Which F-root node am I using?
To ensure that your users have access to an appropriate local root server it can be useful to find out which instance of the F Root Nameserver you are currently using. If there is a site listed close to you but you do not appear to be using it, ask your ISP to contact us so we can make the local site available to their customers.
To find out which F Root site is answering your queries, try one or both of the following:
- traceroute F.ROOT-SERVERS.NET
The route your packets take to reach F should give you some information about which site you are using. The site code used to name the ISC routers at the end of the trace can be looked up here.
- dig +norec @F.ROOT-SERVERS.NET HOSTNAME.BIND CHAOS TXT
This command sends a query to the F root nameserver, asking it to reveal the name of the particular server which answers the query. The hostname will contain a site code , allowing the location of the server to be identified. The dig utility is distributed with ISC BIND 9.
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