.B [credentials=<passwd>]
.B [realm=<realm>]
.B [secprops=<properties>]
+.B [keepalive=<idle>:<probes>:<interval>]
.B [starttls=yes|critical]
.B [tls_cert=<file>]
.B [tls_key=<file>]
that is being replicated (\fBaccess\fP directive), and appropriate time
and size limits (\fBlimits\fP directive).
+The
+.B keepalive
+parameter sets the values of \fIidle\fP, \fIprobes\fP, and \fIinterval\fP
+used to check whether a socket is alive;
+.I idle
+is the number of seconds a connection needs to remain idle before TCP
+starts sending keepalive probes;
+.I probes
+is the maximum number of keepalive probes TCP should send before dropping
+the connection;
+.I interval
+is interval in seconds between individual keepalive probes.
+Only some systems support the customization of these values;
+the
+.B keepalive
+parameter is ignored otherwise, and system-wide settings are used.
The
.B starttls
.B [credentials=<passwd>]
.B [realm=<realm>]
.B [secprops=<properties>]
+.B [keepalive=<idle>:<probes>:<interval>]
.B [starttls=yes|critical]
.B [tls_cert=<file>]
.B [tls_key=<file>]
in the consumer's configuration (see \fBsizelimit\fP and \fBlimits\fP
for details).
+The
+.B keepalive
+parameter sets the values of \fIidle\fP, \fIprobes\fP, and \fIinterval\fP
+used to check whether a socket is alive;
+.I idle
+is the number of seconds a connection needs to remain idle before TCP
+starts sending keepalive probes;
+.I probes
+is the maximum number of keepalive probes TCP should send before dropping
+the connection;
+.I interval
+is interval in seconds between individual keepalive probes.
+Only some systems support the customization of these values;
+the
+.B keepalive
+parameter is ignored otherwise, and system-wide settings are used.
+
The
.B starttls
parameter specifies use of the StartTLS extended operation