ip

213.22.252.91 - 20230523

https://access.redhat.com/sites/default/files/attachments/rh_ip_command…

ip neighbor add 192.168.100.1 lladdr 00:c0:7b:7d:00:c8 dev eth3 nud permanent

http://linux-ip.net/html/tools-ip-neighbor.html#ex-tools-ip-neighbor-add

dig @8.8.8.8 _spf.google.com txt

dig @8.8.8.8 _netblocks.google.com txt