Dell MX9116n EMC SmartFabric OS10 User Guide Release 10.5.1 - Page 1165

Supported Releases 10.4.3.0 or later logging audit enable Enables recording of configuration and security event in the audit log. Syntax Parameters Defaults Command Mode Usage Information Example logging audit enable None Not configured CONFIGURATION Audit log entries are saved locally and sent to configured Syslog servers. Only the sysadmin and secadmin roles can enable the audit log. The no version of the command disables audit log recording. OS10(conf)# logging audit enable Supported Releases 10.4.3.0 or later X.509v3 certificates OS10 supports X.509v3 certificates to secure communications between the switch and a host, such as a RADIUS server. Both the switch and the server exchange a public key in a signed X.509v3 certificate issued by a certificate authority (CA) to authenticate each other. The certificate authority uses its private key to sign the switch and host certificates. The information in the certificate allows both devices to prove ownership and the validity of a public key. Assuming the CA is trusted, the switch and authentication server validate each other's identity and set up a secure, encrypted communications channel. User authentication with a public key certificate is usually preferred over password-based authentication, although you can use both at the same time, to: ● Avoid the security risk of using low-strength passwords and provide greater resistance to brute-force attacks. ● Provide assurance of trusted, provable identities (when using certificates digitally signed by a trusted CA). ● Provide security and confidentiality in switch-server communications in addition to user authentication. For example, you can download and install a X.509v3 certificate to enable public-key authentication in RADIUS over TLS authentication - also called RadSec. OS10 supports a public key infrastructure (PKI), including: ● Generation of self-signed certificates and certificate signing requests (CSRs), and their corresponding private keys ● Installation and deletion of self-signed certificates and CA-signed certificates ● Secure deletion of corresponding private keys ● Installation and deletion of CA certificates in the system "trust store" ● Display of certificate information X.509v3 concepts Certificate Certificate authority (CA) A document that associates a network device with its public key. When exchanged between participating devices, certificates are used to validate device identity and the public key associated with the device. A PKI uses the following certificate types: ● CA certificate: The certificate of a CA that is used to sign host certificates. A CA certificate may be issued by other CAs or be self-signed. A self-signed CA certificate is called a root certificate. ● Host certificate: A certificate that is issued to a network device. A host certificate may be signed by a CA or self-signed. ● Self-signed certificate: A host-signed certificate, compared to a CA-signed certificate. An entity that verifies the contents of a certificate and signs it, indicating that the certificate is trusted and correct. An intermediate CA signs certificates transmitted between a root CA and a host. Security 1165