DNSBL-exempt localhost (127.*) and private network (10.*, 192.168.*) addresses

Someone should add IPv6 exempted addresses too

Maybe perform a check against ctrl/dnsbl_exempt.cfg too?

exec/load/ircd/core.js

@@ -2775,6 +2775,7 @@ function accept_new_socket() {
 	}
 
 	// Start of DNSBL check
+	if(!dnsbl_exempt(sock.remote_ip_address)) {
 		const dnsbl_result = check_dnsbl(sock.remote_ip_address, 'dnsbl.dronebl.org');
 		if (dnsbl_result) {
 			sock.send(format(
@@ -2785,6 +2786,7 @@ function accept_new_socket() {
 			sock.close();
 			return false;
 		}
+	}
 	// End of DNSBL check
 
 	if (IP_Banned(sock.remote_ip_address)) {
@@ -3079,6 +3081,15 @@ function StatsM() {
 	this.executions = 0;
 }
 
+function dnsbl_exempt(ip) {
+	if(ip.indexOf("192.168.") == 0)
+		return true;
+	if(ip.indexOf("10.") == 0)
+		return true;
+	if(ip.indexOf("127.") == 0)
+		return true;
+	return false;
+}
 
 function check_dnsbl(ip, rbl) {
 	m = ip.match(/^(?:::ffff:)?([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i);