Why PAM authentication for Ranger doesn't exist ?

[#1]

Before the migration from IOP 4.2.5 to HDP 2.6.4, we used PAM authentication for Ranger Admin.

Now we can only have UNIX, LDAP or AD.

Why ? it's very useful to use PAM authentication.

[#2]

This is because of the Ambari version used, which will be addressed in the next version.

https://issues.apache.org/jira/browse/AMBARI-18425

[#3]

AMBARI-18425 will be available in Ambari 2.7.0 (to be released).

In the meanwhile, if using Ambari 2.6.x (with HDP 2.6.x), set the authentication method as UNIX and add a custom property ranger.pam.authentication.enabled in ranger-admin-site.xml and set it to true.

[#4]

Okay nice to know that.

but it's strange that when i used IOP 4.2.5 (so with Ambari 2.4.2) this functionnality was implemented

Thanks for your time

[#5]

yes, that is true. Above Ambari patch mentioned was back-ported to Ambari used with IOP 4.2.5.