telnet:无法连接到远程主机:尝试连接正在运行的 docker 映像时连接被拒绝 [英] telnet: Unable to connect to remote host: Connection refused when trying to connect running docker image
问题描述
我在服务器上运行 ubuntu 18.04.我有一个在 docker 上运行的 JasperServer 图像.我正在尝试从我的系统访问它.但它抛出以下错误:
I am having ubuntu 18.04 running on a server. I am got a JasperServer image running on docker in it. I am trying to access it from my system. But it throws the following error:
jamshaid@jamshaid:~$ telnet my_server_address 9095
Trying my_server_ip...
telnet: Unable to connect to remote host: Connection refused
这是 sudo docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
69c31ba800ab bitnami/jasperreports "/app-entrypoint.sh …" 5 hours ago Up 5 hours 0.0.0.0:9095->8080/tcp, 0.0.0.0:443->8443/tcp ceyedev_jasperreports_1
2a7cb72da0c7 bitnami/mariadb:10.3 "/opt/bitnami/script…" 5 hours ago Up 5 hours 0.0.0.0:3306->3306/tcp ceyedev_mariadb_1
如果我在本地主机上 telnet，它会连接然后连接关闭，这意味着它运行良好.这是我从 localhost telnet 时的输出:
if I telnet on localhost, it connects and then connection closes which means it is running well. Here is the output when I telnet it from localhost:
ceyedev@ub18servertiny:~$ telnet localhost 9095
Trying ::1...
Connected to localhost.localdomain.
Escape character is '^]'.
Connection closed by foreign host.
这里是 docker-compose 文件
Here is the docker-compose file
version: '2'
services:
mariadb:
restart: always
image: 'bitnami/mariadb:10.3'
environment:
- MARIADB_USER=bn_jasperreports
- MARIADB_DATABASE=bitnami_jasperreports
- ALLOW_EMPTY_PASSWORD=yes
ports:
- 3306:3306
volumes:
- 'mariadb_data:/bitnami'
jasperreports:
restart: always
image: 'bitnami/jasperreports'
environment:
- MARIADB_HOST=mariadb
- MARIADB_PORT_NUMBER=3306
- JASPERREPORTS_DATABASE_USER=bn_jasperreports
- JASPERREPORTS_DATABASE_NAME=bitnami_jasperreports
- ALLOW_EMPTY_PASSWORD=yes
ports:
- '9095:8080'
- '443:8443'
volumes:
- 'jasperreports_data:/bitnami'
depends_on:
- mariadb
volumes:
mariadb_data:
driver: local
jasperreports_data:
driver: local
这是sudo docker logs container_id_for_jasper
的输出
我可以从本地机器 telnet 其他端口，但是这个端口有问题.有任何想法吗?谢谢
I can telnet other ports from my local machine but having an issue with this one. Any ideas? thanks
从答案中保留第 2 项的观点，我执行了以下命令，发现 9095 是由服务器分配的.有什么想法吗?
keeping in the view of bullet 2 from answers, I executed the below command and found that 9095 is allocated by the server. Any ideas, please?
ceyedev@ub18servertiny:~$ netstat -atn
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:5432 0.0.0.0:* LISTEN
tcp 0 244 10.0.114.15:22 182.185.223.147:54326 ESTABLISHED
tcp6 0 0 :::22 :::* LISTEN
tcp6 0 0 ::1:5432 :::* LISTEN
tcp6 0 0 :::443 :::* LISTEN
tcp6 0 0 :::9095 :::* LISTEN
tcp6 0 0 :::3306 :::* LISTEN
推荐答案
根据你的问题，你知道:
Based on your question, you know:
- Docker 容器正在运行
- Docker 容器正在侦听端口 9095
- 从 Linux 服务器到 docker 容器的 telnet 正在运行
- 从 Internet 某处的其他客户端到 docker 容器的 telnet 不工作
我猜您的 Ubuntu 服务器不接受来自 Internet 端口 9095 上的传入请求.这可能有很多原因:
I guess your Ubuntu server is not accepting incoming requests from Internet on port 9095. There can be many reasons for that:
- 您的服务器有防火墙设置，会阻止连接
- 您的服务器没有将端口 9095 发布到 Internet
- 您的客户端在使用端口 9095 时无法访问互联网
所以我会调查这些方面.
docker 部分似乎没问题，因为 telnet 到 localhost 正在工作.
So I would investigate these aspects.
The docker part seems to be ok, because telnet to localhost is working.
这篇关于telnet:无法连接到远程主机:尝试连接正在运行的 docker 映像时连接被拒绝的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
