A small note ca file should be ready and your system should be installed to remember when you need it.
Creating a Certificate Request
./easyrsa gen-req {name} nopass
Note: using Easy-RSA configuration from: ./vars
Using SSL: openssl OpenSSL 1.1.1c FIPS 28 May 2019
Generating a RSA private key
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writing new private key to '[easyrsapath]/pki/private/[name].key.[key]'
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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.
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Common Name (eg: your user, host, or server name) [name]:
Keypair and certificate request completed. Your files are:
req: [easyrsapath]/pki/reqs/[name].req
key: [easyrsapath]/pki/private/[name].key
signing
./easyrsa sign-req client {name}
Note: using Easy-RSA configuration from: ./vars
Using SSL: openssl OpenSSL 1.1.1c FIPS 28 May 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 client certificate for 365 days:
subject=
commonName = [name]
Type the word 'yes' to continue, or any other input to abort.
Confirm request details: yes
Using configuration from [easyrsapath]/pki/safessl-easyrsa.cnf
Enter pass phrase for [easyrsapath]/pki/private/ca.key:
Check that the request matches the signature
Signature ok
The Subject's Distinguished Name is as follows
commonName :ASN.1 12:'[name]'
Certificate is to be certified until Apr 11 12:31:49 2022 GMT (365 days)
Write out database with 1 new entries
Data Base Updated
Certificate created at: [easyrsapath]/pki/issued/[name].crt
verification
openssl verify -CAfile pki/ca.crt pki/issued/{name}.crt
pki/issued/[name].crt: OK
Copying certificates to Open VPN
cp pki/issued/{name}.crt {openvpnpath}/client/.
cp pki/private/{name}.key {openvpnpath}/client/.
If we are going to define a private IP address for the client, we create a file named {name} in the ccd folder and add our rules to it as follows.
ifconfig-push 10.10.10.200 255.255.255.0