DNS server to ban domain(forwarding to unknown ip)
When i want to ban the domain name, i add to the DNS Server to point domain to 192.168.1.4 where it does not exist. There is no private IP on the network. Is it okay to put private ip (not exist)? Will it cause a problem on Cisco Router if it attempts hundred times per sec to search for ip? (like ssh attach, irc trojan, p0rn etc)If not, what ip address should I put?