Iptables + LXD + NGINX how to make them work together?

LXD
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5

I have checked the default website on Host and was without IP (read binding all) on NGINX.

Then I add the IP.

I have removed too the virtual host config used previously to:

location / {
                allow                   all;
                proxy_pass              https://10.177.0.121;
        }

Same error, on command:

ss -lntu

I got:

Netid         State          Recv-Q         Send-Q                  Local Address:Port                 Peer Address:Port         Process
udp           UNCONN         0              0                          10.177.0.1:53                        0.0.0.0:*
udp           UNCONN         0              0                       127.0.0.53%lo:53                        0.0.0.0:*
udp           UNCONN         0              0                      0.0.0.0%lxdbr0:67                        0.0.0.0:*
tcp           LISTEN         0              511                      10.0.1.137:137                       0.0.0.0:*
tcp           LISTEN         0              511                      10.0.1.138:138                       0.0.0.0:*
tcp           LISTEN         0              511                      10.0.1.141:141                       0.0.0.0:*
tcp           LISTEN         0              511                      10.0.1.114:80                        0.0.0.0:*
tcp           LISTEN         0              511                      10.0.1.147:147                       0.0.0.0:*
tcp           LISTEN         0              32                         10.177.0.1:53                        0.0.0.0:*
tcp           LISTEN         0              4096                    127.0.0.53%lo:53                        0.0.0.0:*
tcp           LISTEN         0              128                      10.0.1.114:22                        0.0.0.0:*
tcp           LISTEN         0              511                      10.0.1.121:121                       0.0.0.0:*
tcp           LISTEN         0              511                      10.0.1.114:443                       0.0.0.0:*
tcp           LISTEN         0              511                      10.0.1.131:131                       0.0.0.0:*
tcp           LISTEN         0              511                      10.0.1.132:132                       0.0.0.0:*
tcp           LISTEN         0              511                      10.0.1.133:133                       0.0.0.0:*

How dangerous would be keep the setup without firewall?