Reference Guide
...
SSH Keys Manager
User Group Key Management
in this tab, users can manage ssh key and ssh password authorizations based on user groups users can disable/enable ssh key authentication , and ssh password authentication , force ssh key +password auth to be used together, and set ssh key ttl ssh key time to live (ttl) day defines the maximum time allowed to use the ssh key if this value is set to " 1 " and “ 0 ”, the ssh key will never expire ttl value can be set between 1 and 10000 if the ssh key + pass auth method is set as force , users can only connect to the ssh proxy using both ssh key and password if the method is set as the default value don’t force , users can connect to the ssh proxy according to the value of the ssh key auth and password auth options if any of these two methods is set as enabled , users can connect to the ssh proxy with whichever method is enabled if both of these methods are set as enabled , users can connect to the ssh proxy with the enabled method of their choice