Re: Semantics of "smb ports = 0"

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On Wed, Apr 25, 2012 at 10:04:30AM -0400, Nikolaus Rath wrote:
> Hello,
> 
> The qemu emulator has a feature to fork a samba instance for file
> sharing with the emulated hosts. It communicates with smbd over stdin.
> The generated configuration file contains a "smb ports = 0" directive to
> prevent smbd from listening to any ports.
> 
> Unfortunately, with at least Samba 3.6.4 this causes a segfault
> instead:
> 
> [0] vostro:/tmp/qemu-smb.6836-0# smbd -i -s smb.conf
> Unable to setup corepath for smbd: Operation not permitted
> smbd version 3.6.4 started.
> Copyright Andrew Tridgell and the Samba Team 1992-2011
> open_sockets_smbd: No sockets available to bind to.
> ===============================================================
> Abnormal server exit: open_sockets_smbd() failed
> ===============================================================
> BACKTRACE: 6 stack frames:
>  #0 smbd(log_stack_trace+0x1a) [0x7fe50c14f8ba]
>  #1 smbd(+0x6a0743) [0x7fe50c3bd743]
>  #2 smbd(+0x6a0a41) [0x7fe50c3bda41]
>  #3 smbd(main+0xa52) [0x7fe50be26d42]
>  #4 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7fe508ac0ead]
>  #5 smbd(+0x10a6b9) [0x7fe50be276b9]
> 
> 
> Also, there is some confusion as to whether this option was actually
> ever necessary.
> 
> Could someone clarify if something like this is still needed, or if
> Samba does the right think automatically? In the later case, has this
> always been the case or was it introduced in a specific version (and the
> "smb ports = 0" required before)?

If you remove the "smb ports = 0" value does the started Samba
bind to any interfaces ?

Jeremy.
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