Docker tcp只能用"localhost"不能用“127.0.0.1”或ip连接

Docker tcp can only use "localhost" but not "127.0.0.1" or ip to connect

我已经在 ubuntu18.04 上安装了最新的 docker 版本并且我已经配置了这个文件:

$ cat /etc/systemd/system/docker.service.d/hosts.conf
ExecStart=
ExecStart=/usr/bin/dockerd -H fd:// -H tcp://0.0.0.0:2375

然后:

sudo systemctl daemon-reload
sudo systemctl restart docker.service

现在我可以看到 docker 从远程 tcp 开始:

ps -ef|grep docker
root     16142     1  0 14:08 ?        00:00:00 /usr/bin/dockerd -H fd:// -H tcp://0.0.0.0:2375

现在我可以:

docker -H tcp://localhost:2375 version

有效并打印:

Client: Docker Engine - Community
Version:           19.03.5
API version:       1.40
Go version:        go1.12.12
Git commit:        633a0ea838
Built:             Wed Nov 13 07:29:52 2019
OS/Arch:           linux/amd64
Experimental:      false

Server: Docker Engine - Community
Engine:

但是我无法使用“127.0.0.1”或ip访问:

docker -H tcp://l27.0.0.1:2375 version
Client: Docker Engine - Community
Version:           19.03.5
API version:       1.40
Go version:        go1.12.12
Git commit:        633a0ea838
Built:             Wed Nov 13 07:29:52 2019
OS/Arch:           linux/amd64
Experimental:      false
error during connect: Get http://l27.0.0.1:2375/v1.40/version: dial tcp: lookup l27.0.0.1: no such host

此外,使用 ip 失败:

$ ifconfig|grep inet
    inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
    inet6 fe80::42:8fff:feac:e6fd  prefixlen 64  scopeid 0x20<link>
    inet 10.190.151.77  netmask 255.255.252.0  broadcast 10.190.151.255
    inet6 fe80::215:5dff:febd:e523  prefixlen 64  scopeid 0x20<link>
    inet 127.0.0.1  netmask 255.0.0.0
    inet6 ::1  prefixlen 128  scopeid 0x10<host>

这也会失败:

docker -H tcp://10.190.151.77:2375 version

我已经通过 "sudo ufw disable" 禁用了防火墙。不确定我是否应该配置 docker 或 ubuntu 网络?只是想知道为什么会这样以及如何让它发挥作用?

我发现了你的问题!

你用 "lower case L" 而不是 127.0.0.1 ^^'

写了 l27.0.0.1