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...re installing Shorewall I had hand-configured iptables to give me basic masquerading so that Computer #2 could access the Internet. All of that worked fine. From Computer #2 I could get a dynamic IP address, I could mount and access the NFS share, and I could run various web clients. I installed Sharewall in order to firewall my network because I''ll be replacing the dial-up connection with a cable modem connection in the near future. Here is my Shorewall configuration (before adding the additional policy entry described above): zones: net Net Internet loc Local Local networks inter...