account for unresolved external ip address

installer/bin/updateip.sh

@@ -1,8 +1,13 @@
 #!/bin/bash
 # Let's add the first local ip to the /etc/issue and external ip to ews.ip file
+# If the external IP cannot be detected, the internal IP will be inherited.
 source /etc/environment
 myLOCALIP=$(hostname -I | awk '{ print $1 }')
 myEXTIP=$(/usr/share/tpot/bin/myip.sh)
+if [ "$myEXTIP" = "" ];
+  then
+    myEXTIP=$myLOCALIP
+fi
 sed -i "s#IP:.*#IP: $myLOCALIP ($myEXTIP)#" /etc/issue
 sed -i "s#SSH:.*#SSH: ssh -l tsec -p 64295 $myLOCALIP#" /etc/issue
 sed -i "s#WEB:.*#WEB: https://$myLOCALIP:64297#" /etc/issue
@@ -12,7 +17,8 @@ ip = $myEXTIP
 EOF
 tee /etc/tpot/elk/environment << EOF
 MY_EXTIP=$myEXTIP
+MY_INTIP=$myLOCALIP
 MY_HOSTNAME=$HOSTNAME
 EOF
-echo $myLOCALIP > /data/elk/logstash/mylocal.ip
 chown tpot:tpot /data/ews/conf/ews.ip
+chmod 760 /data/ews/conf/ews.ip