Python: Bind to port 80 as root, then drop privileges?

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LEARN ABOUT DEBIAN

qpsmtpd-forkserver

qpsmtpd-forkserver(8)					      System Manager's Manual					     qpsmtpd-forkserver(8)

NAME

       qpsmtpd-forkserver - Fork-on-demand server for qpsmtpd

SYNOPSIS

       qpsmtpd-forkserver [options]

DESCRIPTION

       qpsmtpd-forkserver is the qpsmtpd frontend script which binds to the SMTP TCP socket and forks as clients connect.

OPTIONS

       --port port, -p port
	      Binds to a specific port, instead of the default 2525.

       --user user, -u user
	      On  startup,  switch to run as user instead of the starting user.  Applies only when started as root (as is normal when listening on
	      port 25).

       --limit-connections limit, -c limit
	      Accept at most limit simultaneous connections.  Inbound connections beyondthis limit will be deferred or refused.

       --max-from-ip limit, -m limit
	      Accept at most limit simultaneous connections from any given IP address; does not override --limit-connections, if set.

       --listen-address addr, -l addr
	      Bind to the local address addr, instead of the default behavior of binding to all interfaces.  Can be specified  multiple  times	to
	      bind to more than one interface or local address.

       --detach, -d
	      Detach from the controlling terminal at startup, to run as a standalone daemon.  See also --pid-file.

       --pid-file filename
	      Upon  startup, and after daemonizing if applicable, write the process ID to filename, for use by sysvinit control scripts or similar
	      utilities.

AUTHOR

       Ask Bjorn Hansen <ask@develooper.com>
       http://smtpd.develooper.com/

															     qpsmtpd-forkserver(8)

Shell Programming and Scripting