Re-added a line specifying a default root for default server and moved MaxInstances line into here due to it being more appropriate context

roles/bootstrap/templates/proftpd/proftpd.conf.j2

@@ -11,7 +11,7 @@ Include /etc/proftpd/modules.conf
 UseIPv6 on
 # If set on you can experience a longer connection delay in many cases.
 <IfModule mod_ident.c>
-    IdentLookups off
+    IdentLookups on
 </IfModule>
 
 ServerName "{{ ftp_server_name }}"
@@ -19,16 +19,15 @@ ServerName "{{ ftp_server_name }}"
 # Read README.Debian for more information on proper configuration.
 ServerType standalone
 DeferWelcome off
+MaxInstances {{ max_conns }}
 
 # Disable MultilineRFC2228 per https://github.com/proftpd/proftpd/issues/1085
 # MultilineRFC2228on
 DefaultServer on
+DefaultRoot ~
 
 DenyFilter \*.*/
 
-# Use this to jail all users in their homes 
-DefaultRoot ~
-
 # Users require a valid shell listed in /etc/shells to login.
 # Use this directive to release that constrain.
 # RequireValidShell off