Contents

DNS

Brightbox Cloud provides a number of dynamic DNS records for convenience.

Record format Response example Description
srv-xxxxx.gb1.brightbox.com 10.240.119.222 Private IPv4 address of the Cloud Server
ipv6.srv-xxxxx.gb1.brightbox.com 2a02:1348:14c:250d:24:19ff:fef0:9436 IPv6 address of the Cloud Server
public.srv-xxxxx.gb1.brightbox.com 109.107.36.218 2a02:1348:ffff:ffff::6d6b:24da IPv4 and IPv6 address of the first Cloud IP mapped to the Cloud Server. Returns NXDOMAIN if no Cloud IPs are mapped
*.public.srv-xxxxx.gb1.brightbox.com 109.107.36.218 2a02:1348:ffff:ffff::6d6b:24da Wildcard alias for public.srv-xxxxx.gb1.brightbix.com
cip-xxxxx.gb1.brightbox.com 109.107.36.218 2a02:1348:ffff:ffff::6d6b:24da IPv4 and IPv6 address of the Cloud IP with the identifier cip-xxxxx
*.cip-xxxxx.gb1.brightbox.com 109.107.36.218 2a02:1348:ffff:ffff::6d6b:24da Wildcard alias for cip-xxxxx.gb1.brightbox.com
grp-xxxxx.gb1.brightbox.com
10.242.44.206
10.242.101.114
2a02:1348:17c:8b33:24:19ff:fef2:2cce
2a02:1348:17c:995c:24:19ff:fef2:6572
IPv6 and private IPv4 addresses of all servers in the server group with the identifier grp-xxxxx. [more details](/blog/2016/05/17/cloud-server-group-dns/).
ipv6.grp-xxxxx.gb1.brightbox.com

2a02:1348:17c:8b33:24:19ff:fef2:2cce
2a02:1348:17c:995c:24:19ff:fef2:6572
IPv6 addresses of all servers in the server group with the identifier grp-xxxxx. [more details](/blog/2016/05/17/cloud-server-group-dns/).
public.grp-xxxxx.gb1.brightbox.com
109.107.38.55
109.107.38.128
2a02:1348:17c:8b33:24:19ff:fef2:2cce
2a02:1348:17c:995c:24:19ff:fef2:6572
IPv6 and any mapped Cloud IPv4 addresses of all servers in the server group with the identifier grp-xxxxx. [more details](/blog/2016/05/17/cloud-server-group-dns/).

Reverse DNS

Private Reverse DNS

Reverse DNS for private addresses works from within the Brightbox Cloud network:

$ host 10.240.119.222
222.119.240.10.in-addr.arpa domain name pointer srv-su22m.gb1.brightbox.com.

Cloud IP Reverse DNS

Reverse DNS for Cloud IPs defaults to the form cip-109-107-38-125.gb1.brightbox.com. for both the IPv4 and IPv6 address.

You can customise Cloud IP reverse DNS using the API. Any custom reverse DNS setting will apply to both IPv4 and IPv6 addresses. The forward DNS mapping must be in place first otherwise the reverse DNS update will be rejected.

Forward mappings for custom reverse DNS are checked once a day and the account owner is sent an email notification if the forward mapping is found to be invalid. If the forward mapping is left invalid for 3 consecutive days, the custom reverse DNS mapping is reset to the default form.

The CLI Reverse DNS guide will take you through setting up reverse DNS step by step.

Last updated: 20 May 2018 at 10:51 UTC

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