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atucom/gist:1a3b5850c8a63ab74f3d72d8861d80c8

Created March 19, 2018 20:03
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Chop off subdomains from an FQDN
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gistfile1.txt
#!/usr/bin/env python3
#pip3 install tldextract
#Hostnames listed one/line in supplied file
#@atucom
with open('ips.txt.ssl_and_dns.hostnames') as f:
hostnames = f.readlines()
for hostname in hostanmes:
domain = tldextract.extract(hostname)
print(domain.registered_domain)
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