Forum Discussion

Ishaq's avatar
Icon for Nimbostratus rankNimbostratus
May 01, 2024

Wildcard SSL Certificate Deployment on F5 LTM

We utilize F5 load balancer to generate CSR and implement Entrust SSL certificates across all subdomains within our infra. We're exploring the possibility of deploying a wildcard SSL certificate for ...
  • Paulius's avatar
    May 06, 2024

    You should be able to generate a key and CSR using the following. Please keep in mind that you need to fill out the pieces of the configuration file so that it creates it appropriately for your purpose. The configuration file, for this example, should be named

    [ req ]
    default_bits       = 2048
    distinguished_name = req_distinguished_name
    req_extensions     = req_ext
    [ req_distinguished_name ]
    countryName         = Country Name (2 letter code)
    stateOrProvinceName = State or Province Name (full name)
    localityName        = Locality Name (eg, city)
    organizationName    = Organization Name (eg, company)
    commonName          = *
    [ req_ext ]
    subjectAltName = @alt_names
    DNS.1 = *
    DNS.2 = (additional_FQDN)
    DNS.3 = (additional_FQDN)
    DNS.4 = (additional_FQDN)
    openssl req -new -config -keyout -out

    When you run the above command from the F5 cli it should prompt you to setup a new passphrase, which you should configure, this will be used to encrypt the key and keep it secure. You can take the .csr file and give that to your CA who can then provide you an SSL certificate to match your key.