OpenVPN Tutorial for HiveOS

HiveOS VPN Setup

First of all you need to have a PC or a Server that needs to have a fixed IP on the internal network (the network where you host the VPN Server). Please remember that all VPN traffic will go to the VPN Server machine coming from each VPN client (each of your RIG’s and yourself at your personal computer).

I’m assuming you already have installed your VPN Server software at your Windows or Linux.

Please note that OpenVPN 2.4 installers will not work on Windows XP

If you use, for example, Debian, to install OpenVPN just type:
apt-get install openvpn

with this you get the Devian OpenVPN package that you will use to setup your OpenVPN server and generate server and client keys.

Links to download OpenVPN and install it manually at the time this tutorial was written:




First we need to create the CA certificate.

To do this use the following commands:

If you are using Linux, BSD, or a unix-like OS, open a shell and cd to the easy-rsa subdirectory. If you installed OpenVPN from an RPM or DEB file, the easy-rsa directory can usually be found in /usr/share/doc/packages/openvpn or /usr/share/doc/openvpn (it's best to copy this directory to another location such as /etc/openvpn, before any edits, so that future OpenVPN package upgrades won't overwrite your modifications). If you installed from a .tar.gz file, the easy-rsa directory will be in the top level directory of the expanded source tree.

At Debian, if you did “apt-get install openvpn” execute the following commands:
1:	make-cadir my_ca
2:	cd my_ca
3:	pico vars

If you are using Windows, open up a Command Prompt window and cd to \Program Files\OpenVPN\easy-rsa. Run the following batch file to copy configuration files into place (this will overwrite any preexisting vars.bat and openssl.cnf files):

Now edit the vars file (called vars.bat on Windows / at Linux use the “pico vars” command) and set the KEY_COUNTRY, KEY_PROVINCE, KEY_CITY, KEY_ORG, and KEY_EMAIL parameters. Don't leave any of these parameters blank.
Set KEY_SIZE to “4096”

Exit and save “vars” file.

At Debian, if you did “apt-get install openvpn”, run this command:
cp openssl-1.0.0.cnf openssl.cnf

Next, initialize the PKI. On Linux/BSD/Unix:
source ./vars

On Windows:

Next, we will generate a certificate and private key for the server. On Linux/BSD/Unix:
./build-key-server server

On Windows:
build-key-server server

As in the previous step, most parameters can be defaulted. When the Common Name is queried, enter "server". Two other queries require positive responses, "Sign the certificate? [y/n]" and "1 out of 1 certificate requests certified, commit? [y/n]".

Generate certificates & keys for 3 clients

Generating client certificates is very similar to the previous step. On Linux/BSD/Unix:
./build-key client1
./build-key client2
./build-key client3

On Windows:
build-key client1
build-key client2
build-key client3

Remember that for each client, make sure to type the appropriate Common Name when prompted, i.e. "client1", "client2", or "client3". Always use a unique common name for each client.

Generate Diffie Hellman parameters

Diffie Hellman parameters must be generated for the OpenVPN server. On Linux/BSD/Unix:

On Windows:

Key Files

Now we will find our newly-generated keys and certificates in the keys subdirectory (my_ca/keys). Here is an explanation of the relevant files:


The final step in the key generation process is to copy all files to the machines which need them, taking care to copy secret files over a secure channel.

Execute the “su” command to get root access.

Execute the following command when you are at “my_ca/keys” dir:
cp ca.crt server.key server.crt dh4096.pem /etc/openvpn/server/

Your “server.conf” file will be placed at Linux here:


And it will look something like this:
port 1194
proto udp
dev tun
ca server/ca.crt
cert server/server.crt
key server/server.key
dh server/dh4096.pem
topology subnet
ifconfig-pool-persist ipp.txt
client-config-dir ccd
keepalive 10 120
status openvpn-status.log
log openvpn.log
verb 3

Create the “server.conf” file at “/etc/openvpn/” using this command:
cat > server.conf

Then copy all the configuration above, at the end of the file press “CTRL-C” and the “server.conf” will be created.

Create the following directory:
mkdir /etc/openvpn/ccd

Run OpenVPN server like this at: /etc/openvpn/
openvpn server.conf

Your OpenVPN server should be running with no errors.

OpenVPN server should be running after booting and running if you used Debian package install, if not or manually installed, you need to get “openvpn server.conf” at the initscript.

For the “client.conf” file you need to upload to HiveOS website:
dev tun
proto udp
remote 1194
resolv-retry infinite
remote-cert-tls server
verb 3

***Paste CA Cert Text Here***

***Paste Your Cert Text Here***

***Paste Your Cert Private Key Here***

Where ca it’s your “ca.crt” , cert it’s your “client.crt” and key it’s your “client.key” content. You need to copy and paste each of this files content into those 3 fields.

Here at “remote 1194” line, if you have a dynamic IP Address, it’s better if you get some DynDns Service, get a dynamic dns like “”, set it at your local router at DynDns settings so the router update your dynamic IP Address automatically.
Edit the remote directive to point to the hostname/IP address and port number of the OpenVPN server (if your OpenVPN server will be running on a single-NIC machine behind a firewall/NAT-gateway, use the public IP address of the gateway, and a port number which you have configured the gateway to forward to the OpenVPN server).

To check client's service status on the rig when you upload config and it's not working:
systemctl status [email protected]
journalctl -u [email protected] -e --no-pager -n 100

Finally, we can now setup and configure our OpenVPN client at our PC or Laptop.

Just install OpenVPN Client and use the same “client.conf” file, but rename it to “hiveosvpn.ovpn” if you are using Microsoft Windows.

Copy it to your OpenVPN install dir under the sub dir called \config\ and get it there.

Launch OpenVPN Client for your Windows and your done, connect to the OpenVPN Server and you are at the same network as your remote rig’s.

Happy Mining with HiveOS Power!


  • Probably a stupid question but just to be sure.

    OpenVPN is used for external connection (I mean connection from different network from the one that is the connected to), correct?
  • with Teleconsole available for remote login, what is the point of having OpenVPN ?
  • Some people prefer to control where their data goes through
  • Bagster wrote: »
    Some people prefer to control where their data goes through

    thanks I see the point
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