qpsmtpd-prefork - Preforkin server for qpsmtpd
qpsmtpd-prefork is the qpsmtpd frontend script which binds to the SMTP
TCP socket, and asynchronously forks new children in advance of new
Binds to a specific port, instead of the default 2525.
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).
Accept at most limit simultaneous connections. Inbound
connections beyondthis limit will be deferred or refused.
Accept at most limit simultaneous connections from any given IP
address; does not override --limit-connections, if set.
Limit the total number of child processes to limit; once all
children are handling requests, further connections are
Keep count child processes available, subject to the upper bound
given via --children. Specify 0 to disable preforking entirely.
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.
Adjust the priority of the parent process by delta, yielding
more CPU time to other processes. The default is 5.
Detach from the controlling terminal at startup, to run as a
standalone daemon. See also --pid-file.
Upon startup, and after daemonizing if applicable, write the
process ID to filename, for use by sysvinit control scripts or
Update child process names within the process table.
Print the qpsmtpd release version and exit.
Be somewhat more verbose about logging during startup (has no
effect once fully started).
--help Display commandline help and exit.
Copyright (c) 2006, SoftScan; based on qpsmtpd-forkserver by Ask Bjorn