I install this image: Ubuntu Docker 17.12.0~ce on 16.04, in ssh i run
sudo ufw status verbose and get:
Status: active Logging: on (low) Default: deny (incoming), allow (outgoing), allow (routed) New profiles: skip To Action From -- ------ ---- 22 LIMIT IN Anywhere 2375/tcp ALLOW IN Anywhere 2376/tcp ALLOW IN Anywhere 22 (v6) LIMIT IN Anywhere (v6) 2375/tcp (v6) ALLOW IN Anywhere (v6) 2376/tcp (v6) ALLOW IN Anywhere (v6)
Ok to test that this firewall works i run some docker image on port 80 (nginx proxy):
sudo docker run -d -p 80:80 -e ENABLE_IPV6=true -v /var/run/docker.sock:/tmp/docker.sock:ro jwilder/nginx-proxy:alpine
Theoretically I should be not able to connect to por 80 but when I go to browser and type droplet IP i see nginx screen - this means that firewall ufw NOT WORKS at all (!!!).
When I install pure Ubuntu image (without docker) and manually instal ufw and docker I get similar error.
So what I should do to make UFW firewall works ?
I try this:
sudo ufw default deny incoming sudo ufw default allow outgoing sudo ufw enable
But doesn’t work :(
Above error is very easy to reproduce - may be the ubuntu images are broken?
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