Something

from django.db import models

class User(models.Model):
	name = models.CharField(maxlength=200)
	
	def __str__(self):
		return self.name

class Machine(models.Model):
	name = models.CharField(maxlength=200)
	user = models.ForeignKey(User)
	ipv4 = models.CharField(maxlength=60)
	ipv6 = models.CharField(maxlength=60)

class Service(models.Model):
	name = models.CharField(maxlength=40)
	port = models.IntegerField()
	machine = models.ForeignKey(Machine)


# Create your models here.