on Both the released and draft versions of the server guide ( https://help.ubuntu.com/8.04/serverguide/C/firewall.html and http://doc.ubuntu.com/ubuntu/serverguide/C/firewall.html ) I feel the section "ufw Masquerading" could do with some clarification.
The instruction is:
"Now we will add rules to the /etc/ufw/before.rules file. The default rules only configure the filter table, and to enable masquerading the nat table will need to be configured. Add the following to the top of the file just after the header comments:"
Which is correct, but when reading the instructions, they show a COMMIT line, which looks the same as the bottom of the file.
I think it would be worth adding a line similar to "After adding the *nat section, you will have two COMMIT lines in your /etc/ufw/before.rules" would be helpful in clarifying that the COMMIT message is required.
Thanks.
Thanks Karl for reporting this, I'll add something to the Intrepid docs. Probably something along the lines of needing a "COMMIT" statement at the end of each table. The current examples only show the filter and nat tables, but that could be expanded in the future.
Thanks again.