We are using PAM version 4.0.2a in our production environment having two nodes.
Users are not able to access the linux servers, however, rdp session can be access through PAM.
Please help us in resolving the issue at earliest.
Release : 4.x
The client was using a command filter ^mv * /dev/null using Regex expressions. This filter was being used for a long time. Disabling this filter allowed the linux machine to connect. After a day or 2 adding the filter back seemed to allow the connection to work again
Client must have had some environmental change which impacted the regular expression and blocked the connection. No changes were made other than temporarily disabling the command filter. Now the issue seems to be resolved.