Owing to the large volume of data being generated and exchanged day-to-day, network security plays a more crucial role in emerging network technology. It has become a significantly important task for accessing and transforming information over networks. Network security mainly involves the following aspects such as privacy, Access control, Authentication, Integrity, and Non-repudiation. There are several traditional approaches to network security based on machine learning techniques that experience significant improvements in networks data security. Though, these methods provide different network security solutions based on statistical features only. This list of literature surveys in Network security provides a high-level overview of state-of-the-art network security.