User Authentication

e.The switch compares the decrypted bytes to the original bytes it sent. If the two sets match, this means that the client's private key corresponds to an authorized public key, and the client is authenticated.

1.To use SSH with only password authentication, the host public key must still be given to the client, either during initial connection or manually entered into the known host file. However, you do not need to configure the client’s keys.

2.The SSH server supports up to four client sessions. The maximum number of client sessions includes both current Telnet sessions and SSH sessions.

Generating the Host Key Pair

A host public/private key pair is used to provide secure communications between an SSH client and the switch. After generating this key pair, you must provide the host public key to SSH clients and import the client’s public key to the switch as described in the proceeding section (Command Usage).

Field Attributes

 

 

 

Field Attributes

 

 

 

• Public-Key of

The public key for the host.

Host-Key:

• RSA (Version 1): The first field indicates the size of the host key (e.g., 1024), the

 

second field is the encoded public exponent (e.g., 65537), and the last string is the

 

encoded modulus.

 

• DSA (Version2): The first field indicates that the encryption method used by SSH is

 

based on the Digital Signature Standard (DSS). The last string is the encoded

 

modulus.

 

 

• Host-Key Type:

The key type used to generate the host key pair (i.e., public and private keys).

 

(Range: RSA (Version 1), DSA (Version 2), Both: Default: RSA)

 

The SSH server uses RSA or DSA for key exchange when the client first establishes

 

a connection with the switch, and then negotiates with the client to select either DES

 

(56-bit) or 3DES (168-bit) for data encryption.

 

 

• Save Host-Key from

Saves the host key from RAM (i.e., volatile memory to flash memory. Otherwise, the

Memory to Flash:

host key pair is stored to RAM by default. Note that you must select this item prior to

 

generating the host-key pair.

 

 

• Generate:

This button is used to generate the host key pair. Note that you must first generate the

 

host key pair before you can enable the SSH server on the SSH Server Settings

 

page.

 

 

Configuring the Secure Shell - Web

Click Security, SSH, Host-Key Settings. Select the host-key type from the drop-down box, select the option to save the host key from memory to flash (if required) prior to generating the key, and then click Generate.

FIG. 57 Web - SSH Host-Key Settings

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AMX NXA-ENET24 manual Generating the Host Key Pair, Configuring the Secure Shell Web
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NXA-ENET24 specifications

The AMX NXA-ENET24 is a versatile and powerful networked control interface designed to meet the growing demands of modern AV systems. This network switch offers an exceptional combination of reliability, performance, and scalability, making it an ideal choice for professional environments such as conference rooms, educational facilities, and control rooms.

One of the key features of the NXA-ENET24 is its 24-port configuration, allowing for extensive connectivity options. Each port supports 10/100/1000 Mbps speeds, ensuring that high bandwidth applications are handled with ease. Additionally, the switch incorporates advanced auto-negotiation technology, which automatically configures the optimal speed and duplex mode for connected devices. This ensures seamless connectivity and minimizes the risk of network disruptions.

The NXA-ENET24 is designed with advanced management capabilities, including support for VLANs, which helps to segment network traffic for enhanced security and performance. Network administrators can easily create virtual local area networks to optimize traffic flow and reduce congestion. This feature is particularly beneficial in environments where multiple AV systems operate concurrently.

Another significant characteristic of the NXA-ENET24 is its support for Power over Ethernet, or PoE. This feature enables the switch to deliver electrical power alongside data through the network cables. As a result, devices such as IP cameras, VoIP phones, and wireless access points can be powered directly from the switch, simplifying deployment and reducing the need for additional power sources.

Monitoring and management of the switch are made easier through a user-friendly interface. The NXA-ENET24 supports SNMP for network management, allowing users to monitor performance metrics, configure settings, and receive alerts in case of issues. This level of oversight is crucial for maintaining the stability of AV systems in mission-critical applications.

Durability is another hallmark of the NXA-ENET24 design. The switch features a robust chassis that is engineered to withstand the rigors of professional use. With cooling mechanisms in place and a fanless design, the NXA-ENET24 operates quietly and efficiently, making it suitable for environments where noise is a concern.

In conclusion, the AMX NXA-ENET24 is a powerful, reliable, and feature-rich network switch that effectively supports modern AV applications. With its extensive connectivity options, advanced management capabilities, PoE support, and durable design, it is an excellent choice for integrators and organizations looking to optimize their network infrastructure.
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