Free ECCouncil ICS-SCADA Practice Exam with Questions & Answers | Set: 3

TCP flags are used in the header of TCP segments to control the flow of data and to indicate the status of a connection. Valid TCP flags include:

FIN: Finish, used to terminate the connection.

PSH: Push, instructs the receiver to pass the data to the application immediately.

URG: Urgent, indicates that the data contained in the segment should be processed urgently.

RST: Reset, abruptly terminates the connection upon error or other conditions.

SYN: Synchronize, used during the initial handshake to establish a connection.These flags are integral to managing the state and flow of TCP connections.References:

Douglas E. Comer, "Internetworking with TCP/IP Vol.1: Principles, Protocols, and Architecture".

A Network Intrusion Prevention System (NIPS) is capable of monitoring and validating encrypted data if it is integrated with technologies that allow it to decrypt the traffic.

Typically, network IPS can be set up with SSL/TLS decryption capabilities to inspect encrypted data as it traverses the network. This allows the IPS to analyze the content of encrypted packets and apply security policies accordingly.

Monitoring encrypted traffic is critical in detecting hidden malware, unauthorized data exfiltration, and other security threats concealed within SSL/TLS encrypted sessions.

References

"Network Security Technologies and Solutions," by Yusuf Bhaiji, Cisco Press.

"Decrypting SSL/TLS Traffic with IPS," by Palo Alto Networks.