.\" rpc.dracd [-i] [-e expire] [dbfile]
'\"macro stdmacro
.\" Copyright University of Manitoba 1998.
.nr X
.TH rpc.dracd 8 "22 Jul 1998"
.SH NAME
rpc.dracd \- Dynamic Relay Authorization Control server
.SH SYNOPSIS
\f3rpc.dracd\f1 [\|\f3\-i\f1\| ] [ \f3\-e \f2expire\f1 ] [ \f2dbfile\f1 ] 
.SH AVAILABILITY
.LP
ftp.cc.umanitoba.ca:/src
.SH DESCRIPTION
.IX  "rpc.dracd command"  ""  "\fLrpc.dracd\fP \(em Dynamic Relay Authorization Control server"
.IX  "servers"  "Dynamic Relay Authorization Control server" "" "Dynamic Relay Authorization Control server \(em \fLrpc.dracd\fP"
\f4rpc.dracd\f1
is the Dynamic Relay Authorization Control server.
It uses the Berkeley db package to maintain a relay authorization
map for sendmail, by default \f4/etc/drac/dracd.db\f1.
POP and IMAP mail servers make an RPC call to add an entry to the
authorization cache after they have authenticated each user.
The daemon, rpc.dracd, adds or updates entries in the cache, and
periodically expires old entries.
Only trusted mail servers are permitted to communicate with rpc.dracd,
as controlled by \f4/etc/drac/dracd.allow\f1.
If this file does not exist, all local IP addresses are permitted.
.SS Allow File Format
The Allow File file consists of entries of the form:
.LP
.RS
\f4netmask \f2netaddr\fP\f1
.br
.RE
.LP
where both
.I netmask
and
.I netaddr
must be dotted quads.
.PD
.RE
.SH OPTIONS
.TP 15
.BI \-i
Initialize the database on startup.
.TP
.BI \-e \0expire
Set the expire time limit.
.I expire
is the number of minutes the entries will remain in the database.
It defaults to 30 minutes.
.TP
.BI dbfile
Use a different database file name.
.br
.ne 4
.LP
.SH FILES
.PD 0
.TP 30
.B /etc/drac/dracd.db
default database file
.TP
.B /etc/drac/dracd.allow
default allow file.
.PD
.SH TCP_WRAPPERS SUPPORT
This
.B rpc.dracd
version is protected by the
.B tcp_wrapper
library. You have to give the clients access to
.B rpc.dracd
if they should be allowed to use it. To allow connects from clients of
the .bar.com domain you could use the following line in /etc/hosts.allow:

dracd: .bar.com

You have to use the daemon name 
.B dracd
for the daemon name (even if the binary has a different name).

For further information please have a look at the
.BR tcpd (8)
and
.BR hosts_access (5)
manual pages.

.SH SEE ALSO
.BR dracauth (3)
.SH NOTES
The following signals have the specified effect when sent to the
server process using the
.BR kill (1)
command.
.TP 20
.SM SIGTERM
closes the database and terminates the server.