I installed Linux Mint on a system, then later I changed the hostname to cw. But nslookup reports both names. I tried /etc/init.d/dhcp stop then start, I tried /etc/init.d/network restart but no luck. Is there a way to flush this record ? thank you.
nslookup 10.0.0.43
43.0.0.10.in-addr.arpa name = cw.lan.
43.0.0.10.in-addr.arpa name = mint.lan.
Thank you. Restarted unbound and it cleared the PTR record.
This happens often in my network, I bring in a laptop, do an install, change hostname, reboot laptop and then nslookup reports 2 PTR records. If I change the hostname again, 3 PTR records.