docker-ocserv

docker-ocserv is an OpenConnect VPN Server boxed in a Docker image which is modified from docker-ocserv.

What is OpenConnect Server?

OpenConnect server (ocserv) is an SSL VPN server. It implements the OpenConnect SSL VPN protocol, and has also (currently experimental) compatibility with clients using the AnyConnect SSL VPN protocol.

New function

I remove the route and all group, everyone connected the vpn will access China Mainland website directly and other connection will be protected by it.

I tried using certificate verification and group accounts using OU, but it does not work, so I will add the function back when I fix it.

It supports both certificate and password auth, there are 5 files which will be created if not exist.

1. /etc/ocserv/ocserv.conf it will import the default settings if the configuration does not exist !!!
2. /etc/ocserv/certs/ca-cert.pem ca certificate
3. /etc/ocserv/certs/ca-key.pem ca key
4. /etc/ocserv/certs/server-cert.pem server certificate
5. /etc/ocserv/certs/server-key.pem server key

Heavily suggests that you'd better volume the directory /etc/ocserv and link the files if you already have ( just like server and ca ). Someone who imported the user.p12 will not be asked for the password.

You can create the user certificate using

docker exec -ti ocserv create_ocserv_user.sh [name] [days] [password] [output name]

it will create the files in the directory /etc/ocserv/certs

How to use this image

Get the docker image by running the following commands:

docker pull henry42/docker-ocserv

Start an ocserv instance:

docker run --name ocserv --privileged -p 443:443 -p 443:443/udp -v /etc/ocserv:/etc/ocserv -d henry42/docker-ocserv

Environment Variables

All the variables to this image is optional, which means you don't have to type in any environment variables, and you can have a OpenConnect Server out of the box! However, if you like to config the ocserv the way you like it, here's what you wanna know.

ROUTE, refresh will refresh the cn route.

CA_CN, this is the common name used to generate the CA(Certificate Authority).

CA_ORG, this is the organization name used to generate the CA.

CA_DAYS, this is the expiration days used to generate the CA.

SRV_CN, this is the common name used to generate the server certification.

SRV_ORG, this is the organization name used to generate the server certification.

SRV_DAYS, this is the expiration days used to generate the server certification.

The default values of the above environment variables:

Variable	Default
CA_CN	Common CA
CA_ORG	Common Org
CA_DAYS	9999
SRV_CN	www.example.com
SRV_ORG	Server Org
SRV_DAYS	9999

Running examples

docker run --name ocserv --privileged -p 443:443 -p 443:443/udp -d henry42/docker-ocserv

Start an instance with server name my.test.com, My Test and 365 days

docker run --name ocserv --privileged -p 443:443 -p 443:443/udp -e SRV_CN=my.test.com -e SRV_ORG="My Test" -e SRV_DAYS=365 -d henry42/docker-ocserv

Start an instance with CA name My CA, My Corp and 3650 days

docker run --name ocserv --privileged -p 443:443 -p 443:443/udp -e CA_CN="My CA" -e CA_ORG="My Corp" -e CA_DAYS=3650 -d henry42/docker-ocserv

A totally customized instance with both CA and server certification

docker run --name ocserv --privileged -p 443:443 -p 443:443/udp -e CA_CN="My CA" -e CA_ORG="My Corp" -e CA_DAYS=3650 -e SRV_CN=my.test.com -e SRV_ORG="My Test" -e SRV_DAYS=365 -d henry42/docker-ocserv

Start an instance as above but without test user

docker run --name ocserv --privileged -p 443:443 -p 443:443/udp -e CA_CN="My CA" -e CA_ORG="My Corp" -e CA_DAYS=3650 -e SRV_CN=my.test.com -e SRV_ORG="My Test" -e SRV_DAYS=365 -v /some/path/to/ocpasswd:/etc/ocserv/ocpasswd -d henry42/docker-ocserv

User operations

All the users opertaions happened while the container is running. If you used a different container name other than ocserv, then you have to change the container name accordingly.

Add user

If say, you want to create a user named tommy, type the following command

docker exec -ti ocserv ocpasswd -c /etc/ocserv/ocpasswd  tommy
Enter password:
Re-enter password:

When prompt for password, type the password twice, then you will have the user with the password you want.

Delete user

Delete user is similar to add user, just add another argument -d to the command line

docker exec -ti ocserv ocpasswd -c /etc/ocserv/ocpasswd -d test

Change password

Change password is exactly the same command as add user, please refer to the command mentioned above.