Send an e-mail when the current IP changes

[josemabera]

Good morning, I have been searching the Openrb website for a Script through which I get the current IP changes, I am not sure which of the two Script is valid.

I don't know if this script only sends the e-mail if the IP of the LM changes or if the current IP changes:
require('json')

data = io.readproc('if-json')

data = json.decode(data)

ip = data.eth0.inetaddr





ip_old = storage.get('ip_old')

if ip_old == nil then

  storage.set('ip_old', ip)

end



if ip ~= ip_old then

  subject = 'LM IP changed'

  message = 'The new IP is: ' .. ip

  mail('user@example.com', subject, message)

  storage.set('ip_old', ip)
end
 
 - I don't know exactly what we get with this Script
 
 require('json')

 res = io.readproc('if-json')

 res = json.decode(res)

 ip = res.eth0.inetaddr
 alert('Current LM IP is: %s', ip)
 

 
Thank you

BR 

 Josema