diff --git a/DEBIAN_COMPLIANCE b/DEBIAN_COMPLIANCE
index d0b5c334..28684bfb 100644
--- a/DEBIAN_COMPLIANCE
+++ b/DEBIAN_COMPLIANCE
@@ -11,12 +11,6 @@ launching :
 in a debian server could help finding the right way to do it (eg: bind9 ) ;) 
 
 Questions:
-  - what do we do about /var/alternc/exec.usr/ ?
-
-- we don't need our own php session folder don't we ? (or maybe for alternc-panel writable only ?) 
-  W: alternc: non-standard-dir-perm var/alternc/sessions/ 1733 != 0755
-  => /var/alternc/tmp => not easy to decide, cf #1458
-  => we must check if alternc can work with memcached sessions (or force disks sessions)
 
 - some binaries / scripts don't have a man page
 
@@ -52,6 +46,8 @@ Should be fixed, need more test:
 - /var/alternc/db => not used anymore, drop
 - /var/alternc/mla => not used anymore, drop
 - there is /var/alternc/cgi-bin/ is forgotten and now we use the standard /usr/lib/cgi-bin/ 
+- /var/alternc/exec.usr/ => usr/lib/alternc/safe_mode_exec_dir
+- /var/alternc/sessions/ disapear for the standard PHP sessions dir.
 
 ********************************************************************************
 FIXED:
diff --git a/debian/alternc.dirs b/debian/alternc.dirs
index fc4275fa..51b012ef 100644
--- a/debian/alternc.dirs
+++ b/debian/alternc.dirs
@@ -11,14 +11,13 @@ etc/phpmyadmin
 etc/postfix
 etc/sudoers.d
 usr/bin
-usr/lib/alternc
 usr/share/alternc/panel
+usr/lib/alternc
 usr/lib/alternc/install.d
+usr/lib/alternc/safe_mode_exec_dir
 usr/sbin
 usr/share/alternc/install
 usr/share/locale/fr/LC_MESSAGES
-var/alternc/exec.usr
-var/alternc/tmp
 var/backups/alternc
 /var/lib/alternc/apache-vhost
 /var/lib/alternc/bind
diff --git a/debian/rules b/debian/rules
index b6019c99..20b14add 100755
--- a/debian/rules
+++ b/debian/rules
@@ -63,7 +63,7 @@ install: build
 	chown -R 1999:1999 debian/alternc/usr/share/alternc/panel
 	chmod -R 644 debian/alternc/usr/share/alternc/panel
 	chmod -R a+X debian/alternc/usr/share/alternc/panel
-	chown -R www-data:www-data debian/alternc/var/log/alternc debian/alternc/var/alternc/tmp
+	chown -R www-data:www-data debian/alternc/var/log/alternc 
 	chmod a+x debian/alternc/usr/share/alternc/install/alternc.install debian/alternc/usr/share/alternc/install/dopo.sh debian/alternc/usr/share/alternc/install/mysql.sh debian/alternc/usr/share/alternc/install/newone.php debian/alternc/usr/share/alternc/install/reset_root.php debian/alternc/usr/share/alternc/install/upgrade_check.sh debian/alternc/usr/share/alternc/install/upgrades/*.php debian/alternc/usr/share/alternc/install/upgrades/*.sh
 
 	mkdir -p debian/alternc/var/run/alternc/
diff --git a/etc/alternc/templates/alternc/apache2.conf b/etc/alternc/templates/alternc/apache2.conf
index ab2b3b63..11b8adeb 100644
--- a/etc/alternc/templates/alternc/apache2.conf
+++ b/etc/alternc/templates/alternc/apache2.conf
@@ -1,3 +1,8 @@
+# AUTO GENERATED FILE
+# Modify template in /etc/alternc/templates/
+# and launch alternc.install if you want 
+# to modify this file.
+#
 # This module is loaded in /etc/apache/modules, and enabled by apache-modconf 
 # LoadModule vhost_alias_module /usr/lib/apache/1.3/mod_vhost_alias.so
 
@@ -30,7 +35,7 @@ ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
   php_admin_flag safe_mode off
   AddDefaultCharset UTF-8
 # open_basedir allows access to specifics directories. We need to grant access to these directories for alternc, awstats, mailman...
-  php_admin_value open_basedir /usr/share/alternc-mailman/patches/:/etc/alternc/:/var/run/alternc/:/usr/share/alternc/panel/:%%ALTERNC_HTML%%/:/var/alternc/tmp:/tmp:/usr/share/php/:/var/cache/alternc-webalizer/:/etc/locale.gen:%%ALTERNC_LOGS%%/:/etc/awstats/
+  php_admin_value open_basedir /usr/share/alternc-mailman/patches/:/etc/alternc/:/var/run/alternc/:/usr/share/alternc/panel/:%%ALTERNC_HTML%%/:/tmp:/usr/share/php/:/var/cache/alternc-webalizer/:/etc/locale.gen:%%ALTERNC_LOGS%%/:/etc/awstats/
 
 </Directory>
 
@@ -42,13 +47,17 @@ ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
   Allow from all
   php_admin_flag safe_mode_gid off
   php_admin_flag safe_mode off
-  php_admin_value disable_functions chmod,chown,chgrp,link,symlink
-  php_admin_value safe_mode_exec_dir /var/alternc/exec.usr
-  php_admin_value disable_functions chgrp,link,symlink
-  
   php_admin_flag enable_dl off
-  php_admin_value upload_tmp_dir /var/alternc/tmp
+
+  php_admin_value disable_functions chmod,chown,chgrp,link,symlink
+  php_admin_value safe_mode_exec_dir /usr/lib/alternc/safe_mode_exec_dir
+  php_admin_value disable_functions chgrp,link,symlink
   php_admin_value sendmail_path /usr/lib/alternc/sendmail
+
+  # Default upload_tmp_dir is /tmp . Be carefull, this value MUST be surcharged
+  # by the vhost to be a directory INSIDE the home of the user. If you don't do
+  # that, ACLs could be "strange" or inexistent.
+  php_admin_value upload_tmp_dir /tmp 
 </Directory>
 
 <Directory /usr/share/phpmyadmin>
diff --git a/etc/alternc/templates/alternc/apache_logformat.conf b/etc/alternc/templates/alternc/apache_logformat.conf
index 718a6676..1fd79a87 100644
--- a/etc/alternc/templates/alternc/apache_logformat.conf
+++ b/etc/alternc/templates/alternc/apache_logformat.conf
@@ -1,3 +1,9 @@
+# AUTO GENERATED FILE
+# Modify template in /etc/alternc/templates/
+# and launch alternc.install if you want 
+# to modify this file.
+#
+
 LogFormat "%{LOGIN}e %h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %T %{Host}i" alternc
 CustomLog "|| /usr/sbin/vlogger -u alterncpanel -g alterncpanel -s access.log -t \"access-%Y%m%d.log\" %%ALTERNC_LOGS%%" alternc
 
diff --git a/etc/alternc/templates/apache2/envvars b/etc/alternc/templates/apache2/envvars
index d54b5586..e52236c1 100644
--- a/etc/alternc/templates/apache2/envvars
+++ b/etc/alternc/templates/apache2/envvars
@@ -1,3 +1,8 @@
+# AUTO GENERATED FILE
+# Modify template in /etc/alternc/templates/
+# and launch alternc.install if you want 
+# to modify this file.
+#
 # envvars - default environment variables for apache2ctl
 
 # this won't be correct after changing uid
diff --git a/etc/alternc/templates/dovecot/dovecot-dict-quota.conf b/etc/alternc/templates/dovecot/dovecot-dict-quota.conf
index ddc159e2..2832f501 100644
--- a/etc/alternc/templates/dovecot/dovecot-dict-quota.conf
+++ b/etc/alternc/templates/dovecot/dovecot-dict-quota.conf
@@ -1,3 +1,8 @@
+# AUTO GENERATED FILE
+# Modify template in /etc/alternc/templates/
+# and launch alternc.install if you want 
+# to modify this file.
+#
 
 connect=host=%%dbhost%% dbname=%%dbname%% user=%%db_mail_user%% password=%%db_mail_pwd%%
 #connect = host=localhost dbname=mails user=testuser password=pass
diff --git a/etc/alternc/templates/dovecot/dovecot-sql.conf b/etc/alternc/templates/dovecot/dovecot-sql.conf
index 9d2e379e..232980a8 100644
--- a/etc/alternc/templates/dovecot/dovecot-sql.conf
+++ b/etc/alternc/templates/dovecot/dovecot-sql.conf
@@ -1,3 +1,9 @@
+# AUTO GENERATED FILE
+# Modify template in /etc/alternc/templates/
+# and launch alternc.install if you want 
+# to modify this file.
+#
+
 # This file is opened as root, so it should be owned by root and mode 0600.
 #
 # http://wiki.dovecot.org/AuthDatabase/SQL
diff --git a/etc/alternc/templates/dovecot/dovecot.conf b/etc/alternc/templates/dovecot/dovecot.conf
index be756235..9782a0c8 100644
--- a/etc/alternc/templates/dovecot/dovecot.conf
+++ b/etc/alternc/templates/dovecot/dovecot.conf
@@ -1,3 +1,8 @@
+# AUTO GENERATED FILE
+# Modify template in /etc/alternc/templates/
+# and launch alternc.install if you want 
+# to modify this file.
+#
 ## Dovecot configuration file
 
 # If you're in a hurry, see http://wiki.dovecot.org/QuickConfiguration
diff --git a/etc/alternc/templates/incron.d/alternc b/etc/alternc/templates/incron.d/alternc
index 9ad1ca93..5bcc08ab 100644
--- a/etc/alternc/templates/incron.d/alternc
+++ b/etc/alternc/templates/incron.d/alternc
@@ -1,2 +1,4 @@
+# WARNING: Do not edit this file, edit the one in /etc/alternc/templates and launch alternc.install again.
+
 /var/run/alternc/ IN_CREATE,IN_ATTRIB,IN_NO_LOOP /usr/lib/alternc/inotify_update_domains.sh
 
diff --git a/etc/alternc/templates/postfix/master.cf b/etc/alternc/templates/postfix/master.cf
index 904494ed..c140795b 100644
--- a/etc/alternc/templates/postfix/master.cf
+++ b/etc/alternc/templates/postfix/master.cf
@@ -1,3 +1,8 @@
+# AUTO GENERATED FILE
+# Modify template in /etc/alternc/templates/
+# and launch alternc.install if you want 
+# to modify this file.
+#
 #
 # Postfix master process configuration file.  For details on the format
 # of the file, see the master(5) manual page (command: "man 5 master").