Set a better filtering on listening ports

__layout.k

@@ -1037,7 +1037,7 @@ _welcome_msg_cron = """\
 _welcome_msg_script = """\
 #!/bin/bash
 
-ports=$(ss -ptuln | grep -vE 'systemd|next-router|next-render|127.0.0.|%lo' | awk '/^tcp/ && $4 !~ /^(127\.|::1|0\.0\.0\.0)/ {print $5}' | awk -F: '{print $NF}' | sort -u)
+ports=$(ss -ptuln '( sport > :1023 or sport = :80 or sport = :443 )' | grep -vE 'systemd|next-router|next-render|127.0.0.|%lo' | awk '/^tcp/ && $4 !~ /^(127\.|::1|0\.0\.0\.0)/ {print $5}' | awk -F: '{print $NF}' | sort -u)
 num_ports=$(echo $ports | wc -l)
 ips=$(ip a|grep 'inet '|awk '{print $2}')