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Changes to api3.yubico.com

2015-02-13

We have upgraded api3.yubico.com and moved it from Tokyo, Japan to New York City.

While you should never hardcode any of our IPs in your application or firewall, please do note that the IPs have changed.

New IPv4: 104.236.200.122
New IPv6: 2604:a880:800:10::166:8001

Old IPv4: 106.187.90.175
Old IPv6: 2400:8900::f03c:91ff:feae:f595

If you must firewall your outgoing connections, you might be able to use DNS hostnames in your ruleset.

iptables and pf support this, but you must make sure to periodically reload your ruleset, otherwise changes to the DNS zones are not picked up.

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