$ docker run -it --network=none ubuntu:14.04 /bin/bash

$ docker inspect <identyfikator_kontenera>| grep -iaddr

$ docker run -it --network=bridge ubuntu:14.04 /bin/bash

------

$ docker network inspect bridge
[
   {
      "Name": "bridge",
      "Id": "89d035e9545966ca300a5aed5e55fa014422a95c90519ca7d3bf55d1b1e3230e",
      "Created": "2019-10-28T11:53:06.650717389Z",
      "Scope": "local",
      "Driver": "bridge",
      "EnableIPv6": false,
      "IPAM": {
         "Driver": "default",
         "Options": null,
         "Config": [
            {
               "Subnet": "172.17.0.0/16"
            }
         ]
      },
      "Internal": false,
      "Attachable": false,
      "Ingress": false,
      "ConfigFrom": {
         "Network": ""
      },
      "ConfigOnly": false,
      "Containers": {},
      "Options": {
         "com.docker.network.bridge.default_bridge": "true",
         "com.docker.network.bridge.enable_icc": "true",
         "com.docker.network.bridge.enable_ip_masquerade": "true",
         "com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
         "com.docker.network.bridge.name": "docker0",
         "com.docker.network.driver.mtu": "1500"
      },
      "Labels": {}
   }
]

------

$ docker run -d --name nginx-1 -p 10000:80 nginx
$ docker run -d --name nginx-2 -p 10001:80 nginx


$ docker run -ti --net=host busybox /bin/sh
root@host:/# netstat -nap | head

FROM fedora:22
MAINTAINER maintainer
# Aktualizacja systemu
RUN yum -y update; yum clean all
# Instalacja httpd
RUN yum -y install httpd
EXPOSE 80 443
ENTRYPOINT /usr/sbin/httpd


FROM fedora:latest
MAINTAINER maintainer
RUN yum install -y httpd
EXPOSE 80
# Uruchomienie usługi
CMD ["-D", "FOREGROUND"]
ENTRYPOINT ["/usr/sbin/httpd"]

"NetworkSettings": {
   "Bridge": "",
   "SandboxID": "5aed72597ba63edb87532431ea432aea9ffd023899252f53acabdbc47f2af523",
   "HairpinMode": false,
   "LinkLocalIPv6Address": "",
   "LinkLocalIPv6PrefixLen": 0,
   "Ports": {
      "443/tcp": null,
      "80/tcp": null
   },

$ docker network create --help

------

{
   "Name": "dmz",
   "Id": "b8da7e2ab9a71f38a01e28bfbfc978e76af35fd92f300d80d4d9fae23cccd873",
   "Created": "2019-10-28T13:27:29.657842303Z",
   "Scope": "local",
   "Driver": "bridge",
   "EnableIPv6": false,
   "IPAM": {
      "Driver": "default",
      "Options": {},
      "Config": [
         {
            "Subnet": "10.10.1.0/24"
         }
      ]
   },
   "Internal": false,
   "Attachable": false,
   "Ingress": false,
   "ConfigFrom": {
      "Network": ""
   },
   "ConfigOnly": false,
   "Containers": {
      "b562f29b0adf2ffd6919338b22be1c5b236b3948bc780a6bd6a3bc3fe1c27906":
      {
         "Name": "ubuntu",
         "EndpointID": "201a4fe3b93f05182edc443c024c73684a52dd50f5d95a2357b7cdacca10493d",
         "MacAddress": "02:42:0a:0a:01:02",
         "IPv4Address": "10.10.1.2/24",
         "IPv6Address": ""
      }
   },
   "Options": {},
   "Labels": {}
}


------

$ docker run -d --net=my-network --name elasticSearch elasticsearch:2.2

$ docker run -it --net=my-network --name ubuntu ubuntu:14.04 bash

$ docker exec -it elasticSearch bash

$ docker run -d --name myredisredis

$ docker run --link myredis:redis debian env

