Code: Select all
/ip dns static
add type=NXDOMAIN name="023hysj.com"
add type=NXDOMAIN name="101com.com"
add type=NXDOMAIN name="101order.com"
.
.
.
Everything works as expected, but I observe that the DNS cache list (size is 4 MB) is refreshed every four seconds, with a spike in CPU usage. The TTL starts at 24 h and counts back to 23:59:56 before the cycle repeats.
My questions are:
1.) Is this normal?
2.) Can I improve this behaviour (less CPU usage) without affecting the functionality?