0234 | named allow recursion query for only specific zone
Thursday, October 18th, 2018 Posted in IP Network, Linux, Misc | 1 Comment »first> define dummy ip address (e.g. 192.0.2.1) set it to loopback interface
ip addr add 192.0.2.1/32 dev lo
second> named configuration:
- define acl for blackhole query to the dummy ip address defined
acl acl_blackhole { 192.0.2.1; };
- declare view for blackhole dns request
view blackhole { match-destinations { acl_blackhole; }; recursion no; }
- declare default view for accepting the query. recursion should be yes for allowing the query
view default { recursion yes; forward only; forwarders { 192.0.2.1; }; # by default forward to blackhole zone "example.com." IN { type forward; forward only; # specify your real recursion dns server here forwarders { 1.0.0.1; 1.1.1.1; }; } }