Junesta

Tools

Nameserver Looking Glass

There's a nameserver looking glass available that facilitates doing DNS lookups from locations around the world.
Can be useful if you're troubleshooting a CDN giving you different answers to different sources.

RDAP Lookup Tool

There's a tool for doing basic RDAP lookups.
It'll bootstrap from the IANA data, and copes with CentralNIC domains (albeit with a hard coded set of registration domains.
Expanding it to cope with IP lookups is on the TODO list.

Networking

Large BGP Communities

Anycast announcements from AS29478 are originated with BGP large communities that aim to assist in troubleshooting.

• 29478
• 0 - indicates the origin country identified by dialling code...
• 1 - United States
• 31 - Netherlands
• 33 - France
• 44 - United Kingdom
• 49 - Germany
• 61 - Australia
• 65 - Singapore
• 81 - Japan
• 27 - South Africa
• 1 - the individual site number within the given country
• 2 - ASCII representation of the site name (three character airport code)
• 657783 - AMS
• 708265 - FRA
• 767978 - LON
• 788967 - NYC
• 806582 - PAR
• 837378 - SIN
• 837467 - SJC
• 838968 - SYD
• 848979 - TYO
• 747866 - JNB