Docker搭建openvpn server
I always intersted in build services in my own VPS. specially things like a server can help me free browser the internet. But sometimes the connection between my own pc and the vps server are not quite good. So things not always go luck.
I find out openvpn is quite useful these days. So I’m thinking I will build one of my own. I picked one of my VPS for the test. It was installed with Ubuntu 14.04 and has 512MB memory. Here are the steps of how I did it:
1st, I install the openvpn and easy-rsa:
$ apt-get install openvpn easy-rsa
2nd, change the value of net.ipv4.ip_forward=1 in /etc/sysctl.conf, then do sysctl -p
3rd, copy /usr/share/easy-rsa/ to /etc/openvpn/ and generate the openvpn keys in the directory of :
$ make-cadir /etc/openvpn/easy-rsa (ps: this seems another way to do this)
OR
cp -r /usr/share/easy-rsa/ /etc/openvpn
mkdir /etc/openvpn/easy-rsa/keys
openssl dhparam -out /etc/openvpn/dh2048.pem 2048
4th, change the directory to easy-rsa, then do the following command:
cd /etc/openvpn/easy-rsa/
source vars
./clean-all
./build-dh
./pkitool --initca
./pkitool --server server
cd keys
openvpn --genkey --secret ta.key
ln -s openssl-1.0.0.cnf openssl.cnf
./pkitool --initca
OR
./clean-all
./build-ca
./build-key-server server
5th, cp the generated keys to /etc/openvpn:
cp server.crt server.key ca.crt dh1024.pem ta.key /etc/openvpn/
6th, cp the server.conf sample to /etc/openvpn/server.conf
gunzip -c /usr/share/doc/openvpn/examples/sample-config-files/server.conf.gz > /etc/openvpn/server.conf
7th, change some value of the server.conf file:
;push "redirect-gateway def1 bypass-dhcp"
to
push "redirect-gateway def1 bypass-dhcp"
;push "dhcp-option DNS 208.67.222.222"
;push "dhcp-option DNS 208.67.220.220"
to
push "dhcp-option DNS 208.67.222.222"
push "dhcp-option DNS 208.67.220.220" (change to some dns server you trust)
;user nobody
;group nogroup
to
user nobody
group nogroup
8th, start and check the openvpn service:
service openvpn start
service openvpn status
9th, generate key of client:
./build-key client1
10th, copy the sample and change the value of client.ovpn:
cp /usr/share/doc/openvpn/examples/sample-config-files/client.conf /etc/openvpn/easy-rsa/keys/client.ovpn
remote my-server-1 1194
user nobody
group nogroup
# SSL/TLS parms.
# . . .
#ca ca.crt
#cert client.crt
#key client.key
<ca>
(insert ca.crt here)
</ca>
<cert>
(insert client1.crt here)
</cert>
<key>
(insert client1.key here)
</key>
参考：