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.\"
.IX Title "KA-FORWARDER 8"
.TH KA-FORWARDER 8 "2016-07-18" "OpenAFS" "AFS Command Reference"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
ka\-forwarder \- Forward AFS Authentication Server requests to another server
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fBka-forwarder\fR [\fB\-p\fR\ <\fIport\fR>] <\fIserver\fR>[/<\fIport\fR>] [...]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBka-forwarder\fR listens for requests for an \s-1AFS\s0 Authentication Server and
forwards them to a remote \fBfakeka\fR server.  \fBfakeka\fR is a server that
answers \s-1AFS\s0 Authentication Server protocol requests using a regular
Kerberos \s-1KDC\s0 and is provided with some Kerberos 5 implementations.
\&\fBfakeka\fR has to run on the same host as the Kerberos \s-1KDC,\s0 however, and
\&\s-1AFS\s0 clients send all native \s-1AFS\s0 authentication requests to the \s-1AFS\s0
database servers.  If you don't want to run your Kerberos KDCs and your
\&\s-1AFS\s0 database servers on the same host, run \fBka-forwarder\fR on the \s-1AFS\s0
database servers and point it to \fBfakeka\fR running on the Kerberos KDCs.
.PP
\&\fBka-forwarder\fR takes one or more servers to which to forward the
requests.  The default port on the remote server to which to forward the
command is 7004, but a different port can be specified by following the
server name with a slash (\f(CW\*(C`/\*(C'\fR) and the port number.  If multiple servers
are given, \fBka-forwarder\fR will send queries to each server in turn in a
round-robin fashion.
.SH "CAUTIONS"
.IX Header "CAUTIONS"
Due to the way that \fBka-forwarder\fR distinguishes from client requests and
server responses, any messages from one of the servers to which
\&\fBka-forwarder\fR is forwarding will be considered a reply rather than a
command and will not be forwarded.  This means that the servers running
\&\fBfakeka\fR will not be able to use native \s-1AFS\s0 authentication requests and
rely on \fBka-forwarder\fR to send the requests to the right server.
.PP
\&\fBka-forwarder\fR does not background itself.  It should either be run in
the background via the shell, or run via the Basic OverSeer Server (see
\&\fIbosserver\fR\|(8)).
.SH "OPTIONS"
.IX Header "OPTIONS"
.IP "\fB\-p\fR <\fIport\fR>" 4
.IX Item "-p <port>"
By default, \fBka-forwarder\fR listens to the standard \s-1AFS\s0 Authentication
Server port (7004).  To listen to a different port, specify it with the
\&\fB\-p\fR option.
.SH "EXAMPLES"
.IX Header "EXAMPLES"
Forward \s-1AFS\s0 Authentication Server requests to the \fBfakeka\fR servers on
kdc1.example.com and kdc2.example.com:
.PP
.Vb 1
\&    % ka\-forwarder kdc1.example.com kdc2.example.com &
.Ve
.PP
Note the \f(CW\*(C`&\*(C'\fR to tell the shell to run this command in the background.
.SH "PRIVILEGE REQUIRED"
.IX Header "PRIVILEGE REQUIRED"
\&\fBka-forwarder\fR only has to listen to port 7004 and therefore does not
require any special privileges unless a privileged port is specified with
the \fB\-p\fR option.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIbosserver\fR\|(8),
\&\fIfakeka\fR\|(8),
\&\fIkaserver\fR\|(8)
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2006 Russ Allbery <rra@stanford.edu>
.PP
This documentation is covered by the \s-1IBM\s0 Public License Version 1.0.  This
man page was written by Russ Allbery for OpenAFS.