No route to host开启服务器访问端口权限
sudo firewall-cmd --add-rich-rule="rule family="ipv4" source address="127.0.0.1" port protocol="tcp" port="8080" accept" --permanent sudo firewall-cmd --reload
sudo firewall-cmd --add-rich-rule="rule family="ipv4" source address="127.0.0.1" port protocol="tcp" port="8080" accept" --permanent sudo firewall-cmd --reload