December 2007
Intermediate to advanced
184 pages
4h 45m
English
Content preview from The Book of PFBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
FTP Through NAT: ftp-proxy
In November 2005, the old ftp-proxy (/usr/libexec/ftp-proxy) was replaced in OpenBSD-current with the new ftp-proxy, which lives in /usr/sbin. This is the software that is included in OpenBSD 3.9 onward.
Note
OpenBSD 3.8 equivalents or earlier only: This section is destined to become purely historical as soon as the last PF port moves on to the newer version. If you are using a modern PF version, jump directly to "New-Style FTP: ftp-proxy" on FTP, PF, and Routable Addresses: ftpsesame, pftpx, and ftp-proxy for up-to date information.
The old-style ftp-proxy program, which is a part of the base system on systems with PF versions corresponding to OpenBSD 3.8 or earlier, is usually called via the inetd superserver via an ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.