ids.cgi: Generate and store the DNS server configuration.

This will be done by the recently added generate_dns_servers_file()
function from ids-functions.pl.

Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>

html/cgi-bin/ids.cgi

@@ -601,6 +601,9 @@ if ($cgiparams{'RULESET'} eq $Lang::tr{'save'}) {
 	# Generate file to store the home net.
 	&IDS::generate_home_net_file();
 
+	# Generate file to the store the DNS servers.
+	&IDS::generate_dns_servers_file();
+
 	# Write the modify sid's file and pass the taken ruleaction.
 	&IDS::write_modify_sids_file();