$ make-cadir pki-falcot
$ cd pki-falcot

$ vim vars
$ grep EASYRSA vars
export KEY_CONFIG=`$EASY_RSA/whichopensslcnf $EASY_RSA`
export KEY_DIR="$EASY_RSA/keys"
echo NOTE: If you run ./clean-all, I will be doing a rm -rf on $KEY_DIR
export KEY_SIZE=2048
export KEY_EXPIRE=3650
export KEY_COUNTRY="FR"
export KEY_PROVINCE="Loire"
export KEY_CITY="Saint-Étienne"
export KEY_ORG="Falcot Corp"
export KEY_EMAIL="admin@falcot.com"
export KEY_OU="Certificate authority"
export KEY_NAME="Certificate authority for Falcot Corp"
# If you'd like to sign all keys with the same Common Name, uncomment the KEY_CN export below
# export KEY_CN="CommonName"
$ 

$ ./easyrsa build-ca nopass

Note: using Easy-RSA configuration from: ./vars

Using SSL: openssl OpenSSL 1.1.1b  26 Feb 2019
Generating RSA private key, 2048 bit long modulus (2 primes)
......................................................................................+++++
......................+++++
e is 65537 (0x010001)
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Common Name (eg: your user, host, or server name) [Easy-RSA CA]:

CA creation complete and you may now import and sign cert requests.
Your new CA certificate file for publishing is at:
/home/roland/pki-falcot/pki/ca.crt

$ ./easyrsa gen-req vpn.falcot.com nopass
Note: using Easy-RSA configuration from: ./vars

Using SSL: openssl OpenSSL 1.1.1b  26 Feb 2019
Generating a RSA private key
.................................................................................+++++
........+++++
writing new private key to '/home/roland/pki-falcot/pki/private/vpn.falcot.com.key.E5c3RGJBUd'
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Common Name (eg: your user, host, or server name) [vpn.falcot.com]:

Keypair and certificate request completed. Your files are:
req: /home/roland/pki-falcot/pki/reqs/vpn.falcot.com.req
key: /home/roland/pki-falcot/pki/private/vpn.falcot.com.key

$ ./easyrsa sign-req server vpn.falcot.com

Note: using Easy-RSA configuration from: ./vars

Using SSL: openssl OpenSSL 1.1.1b  26 Feb 2019


You are about to sign the following certificate.
Please check over the details shown below for accuracy. Note that this request
has not been cryptographically verified. Please be sure it came from a trusted
source or that you have verified the request checksum with the sender.

Request subject, to be signed as a server certificate for 1080 days:

subject=
    commonName                = vpn.falcot.com


Type the word 'yes' to continue, or any other input to abort.
  Confirm request details: yes
Using configuration from /home/roland/pki-falcot/pki/safessl-easyrsa.cnf
Check that the request matches the signature
Signature ok
The Subject's Distinguished Name is as follows
commonName            :ASN.1 12:'vpn.falcot.com'
Certificate is to be certified until Jun 14 10:44:44 2022 GMT (1080 days)

Write out database with 1 new entries
Data Base Updated

Certificate created at: /home/roland/pki-falcot/pki/issued/vpn.falcot.com.crt

$ ./easyrsa gen-dh

Note: using Easy-RSA configuration from: ./vars

Using SSL: openssl OpenSSL 1.1.1b  26 Feb 2019
Generating DH parameters, 2048 bit long safe prime, generator 2
This is going to take a long time
[…]
DH parameters of size 2048 created at /home/roland/pki-falcot/pki/dh.pem

$ ./build-key JoeSmith

Note: using Easy-RSA configuration from: ./vars

Using SSL: openssl OpenSSL 1.1.1b  26 Feb 2019
Generating a RSA private key
....+++++
..............................+++++
writing new private key to '/home/roland/pki-falcot/pki/private/JoeSmith.key.mY21iP8ysv'
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Common Name (eg: your user, host, or server name) [JoeSmith]:

Keypair and certificate request completed. Your files are:
req: /home/roland/pki-falcot/pki/reqs/JoeSmith.req
key: /home/roland/pki-falcot/pki/private/JoeSmith.key