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List:       opensuse
Subject:    Re: [opensuse] Slow CIFS mount
From:       PaulFransen <send.me () xs4all ! nl>
Date:       2010-01-28 12:47:14
Message-ID: 201001281347.14341.send.me () xs4all ! nl
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On Wednesday 06 January 2010 16:20:56 Ciro Iriarte wrote:
> Hi, i'm seeing 1 to 3 minutes delay mounting on OS 11.2 a CIFS share
> from a Windows XP machine. Once it's mounted, everything is fine.
> Anybody sees something like this?
>
> Regards,
>
> --
> Ciro Iriarte
> http://cyruspy.wordpress.com
> --

Hi Ciro,

I don't think that this is a bug.

I have a samba share residing on a OpenSUSE 11.2 machine. Mounting this share 
on a Windows XP machine poses no speed problem at all (at least when you 
accept the usual Windows speeds). However, mounting this share on another 
OpenSUSE 11.2 machine takes a couple of minutes. I am using the command:
   /sbin/mount.cifs //[ip address server]/[share name] /[mount point] \
   -o user=[user name],password=[password],rw
Once mounted after a delay, the share is accessible with very acceptable 
speeds.

When you look in
   man 8 mount.cifs
the explanation of the "port=" parameter reads:
   "If the CIFS server is not listening on this port or if it is not
   specified, the default ports will be tried i.e. port 445 is tried
   and if no response then port 139 is tried."
Indeed, when using the following mount command:
   /sbin/mount.cifs //[ip address server]/[share name] /[mount point] \
   -o user=[user name],password=[password],rw,port=139
the share is mounted instantaneously. This would suggest that the delay 
results from contacting the server first at port 445 and only after that at 
port 139.

Samba servers are listening to ports 445 and 139 by default. However, most 
authors recommend to keep firewall port 445 closed, e.g. 
http://en.opensuse.org/Firewall_on_simple_samba_LAN. Opening this port in the 
server firewall, or specifying port=139 in the mount.cifs command on the 
client, does the trick in my situation.

I have added a comment to https://bugzilla.novell.com/show_bug.cgi?id=569384 
as well.

Best regards,

Paul. 


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