FTP Installation Modes: There are three FTP installation
modes you can choose from: active FTP, passive FTP, or via a HTTP
proxy.
- FTP Active: Install from an
FTP server
- This option will make all FTP transfers use �Active�
mode. This will not work through firewalls, but will often
work with older FTP servers that do not support passive
mode. If your connection hangs with passive mode (the
default), try active!
- FTP Passive: Install from an
FTP server through a firewall
- This option instructs sysinstall
to use �Passive� mode for all FTP operations. This allows
the user to pass through firewalls that do not allow
incoming connections on random TCP ports.
- FTP via a HTTP proxy: Install
from an FTP server through a http proxy
- This option instructs sysinstall
to use the HTTP protocol (like a web browser) to connect to
a proxy for all FTP operations. The proxy will translate the
requests and send them to the FTP server. This allows the
user to pass through firewalls that do not allow FTP at all,
but offer a HTTP proxy. In this case, you have to specify
the proxy in addition to the FTP server.
For a proxy FTP server, you should usually give the name of the
server you really want as a part of the username, after an �@� sign.
The proxy server then �fakes� the real server. For example, assuming
you want to install from ftp.FreeBSD.org,
using the proxy FTP server foo.example.com,
listening on port 1234.
In this case, you go to the options menu, set the FTP username to
[email protected], and the password to
your email address. As your installation media, you specify FTP (or
passive FTP, if the proxy supports it), and the URL
ftp://foo.example.com:1234/pub/FreeBSD.
Since /pub/FreeBSD from
ftp.FreeBSD.org is proxied under
foo.example.com, you are able to install
from that
machine (which will fetch the files from
ftp.FreeBSD.org as your installation requests them).
