--- loncom/html/adm/help/tex/Domain_Configuration_WAF_Proxy.tex	2020/12/21 11:27:31	1.1
+++ loncom/html/adm/help/tex/Domain_Configuration_WAF_Proxy.tex	2021/12/06 03:43:27	1.3
@@ -16,7 +16,10 @@ accessing LON-CAPA pages from a domain's
 
 The ``Web Application Firewall/Reverse Proxy'' domain configuration is used to indicate
 if a WAF is in use, and if so, to provide the alias assigned to each LON-CAPA
-server which will use the WAF.
+server which will use the WAF.  For each one there is also an option to indicate whether 
+a node supporting Single Sign On, will use the alias when redirecting to the URL used
+to trigger SSO authentication: default is /adm/sso, but can be set in an Apache config
+file using: PerlSetVar lonOtherAuthenUrl $<$other URL$>$
 
 \item\textbf{Determining a user's remote IP address}