Hello
Who else experiences that problem since a couple of days?
$ whois direktion.ch The number of requests per client per time interval is restricted. You have exceeded this limit. Please wait a moment and try again.
(query was done via IPv6)
$ whois -h 130.59.31.241 direktion.ch whois: This information is subject to an Acceptable Use Policy. See http://www.nic.ch/terms/aup.html
Domain name: direktion.ch [...]
works!
I'm not doing more than max 10 queries/week from that specific ipv6 address, probably much less.
I'm not aware of having other clients within my /48 network doing any queries to whois.nic.ch (yes, my blacklist scripts do a lot of queries to whois.ripe.net and other RIR's to get abuse contacts, but not to switch)
-Benoît-