diff --git a/.metadata b/.metadata
index 5024a26..313f677 100644
Binary files a/.metadata and b/.metadata differ
diff --git a/.templates/nginx/nginx.conf b/.templates/nginx/nginx.conf
index 9e93c54..2a94ef2 100644
--- a/.templates/nginx/nginx.conf
+++ b/.templates/nginx/nginx.conf
@@ -2,7 +2,7 @@
 # Uses https://github.com/acmesh-official/acme.sh to manage SSL certificates.
 
 # Flags the  non 2xx or non 3xx (probably error) responses.
-map $status $errorlog { ~^[23]  0; default 1; }
+map $status $errorlog_$PAR_PROXYPORT { ~^[23]  0; default 1; }
 
 # Virtualhost's configuration follows.
 server {
@@ -12,12 +12,12 @@ server {
     server_name_in_redirect on;
     server_name $PAR_SERVERNAME;
 
-    set $server_admin webmaster@$server_name;
+    set $server_admin $PAR_WEBMASTER;
 
     # access log and error log.
     # Any requests getting a non 2xx or non 3xx response will go to the error log as well.
     access_log $PAR_SERVICE/logs/web/access.log combined;
-    access_log $PAR_SERVICE/logs/web/error.log combined if=$errorlog;
+    access_log $PAR_SERVICE/logs/web/error.log combined if=$errorlog_$PAR_PROXYPORT;
 
     # Let's Encrypt (acme.sh) support.
     location /.well-known/ {
@@ -62,11 +62,13 @@ server {
 	       "<span style='font-size: x-large'>Sorry something went wrong. Try again a bit later.<br>
                 You may report this at <a href='mailto:$server_admin'>$server_admin</a>.</span>";
     }
-
-    # No static service.
+    # No static service, but we may provide the OPTIONS for a potential DAV client.
 #   location / {
-#	default_type text/html;
-#	return 404 "<span style='font-size: x-large'>Sorry try <a href='$scheme://$server_name/$PAR_LOCATION'>$scheme://$server_name/$PAR_LOCATION</a> instead.</span>";
+#       default_type text/html;
+##      dav_ext_methods OPTIONS;
+#       if ($request_method != OPTIONS) {
+#           return 404 "<span style='font-size: x-large'>Sorry try <a href='$scheme://$server_name/$PAR_LOCATION'>$scheme://$server_name/$PAR_LOCATION</a> instead.</span>";
+##          return 302 $scheme://$server_name/$PAR_LOCATION;
 #   }
 
     ##################################################################################
diff --git a/tools/backup.d/configs_backup.sh b/tools/backup.d/configs_backup.sh
index 96c3395..fa19fda 100755
--- a/tools/backup.d/configs_backup.sh
+++ b/tools/backup.d/configs_backup.sh
@@ -3,8 +3,10 @@
 # Backups the configuration files of this docker-composed service.
 # This is a general purpose worker script, doesn't requires customization.
 #
-# Author: Kovács Zoltán <kovacs.zoltan@smartfront.hu>
+# Author: Kovács Zoltán <kovacsz@marcusconsulting.hu>
 # License: GNU/GPL v3+ (https://www.gnu.org/licenses/gpl-3.0.en.html)
+# 2024-03-07 v0.2
+# fix: tar now dereferences the symlinks (if any).
 # 2021-09-03 v0.1 Initial release
 
 # Accepted environment variables and their defaults.
@@ -69,7 +71,7 @@ BACKUPDIR="${PAR_BACKUPDIR:-$BASE_DIR/$BACKUPDIR}"
 if [ -w "$BACKUPDIR" ]; then
     BACKUP_NAME="configs.$("$DATE" '+%Y%m%d_%H%M%S').$("$HOSTNAME")"
     ( cd "$BASE_DIR"
-      "$TAR" czf "$BACKUPDIR/$BACKUP_NAME.tgz" \
+      "$TAR" czhf "$BACKUPDIR/$BACKUP_NAME.tgz" \
              "$YMLFILE" configs docker \
 	     2>>"$BACKUPDIR/$BACKUP_NAME.log"
     )
diff --git a/tools/customize_nginx.sh b/tools/customize_nginx.sh
index b2c746d..7efd503 100644
--- a/tools/customize_nginx.sh
+++ b/tools/customize_nginx.sh
@@ -1,20 +1,27 @@
 #!/bin/bash
-#
-# Set the variables below then run this script to generate the config/nginx.conf
-# (the webserver configuration file for this service). Take a revision then
-# symlink it into the instances/.nginx folder and reload the webserver to activate.
+
+PAR_SERVICENAME=
+PAR_PROXYHOST="localhost"
+PAR_PROXYPORT="8201"
+PAR_SERVERNAME="myservice.example.com"
+PAR_LOCATION=
+PAR_WEBMASTER="webmaster@example.com"  # Valid support email address
+
+################################################################################
+# There is nothing to change below this line (I hope)
+################################################################################
 
 PAR_ACMEHOST="localhost"
 PAR_ACMEPORT="8100"
-PAR_SERVICE="$HOME/services/servicename"
-PAR_PROXYHOST="localhost"
-PAR_PROXYPORT="8201"
-PAR_SERVERNAME="www.example.com"
-PAR_LOCATION=""
+PAR_SERVICE="$HOME/services/$PAR_SERVICENAME"
 
-# Do not change anything below.
-PARAMETERS='$PAR_ACMEHOST:$PAR_ACMEPORT:$PAR_SERVICE:$PAR_PROXYHOST:$PAR_PROXYPORT:$PAR_SERVERNAME:$PAR_LOCATION'
+PARAMETERS='$PAR_ACMEHOST:$PAR_ACMEPORT:$PAR_SERVICE:$PAR_PROXYHOST:$PAR_PROXYPORT:$PAR_SERVERNAME:$PAR_LOCATION:$PAR_WEBMASTER'
 for parameter in $(echo "$PARAMETERS" | tr ":" "\n")
 do export ${parameter:1}; done
 cat "$PAR_SERVICE/.templates/nginx/nginx.conf" | envsubst "$PARAMETERS" \
   > "$PAR_SERVICE/configs/nginx.conf"
+
+touch      $PAR_SERVICE/logs/web/access.log $PAR_SERVICE/logs/web/error.log
+chmod 660  $PAR_SERVICE/logs/web/access.log $PAR_SERVICE/logs/web/error.log
+[[ ! -a "$PAR_SERVICE/../.nginx/$PAR_SERVICENAME.conf" ]] \
+&& ln -s "../$PAR_SERVICENAME/configs/nginx.conf" "$PAR_SERVICE/../.nginx/$PAR_SERVICENAME.conf"