Mac 防火牆設定 pf 功能 July 14, 2020 July 15, 2020啟動內建防火牆,不是應用防火牆…sudo pfctl -e加入有關 SSH 規則sudo vi /etc/pf.conf # Restrict SSH (port 22) access block return in proto tcp from any to any port 22 pass in inet proto tcp from 59.124.115.0/24 to any port 22 no state載入規則sudo pfctl -f /etc/pf.conf參考pf