[Samba] Error was Transport endpoint is not connected

Gaiseric Vandal gaiseric.vandal at gmail.com
Mon Oct 11 08:47:54 MDT 2010

By default samba listens on two TCP ports-  445 and 139.  You can 
specify this in smb.conf

         smb ports = 445 139

445 is the newer smb  over tcp.    139 is the older smb over netbios 
over tcp/ip.       445 was for Windows 2000 and newer clients..  I am 
not sure why samba enables 445 by default since as far as I know it does 
not support smb-over-tcp (without the NBT/netbios over tcp stuff.)    If 
you  set "smb ports = 139" in your smb.conf you should see endpoint 
messages disappear.

I think what happens is Win 2000 (and newer)  clients will initially try 
to connect on port 445, find it isn't really compatible, and then "dump 
down" to NBT on port 139.

So your NAS may be occasionally connecting on port 139 without problems 
and occasionally connecting on port 445, and which point it fails.

OR-  the "endpoint" errors may be completely unrelated, but you just 
don't look for when when the NAS is working.

Is the NAS part of the domain?  Is it a windows or linux/samba based device?

My samba server is a PDC.  XP clients in the domain connect with no 
problems regardless of  if smb ports is 139 only or 139 + 445.   XP/Win7 
clients NOT in the domain can't connect to shares if 445 is disabled, 
which indicates they are connecting to 445 1st.

On 10/11/2010 08:57 AM, robert.gehr wrote:
> Hello All
> I used to back up a Mssql database (about 55GB) to a samba share without
> any problems. The samba server "Server-A" was running version 3.4.7
> We just got one of those "Netgear ReadyNas3200" things and I tried to
> backup up to a share there which sometimes works and sometimes not in
> wich case I get the following error:
> ----------------snip---------------
> [2010/10/08 21:32:26.937834,  0]
> lib/util_sock.c:474(read_fd_with_timeout)
> [2010/10/08 21:32:26.966404,  0]
> lib/util_sock.c:1432(get_peer_addr_internal)
>    getpeername failed. Error was Transport endpoint is not connected
>    read_fd_with_timeout: client read error = Connection reset by
> peer.
> ---------------snap-----------------
> The samba version on the ReadyNas is 3.5.4
> On the windows side nothing has changed apart form the destination to
> the new share. The ReadyNas performs pretty well and I do not get any
> network errors or otherwise. To rule out some network problem I exported
> a nfs share on the ReadyNas which I mounted on "Server-A", created a
> share on "Server-A" that points to the nfs-mount and ran a backup. No
> problems and no errors.
> Any ideas which buttons to push in order to get a reliable backup going
> again? From what I read this usually points to a problem on the client
> side but nothing has changed there. I could of course use the
> "Server-A:smb->nfs-mount:ReadyNas" solution but this is not what I want.
> Thanks
> Rob

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