windows etc/hosts 反映されない。

chrome://net-internals/#dns
chrome://net-internals/#sockets

ipconfig /flushdns

ipconfig /displaydns

nmap vendor 更新

$ wget https://standards-oui.ieee.org/oui/oui.txt

# cat oui.txt|grep "(base 16)"|awk '{ print $1," ",$4,$5,$6,$7,$8,$9,$10}'>a

vi /usr/share/nmap/nmap-mac-prefixes

脆弱性

# firewall-cmd --remove-service=cockpit --zone=public --permanent

# firewall-cmd --remove-service=dhcpv6-client --zone=public --permanent

# firewall-cmd --reload