Our new IDS, which employs both signature-based and anomaly detection as its analysis strategies, will be able to detect both known and unknown attacks and further isolate them. An auto-reclosing technique used on long rural power lines and multi-resolution techniques were used in developing these IDS, which will help update existing IPSs. It should effectively block SYN-flood attacks; distributed denial of service attacks (DDoS) based on SYN-flood attacks, and helps eliminate four out of the five major limitations of existing IDSs and IPSs.