Generating the RSA Server Host Key

Chapter 3 Setting Up the Sensor

Configuring SSH

To add a key entry to the SSHv1 or SSHv2 authorized keys list for the current user, follow these steps:

Step 1 Log in to the CLI.

Step 2 Add a key to the authorized keys list for the current user.

Note You recieve an error message if you try to add a key less than the 2048-bit key size and if the measured key length and input key length do not match.

For SSHv1:

sensor# configure terminal

sensor(config)# ssh authorized-key mhs rsa1-pubkey 512 34 8777777777777

sensor(config)#

For SSHv2:

sensor# configure terminal

sensor(config)# ssh authorized-key phs rsa-pubkey AAAAAAAAAAslkfjslkfjsjfs

Step 3 Enter yes to add the key to the authorized key list.

Step 4 Verify that the key was added.

sensor(config)# exit

sensor# show ssh authorized-keys

mhs

phs sensor#

Step 5 View the key for a specific ID.

sensor# show ssh authorized-keys mhs

512 34 8777777777777 sensor#

Step 6 Remove an entry from the list of SSH authorized keys.

sensor# configure terminal

sensor(config)# no ssh authorized-key mhs rsa1-key

Step 7 Verify the entry was removed.

sensor(config)# exit

sensor# show ssh authorized-keys

Step 8 If you enter the former ID, you receive an error message.

sensor# show ssh authorized-keys mhs

Error: Requested id does not exist for the current user. sensor#

The server uses the SSHv1 or SSHv2 host key to prove its identity. Clients know they have contacted the correct server when they see a known key. The sensor generates an SSHv1 or SSHv2 host key the first time it starts up.

	Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

OL-29168-01		3-49
OL-29168-01		3-49

IPS4510K9 specifications

Cisco Systems has long been a leading player in network security, and its IPS (Intrusion Prevention System) series is a testament to its commitment to safeguarding digital environments. Among its notable offerings are the IPS4510K9 and IPS4520K9 models, both designed to provide advanced threat protection for mid-sized to large enterprise networks.

The Cisco IPS4510K9 and IPS4520K9 are distinguished by their cutting-edge features that help organizations defend against a myriad of cyber threats. These systems utilize a multi-layered approach to security, integrating intrusion prevention, advanced malware protection, and comprehensive visibility across the network.

One of the primary characteristics of the IPS4510K9 is its high performance. It boasts a throughput of up to 1 Gbps, making it suitable for environments that demand rapid data processing and real-time responses to threats. The IPS4520K9, on the other hand, enhances that capability with improved throughput of up to 2 Gbps, accommodating larger enterprises with heavier network traffic. These models are equipped with powerful processors that support complex signature matching and can intelligently distinguish between legitimate traffic and potential threats.

In addition to performance, both models are designed with scalability in mind. They can be easily integrated into existing Cisco infrastructures. This facilitates a seamless enhancement of security without causing significant interruptions to ongoing operations. Moreover, they offer flexible deployment options, allowing organizations to operate them inline or out of band depending on their specific needs.

The Cisco IPS4510K9 and IPS4520K9 leverage advanced detection technologies, utilizing a variety of signature types and heuristic analysis to detect known and unknown threats effectively. They are equipped with real-time alerting and reporting capabilities, giving security teams immediate visibility into potential breaches and enabling them to respond swiftly.

Furthermore, both models support a range of management options through the Cisco Security Manager, allowing for centralized administration, streamlined policy management, and enhanced monitoring capabilities. Automated updates ensure the systems remain current with the latest threat intelligence, vital for staying ahead of evolving cyber threats.

In summary, the Cisco Systems IPS4510K9 and IPS4520K9 represent powerful solutions for organizations seeking robust intrusion prevention capabilities. With their high performance, scalability, and advanced detection technologies, these systems are essential tools in the ever-changing landscape of cybersecurity, providing enterprises with the peace of mind needed to operate securely in today's digital world.

Cisco Systems IPS4510K9 manual Generating the RSA Server Host Key

Models: IPS4510K9

For SSHv2:

Step 8 If you enter the former ID, you receive an error message.

Generating the RSA Server Host Key

IPS4510K9 specifications