Problem with old b.root-server and DNS

UCS - Univention Corporate Server
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#1

PROBLEM

You notice errors in the DNS accompanied by messages in your logfile like:

checkhints: b.root-servers.net/A (192.228.79.201) extra record in hints

and/or

checkhints: b.root-servers.net/A (199.9.14.201) missing from hints

and there are requests to an old b.root-server.

Investigation

Please check if your update is older than 4 years:

grep update /etc/bind/db.root

You might see something like:

last update: February 17, 2016

Solution

You can easily fix this bug by doing

wget -O/etc/bind/db.root https://www.internic.net/domain/named.root

#2

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