need to allow those ports in Firestarter.
The samba client uses ports 1327/udp and 138/udp.
Uninstall Firestarter, install GUFW. The default configuration of GUFW doesn't interfere with NetBIOS lookups.
Firestarter does not seem capable of allowing this, at least via its GUI.