From 8fa924e37282081946b2abfca91688e382713a2d Mon Sep 17 00:00:00 2001
From: Alexander <devkral@web.de>
Date: Thu, 22 Feb 2018 23:41:21 +0100
Subject: [PATCH] Update pam documentation (#6518)

* document pam email extraction

* remove superfluous newline
---
 .env.production.sample | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/.env.production.sample b/.env.production.sample
index 06606ff25f0..d74cdb8f821 100644
--- a/.env.production.sample
+++ b/.env.production.sample
@@ -141,8 +141,12 @@ STREAMING_CLUSTER_NUM=1
 # GID=1000
 
 # PAM authentication (optional)
+# PAM authentication uses for the email generation the "email" pam variable
+# and optional as fallback PAM_DEFAULT_SUFFIX
+# The pam environment variable "email" is provided by:
+# https://github.com/devkral/pam_email_extractor
 # PAM_ENABLED=true
-# Suffix for email address generation (nil by default)
+# Fallback Suffix for email address generation (nil by default)
 # PAM_DEFAULT_SUFFIX=pam
 # Name of the pam service (pam "auth" section is evaluated)
 # PAM_DEFAULT_SERVICE=rpam