Revert 52cbab1e as in some cases it can

be a handy way to expose Wendelin.

utils/wendelin-standalone-bind.sh

+#!/bin/bash
+# script to open to public interfaces to wendelin standalone service.
+# the way to use it is to wget it and then simply run it.
+# it requires socat command
+
+ZOPE_PIDS="$(slapos node | grep 'zope\|jupyter-lab' | awk '{print substr($0, 91, 5);}')"
+LOCAL_IPv4="$(/sbin/ifconfig ens3 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}')"
+
+port=20000
+
+for pid in $ZOPE_PIDS;
+ do
+  # remove any trailing character in case PID is less than 5 digits
+  pid="$(echo ${pid} | sed 's/,//')"
+  ip_port="$(netstat -lpn --inet --inet6 | grep " $pid"/ |awk '{print substr($0, 21, 17);}')";
+  echo $pid, $ip_port, $port
+
+  # socat
+  if [[ $ip_port == 2001* ]];
+  then
+    ipv6_ip=${ip_port:0:10}
+    ipv6_port=${ip_port:11:15}
+    socat TCP-LISTEN:$port,fork TCP:[$ipv6_ip]:$ipv6_port &
+    echo "Jupyter node at https://${LOCAL_IPv4}:${port}/"
+  else
+    socat TCP-LISTEN:$port,fork TCP:$ip_port &
+    echo "Zope node at http://${LOCAL_IPv4}:${port}/"
+  fi
+
+  # increase port base
+  port=$((port+1))
+ done
\ No newline at end of file