[CentOS] Samba on Centos 5/6 differences

[Hendrik Strydom]

On Mon, 2014-03-10 at 11:45 -0400, Steve Campbell wrote:
> Kinda OT.
> 
> I've been trying to get Samba running on a Centos 5 box for some time 
> now, but can't seem to get it to happen. I can not connect to the 
> machine from our external network but I can connect from a box on the 
> same network. So it seems like a firewall problem.

This is covering the basics, but did you perhaps limit the IP range
allowed to connect to the samba service in /etc/samba/smb.conf in either
the 
interfaces =
	or 
hosts allow = 
statements to exclude the external network?
As far as I know these statements have not changed between CentOS 5 and
6.  Sane defaults typically limit this so your shares are not
potentially exposed to the wider internet.

Alternatively, is your default route set up properly for the other
network on both machines?

If your samba is configured for access via tcp_wrappers 
/etc/hosts.allow and 
/etc/hosts.deny 
comes into play.  This is again not standard configuration.

If these suggestions don't solve it we may need extracts from your
configuration files.  Exclude comments and mask sensitive information
before you post these.

In the basic port open or not firewall configuration the server should
not care where the connection comes from so I would look at the samba
configuration first.