![]() You may have more or less services allowed. We'll use port 80 in our examples, although the process is the same for any port. ![]() As you can see I have dhcpv6-client and ssh services allowed from outside. In a previous scan we’ve determine that port 80 is open. sudo ufw allow 80/tcp means allow TCP connections to port 80. You see, how the SERVER container's port 80 is mapped to the port 80 of the host system? This guide shows how to perform a Headless Installation of Alpine Linux 3. First make sure that the IP forwarding is enabled on Linux following the “Enable Linux IP forwarding” Section in Setting Up Gateway Using iptables and route on Linux. If your gateway is a physical server, you can direct traffic using firewall-cmd. SYS entirely, but that might break things using ports other than 80, so it may cause problems. yml version: '3' services: web: image: nginx:alpine ports: - 127. This way, the container is able to communicate with external systems, the real world, the internet. alpine: Pulling from library/nginx 128191993b8a: Pull complete 655cae3ea06e: Pull complete dbc72c3fd216: Pull complete. To open a port 80 on RHEL 7 Linux we need to add an iptables rule. ![]() Alpine linux open port 80 However, there is nothing actually listening in behind the port.
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