openvpn

通过docker搭建openvpn

拉取openvpn镜像

docker pull kylemanna/openvpn:latest
创建目录

mkdir -p /data/tools/openvpn

生成配置文件 （192.168.10.214这个ip是我当前服务器的公网IP）

docker run -v /data/openvpn:/etc/openvpn --rm kylemanna/openvpn:latest ovpn_genconfig -u udp://192.168.10.214

Processing PUSH Config: 'block-outside-dns'
Processing Route Config: '192.168.254.0/24'
Processing PUSH Config: 'dhcp-option DNS 8.8.8.8'
Processing PUSH Config: 'dhcp-option DNS 8.8.4.4'
Successfully generated config
Cleaning up before Exit ...

生成秘钥文件

docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:latest ovpn_initpki

输入私钥密码（输入时是看不见的）：
Enter PEM pass phrase:12345678
再输入一遍
Verifying - Enter PEM pass phrase:12345678
输入一个CA名称（我这里直接回车）
Common Name (eg: your user, host, or server name) [Easy-RSA CA]:
输入刚才设置的私钥密码（输入完成后会再让输入一次）
Enter pass phrase for /etc/openvpn/pki/private/ca.key:12345678

生成客户端证书（这里的whsir改成你想要的名字）

docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa build-client-full whsir nopass

输入刚才设置的密码 Enter pass phrase for /etc/openvpn/pki/private/ca.key:12345678

导出客户端配置

mkdir -p /data/openvpn/conf
docker run -v /data/openvpn:/etc/openvpn --rm kylemanna/openvpn:2.4 ovpn_getclient whsir > /data/openvpn/conf/whsir.ovpn

启动openvpn服务

docker run --name openvpn -v /data/openvpn:/etc/openvpn -d -p 5001:5001/udp --cap-add=NET_ADMIN kylemanna/openvpn:latest

保存防火墙配置

iptables-save > /etc/sysconfig/iptables

设置防火墙

关闭firewalld防火墙，关闭开机自启

systemctl stop firewalld.service
systemctl disable firewalld.service

安装iptables防火墙，设置开机自启

yum -y install iptables-services net-toolssystemctl enable iptables.service

编辑防火墙配置

vi /etc/sysconfig/iptables

在最后COMMIT前添加以下规则

-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited

重启防火墙

systemctl restart iptables

将登录证书下载本地

yum install lrzsz -y
sz /data/openvpn/conf/whsir.ovpn

脚本信息

openvpn创建用户脚本

#!/bin/bash d
read -p "please your username: " NAME
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa build-client-full $NAME nopass
docker run -v /data/openvpn:/etc/openvpn --rm kylemanna/openvpn:2.4 ovpn_getclient $NAME > /data/openvpn/conf/"$NAME".ovpn
docker restart openvpn

openvpn删除用户脚本

#!/bin/bash
read -p "Delete username: " DNAME
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa revoke $DNAME
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa gen-crl
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 rm -f /etc/openvpn/pki/reqs/"$DNAME".req
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 rm -f /etc/openvpn/pki/private/"$DNAME".key
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 rm -f /etc/openvpn/pki/issued/"$DNAME".crt
docker restart openvpn

完整实例

*nat
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [3:228]
:POSTROUTING ACCEPT [3:228]
:DOCKER - [0:0]
-A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
-A OUTPUT ! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER
-A POSTROUTING -s 172.17.0.0/16 ! -o docker0 -j MASQUERADE
-A POSTROUTING -s 172.17.0.2/32 -d 172.17.0.2/32 -p udp -m udp --dport 1194 -j MASQUERADE
-A DOCKER -i docker0 -j RETURN
-A DOCKER ! -i docker0 -p udp -m udp --dport 1194 -j DNAT --to-destination 172.17.0.2:1194
COMMIT
*filter
:INPUT ACCEPT [60:4900]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [50:4784]
:DOCKER - [0:0]
:DOCKER-ISOLATION - [0:0]
-A FORWARD -j DOCKER-ISOLATION
-A FORWARD -o docker0 -j DOCKER
-A FORWARD -o docker0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -i docker0 ! -o docker0 -j ACCEPT
-A FORWARD -i docker0 -o docker0 -j ACCEPT
-A DOCKER -d 172.17.0.2/32 ! -i docker0 -o docker0 -p udp -m udp --dport 1194 -j ACCEPT
-A DOCKER-ISOLATION -j RETURN
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT

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通过docker搭建openvpn

通过docker搭建openvpn

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