netbox-community-netbox/netbox/ipam/validators.py

from django.core.validators import RegexValidator


DNSValidator = RegexValidator(
    regex='^[0-9A-Za-z._-]+$',
    message='Only alphanumeric characters, hyphens, periods, and underscores are allowed in DNS names',
    code='invalid'
)
Closes #166: Add dns_name to IPAddress 2019-04-22 18:10:28 -04:00			`from django.core.validators import RegexValidator`


			`DNSValidator = RegexValidator(`
#3722: Tweak ordering of permitted characters to avoid creating a regex range 2019-12-09 10:02:56 -05:00			`regex='^[0-9A-Za-z._-]+$',`
Fixes #3722: Allow the underscore character in IPAddress DNS names 2019-12-05 21:14:29 -05:00			`message='Only alphanumeric characters, hyphens, periods, and underscores are allowed in DNS names',`
Closes #166: Add dns_name to IPAddress 2019-04-22 18:10:28 -04:00			`code='invalid'`
			`)`