Dell iDRAC Service Module 5.0.1.0 User’s Guide

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iSM support for TLS 1.3 protocol

Starting from iSM 4.2.0.0, iSM enables communication with iDRAC over the TLS 1.3 protocol. However, to successfully complete a handshake using TLS 1.3, the host operating system must support the TLS 1.3 version.

All iSM supported Linux operating systems (with OpenSSL version 1.1.1 or later) and Microsoft Windows Server 2022 support the TLS 1.3 protocol to communicate with iDRAC. If the host operating system does not support TLS 1.3 capability, iSM attempts communication with the TLS 1.2 protocol.

Table 1. TLS 1.3 protocol compatibility matrixThe following table is the TLS 1.3 protocol compatibility matrix
Products supporting TLS 1.3 protocol Release version
iDRAC 5.10.00.00 and later
iDRAC Service Module 4.2.0.0 and later

The iDRAC has a web server setting to enable only the TLS 1.3 protocol. All the requests from clients with earlier versions of TLS 1.3 are not accepted. The following are some of the iSM features that are not supported with this configuration:

  • Invoke-iDRAC GUI Launcher—This feature is functional when iDRAC is configured to support only the TLS 1.3 protocol and when the host operating system and the browser in the system support the TLS 1.3 protocol.
  • In-Band iDRAC Access (operating system to iDRAC)—This feature is functional when iDRAC is configured to support only the TLS 1.3 protocol, and when the remote client (browser) also supports TLS 1.3 protocol.
  • Autoupdate—This feature is functional when iDRAC is configured to support only the TLS 1.3 protocol and when the host operating system and the browser in the system support the TLS 1.3 protocol.

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