自定义docker网络
docker network create first
docker run -it -d --name tomcat --network first tomcat:8.0
docker exec -it tomcat /bin/bash
无法进行域名解析
ping www.baidu.com
ping: unknown host www.baidu.com
下面是配置信息
[root@tencent ~]# cat /etc/redhat-release
CentOS Linux release 7.6.1810 (Core)
[root@tencent ~]# docker version
Client:
Version: 18.06.3-ce
API version: 1.38
Go version: go1.10.3
Git commit: d7080c1
Built: Wed Feb 20 02:26:51 2019
OS/Arch: linux/amd64
Experimental: false
Server:
Engine:
Version: 18.06.3-ce
API version: 1.38 (minimum version 1.12)
Go version: go1.10.3
Git commit: d7080c1
Built: Wed Feb 20 02:28:17 2019
OS/Arch: linux/amd64
Experimental: false
宿主机nat转发已开启
[root@tencent ~]# cat /proc/sys/net/ipv4/ip_forward
1