'Access the port mapped by the docker container :curl: (56) Recv failure: Connection reset by peer

Use host and br to start two containers

docker run -d --name="nginx_host" --net="host" nginx

docker run -d --name nginx_br -p 8000:80 nginx

View the container list

[root@docker_base ~]# docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED       STATUS       PORTS                  NAMES
2754b6f0d93e   nginx     "/docker-entrypoint.…"   2 hours ago   Up 2 hours   0.0.0.0:8000->80/tcp   nginx_br
cb73872caa94   nginx     "/docker-entrypoint.…"   2 hours ago   Up 2 hours                          nginx_host

Show the problem

[root@docker_base ~]# curl localhost:8000
curl: (56) Recv failure: Connection reset by peer

[root@docker_base ~]# curl localhost:80
<!DOCTYPE html>
<html>
<head>

Why nginx_br can not be accessed?

========================

Some information

[root@docker_base ~]# systemctl status docker
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
   Active: active (running) since 二 2021-03-16 17:12:51 CST; 1h 49min ago
     Docs: https://docs.docker.com
 Main PID: 2278 (dockerd)
   CGroup: /system.slice/docker.service
           ├─2278 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
           └─2975 /usr/bin/docker-proxy -proto tcp -host-ip 0.0.0.0 -host-port 8000 -container-ip 172.17.0.2 -container-port 80

3月 16 17:12:50 docker_base dockerd[2278]: time="2021-03-16T17:12:50.364215347+08:00" level=warning msg="[graphdriver] WARNING: the devicemapper storage-dr...e release"
3月 16 17:12:51 docker_base dockerd[2278]: time="2021-03-16T17:12:50.999168695+08:00" level=warning msg="Unable to find pids cgroup in mounts"
3月 16 17:12:51 docker_base dockerd[2278]: time="2021-03-16T17:12:51.000925360+08:00" level=info msg="Loading containers: start."
3月 16 17:12:51 docker_base dockerd[2278]: time="2021-03-16T17:12:51.298066663+08:00" level=info msg="Loading containers: done."
3月 16 17:12:51 docker_base dockerd[2278]: time="2021-03-16T17:12:51.754027070+08:00" level=info msg="Docker daemon" commit=363e9a8 graphdriver(s)=devicema...on=20.10.4
3月 16 17:12:51 docker_base dockerd[2278]: time="2021-03-16T17:12:51.754707862+08:00" level=info msg="Daemon has completed initialization"
3月 16 17:12:51 docker_base systemd[1]: Started Docker Application Container Engine.
3月 16 17:12:51 docker_base dockerd[2278]: time="2021-03-16T17:12:51.869090242+08:00" level=info msg="API listen on /var/run/docker.sock"
3月 16 17:19:45 docker_base dockerd[2278]: time="2021-03-16T17:19:45.903746502+08:00" level=info msg="ignoring event" container=3edc61d736b71ba79f5ed3b09fe...askDelete"
3月 16 18:51:45 docker_base dockerd[2278]: time="2021-03-16T18:51:45.978054059+08:00" level=info msg="ignoring event" container=c5959e50dfa8524bfefe60f8a01...askDelete"
Hint: Some lines were ellipsized, use -l to show in full.

[root@docker_base ~]# brctl show
bridge name bridge id       STP enabled interfaces
docker0     8000.000000000000   no      vetha8d3493

[root@docker_base ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
   Active: inactive (dead)

Here are some environment and network details

docker containers

Solution 1:^[1]

I could not solve it by restarting docker. but,I set docker0 to promiscuous mode.This problem is solved

ifconfig docker0 promisc

Solution 2:^[2]

Try to run the server in your Docker Container with ip 0.0.0.0 instead of localhost

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	sirius
Solution 2	til

'Access the port mapped by the docker container :curl: (56) Recv failure: Connection reset by peer

Solution 1:[1]

Solution 2:[2]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]