diff --git a/FreeRadius.md b/FreeRadius.md
index 0367ddc..a145753 100644
--- a/FreeRadius.md
+++ b/FreeRadius.md
@@ -81,6 +81,10 @@ For all categories, remove the “file” directive and add the “sql” one. T
 authorize {
     .....
     sql
+    expiration
+    quotalimit
+    accessperiod
+    uptimelimit
     ....
 }
 
@@ -157,6 +161,15 @@ sqlcounter quotalimit {
 
     $INCLUDE ${modconfdir}/sql/counter/${dialect}/${.:instance}.conf
 }
+
+sqlcounter uptimelimit {
+    counter_name = 'Max-All-Session-Time'
+    check_name = 'Max-All-Session'
+    sql_module_instance = sql
+    key = 'User-Name'
+    reset = never
+    query = "SELECT SUM(AcctSessionTime) FROM radacct WHERE UserName='%{${key}}'"
+}
 ```
 
 `mods-config/sql/counter/mysql/accessperiod.conf`