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I am trying to connect to Windows Server 2008 network share on Ubuntu, but for some reason it is not working.

I have the following entries in my fstab:

//server/foo    /mnt/foo    cifs    username=aron,password=foobar    0       0
//server/bar  /mnt/bar  cifs    username=aron,password=foobar    0       0

I get the following error after calling mount -a:

mount error(110): Connection timed out Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

The output of dmesg | tail is:

[ 6697.441061] CIFS VFS: Error connecting to socket. Aborting operation
[ 6697.441078] CIFS VFS: cifs_mount failed w/return code = -110

I have no clue about why this command is timing out. Any help is appreciated.

EDIT: the OP explained this was only happening when trying to mount over a VPN connection, but it seems to happen with a physical connection as well.

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What type of VPN are you using? What do you get when you try to do a traceroute to the server you are trying to mount? – Zoredache Dec 14 '10 at 21:50
Thanks for the reply; I just tried using a physical connection and am getting the same problem (my bad). It seems VPN is not the problem here. – Aron Rotteveel Dec 15 '10 at 8:58
up vote 1 down vote accepted

Solved the problem.

It turned out I had an entry in /etc/hosts that made my DC hostname resolve to a different IP address than the primary reverse resolver.

IE: server

While did not resolve back to this host.

I edited the hosts entry to reflect the correct IP-adress, which solved the issue.

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I whould also put the domain=name in the options -o

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