On Monday 02 Jun 2003 4:05 pm, Chris Parman wrote: > Hello, > > I just installed Mandrake 9.0 and setup my ADSL > modem. I have two NIC's and setup internet sharing > with respect to several machines behind my Linux box > (Mandrake 9.0). The problem is when the "firewall" is > on (With no services to the Outside) and the Security > set to "Standard", I cannot use Exceed (On my Windows > box) to login to my Linux box (Mandrake 9.0). If I > turn off the Firewall, then Exceed works fine. My > question is: How can I have both "Firewall on" and the > ability to use Exceed on the Windows box ? Thank you > in advance for your help. > > Best Regards, > > Chris Parman > By default the shorewall firewall will block traffic from the Internet (net) to the firewall (fw), and also from the local network (masq) to the firewall.
You could easily open up the specific port needed by Exceed (23), or else you can open up all services to the local network. To open all services to the local net edit the file /etc/shorewall/policy It is well documented and you will easily understand it. Add the line masq fw ACCEPT There should also be a fw masq ACCEPT To selectively open individual ports edit /etc/shorewall/rules and add the lines, (or add the port name/number to an existing line) ACCEPT masq fw tcp ssh ACCEPT masq fw udp ssh If you want applications on the firewall to access services on the local net you will need corresponding lines for ACCEPT fw masq tcp and so on For detailed documentation on shorewall see www.shorewall.net After making any changes enter shorewall restart in a root terminal. After making edits to the shorewall files do not use the Mandrake GUI again. It will likely overwrite your changes. If you prefer using a GUI there is one in the webmin package for shorewall (to use webmin 'urpmi webmin' in a root terminal, then https:localhost:10000 in a browser) HTH derek -- ---------------------------------- www.jennings.homelinux.net
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