The security of the network system is a relative concept without absolute security. Today, the security audit system is an important part of the network security system in the increasingly popular today.
Enterprise customers fully monitor, analyze, and evaluate, analyze and evaluate an important means of ensuring network security. Network security is dynamic, for the established system, if there is no real-time, centralized, visual audit, is not safe / timely assessment system, and timely discovery of safety hazards. Therefore, the security system requires a centralized audit system. In a security solution, a simple collection of cross-vendor products tends to have a vulnerability, thus threatening, and danger. When a certain security vulnerability occurs, if you must conduct artificial analysis for the technical and products of different vendors, the solution will be made to reduce the response speed of the attack, and the cost is potentially increased. If you don't have more technical interoperability in multiple different or the same vendor's products in the same network, you can't play effectively, you can't play effectively. If there is no real-time, concentrated, visual audit, it is not effective, and timely assessment system is safe, it is impossible to find safety hazards in time. The security audit system can meet these requirements, focus on various equipment and systems in the network, visual comprehensive audit, timely discovery of safety hazards, and improve safety system results.
First, the network security audit system needs to consider the problem
Log format compatibility issues Under normal circumstances, the log formats generated by different vendors or systems are incompatible, which has a huge difficulty for centralized analysis of network security events.
The log data management problem log data is very large, constantly growing, and after the limit is exceeded, it cannot be discarded simply. Need a complete set of backup, recovery, and processing mechanisms.
Log data centralized analysis issues an attacker may attack a server attack on multiple networks, if a single analysis of log information on each server, not only workload, but it is difficult to find attacks; how to put multiple servers The log is associated, thus discovering the behavior of the attack is an important issue facing the security audit system.
Analysis reports and statistical reports automatically generate a large number of log information every day, huge workload enables administrators to view and analyze the content of various logs, and provide an intuitive analysis report and statistical report. Automatic generation mechanism to ensure that administrators can promptly and effectively discover various abnormal conditions and security events in the network.
Second, the main function of the network security audit system
Collecting a variety of types of log data can collect logs, firewall system logs, intrusion detection system logs, network exchange and route devices logs, network exchange, and application system logs.
Log management unified management in multiple log formats. The various log formats you collect will be automatically converted to a unified log format for unified management and processing of various complex log information.
The log query supports logging information in the network in a variety of ways to display in the form of a report.
Intrusion detection uses a variety of built-in correlation rules, the log and alarm information generated by devices distributed in the network is correlated with the security events that are difficult to discover in a single system.
Automatically generate security analysis reports based on log data, analyze the security of networks or systems, and output security analysis reports. The output of the report can be automatically generated according to pre-defined conditions, and submit it to the administrator.
Network status real-time monitoring can monitor status, network devices, log content, network behavior, etc. of a specific device running agent.
The event response mechanism can use a related response method alarm when the audit system detects a security event.
Centralized management audit systems provide centralized management of log agents, security auditing centers, log databases by providing a unified centralized management platform.
