ESXI-80-000211 - The ESXi host Secure Shell (SSH) daemon must set a timeout interval on idle sessions.

Information

Automatically logging out idle users guards against compromises via hijacked administrative sessions.

Solution

From an ESXi shell, run the following command:

# esxcli system ssh server config set -k clientaliveinterval -v 200

or

From a PowerCLI command prompt while connected to the ESXi host, run the following commands:

$esxcli = Get-EsxCli -v2
$arguments = $esxcli.system.ssh.server.config.set.CreateArgs()
$arguments.keyword = 'clientaliveinterval'
$arguments.value = '200'
$esxcli.system.ssh.server.config.set.Invoke($arguments)

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_8-0_Y25M07_STIG.zip