pauloprea

Keybase proof

I hereby claim:

• I am pauloprea on github.
• I am paul_oprea (https://keybase.io/paul_oprea) on keybase.
• I have a public key ASDqfzlvX3Ri1jTSkV2MZixXY0KYgq4Jo9kB9_UKJIUEUgo

To claim this, I am signing this object:

pauloprea

import re
import boto3

def is_valid_host(host):
    if len(host) > 255:
        return False
    if host[-1] == ".":
        host = host[:-1]
    allowed = re.compile("(?!-)[A-Z\d-]{1,63}(?<!-)$", re.IGNORECASE)
    return all(allowed.match(x) for x in host.split("."))