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New IP addresses for Bitbucket Cloud | Bitbucket Blog

Posted by jpluimers on 2018/07/25

If you are using bitbucket from behind a firewall, these might be important to you:

What are we doing? We’ll start a gradual rollout of changing our A records in DNS starting at 22:00 UTC on Sunday, July 29 2018 to point to new IP addresses. The rollout is expected to be completed for all our customers two weeks later, i.e by the 15th of August.

How will this affect you?

Most users will not have to do anything special for this migration. Your DNS servers should pick up the new IPs within a few minutes of the migration, and your systems should start using the new IPs right away. We’ll keep the old IPs running for a few weeks afterwards just in case, though.

Firewall considerations

If you control inbound or outbound access with a firewall, then you may need to update your configuration. Please whitelist these new IPs now; you should be able to remove the old IPs after the migration is complete. New destination IP addresses for bitbucket.org, bitbucket.com, api.bitbucket.org, bitbucket.io, bytebucket.org, altssh.bitbucket.org will be: IPv4: 18.205.93.0/25 and 13.52.5.0/25 IPv6: 2406:da00:ff00::0/96

SSH considerations

Our server’s SSH key is not changing, so most SSH clients will continue to work without interruption. However, a small number of users may see a warning similar to this when they push or pull over SSH: Warning: the RSA host key for ‘bitbucket.org’ differs from the key for the IP address ‘18.205.93.1’ The warning message will also tell you which lines in your ~/.ssh/known_hosts need to change. Open that file in your favorite editor, remove or comment out those lines, then retry your push or pull.

Additional resources Atlassian Public IP ranges JSON: https://ip-ranges.atlassian.com/ (will be updated with the new addresses as part of the new IPs rollout) https://confluence.atlassian.com/bitbucket/what-are-the-bitbucket-cloud-ip-addresses-i-should-use-to-configure-my-corporate-firewall-343343385.html (will be updated with the new addresses as part of the new IPs rollout)

From:

–jeroen

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