pi ${p1[@]}
+
+## prometheus node exporter setup
+web-conf -f 9100 -p 9101 apache2 $(hostname -f) <<'EOF'
+#https://httpd.apache.org/docs/2.4/mod/mod_authn_core.html#authtype
+# https://stackoverflow.com/questions/5011102/apache-reverse-proxy-with-basic-authentication
+<Location />
+ AllowOverride None
+ AuthType basic
+ AuthName "Authentication Required"
+ # setup one time, with root:www-data, 640
+ AuthUserFile "/etc/prometheus-htpasswd"
+ Require valid-user
+</Location>
+EOF
+
+
# website setup
case $HOSTNAME in
lj|li)