certificate is in the \fI\%tls\-service\-pem\fP
file and it must also be specified if
\fI\%tls\-service\-key\fP is specified.
-Enabling or disabling this service requires a restart (a reload is not
-enough), because the key is read while root permissions are held and before
-chroot (if any).
+If the key is stored with root permissions or outside of chroot, then
+a change or enabling or disabling requires a restart (a reload is not
+enough).
+But if the key file (and tls\-service\-pem file) are accessible, then they
+are read in on reload, and fast_reload.
+The server checks the modification time of the file (and the filename)
+to see if the file has changed for reload.
The ports enabled implicitly or explicitly via
\fI\%tls\-port\fP and
\fI\%https\-port\fP do not provide normal DNS TCP
Hard limit on the number of times Unbound is allowed to restart a query
upon encountering a CNAME record.
Results in SERVFAIL when reached.
+This applies to chained CNAME records but not sporadic CNAME records that
+could be encountered in the lifetime of the query\(aqs resolution effort.
+When a CNAME chain concludes, the counter keeping track of this limit is
+reset.
Changing this value needs caution as it can allow long CNAME chains to be
accepted, where Unbound needs to verify (resolve) each link individually.
.sp
.UNINDENT
.INDENT 0.0
.TP
+.B iter\-scrub\-rrsig: \fI<number>\fP
+Limit on the number of RRSIGs allowed for an RRset, from the iterator
+scrubber.
+This protects against an overly large number of RRSIGs.
+Clips off the remainder of the RRSIG list at that point.
+.sp
+Default: 8
+.UNINDENT
+.INDENT 0.0
+.TP
.B max\-global\-quota: \fI<number>\fP
Limit on the number of upstream queries sent out for an incoming query and
its subqueries from recursion.
.UNINDENT
.INDENT 0.0
.TP
-.B control\-interface: \fI<IP address or interface name or path>\fP
+.B control\-interface: \fI<IP address or interface name[@port] or path>\fP
Give IPv4 or IPv6 addresses or local socket path to listen on for control
commands.
If an interface name is used instead of an IP address, the list of IP