Verifying the Application Server's Reachability

To verify reachability to the Application Server

  1. Verify that the Application Server is accessible by finding its CN (which should also be the DNS hostname) by running the command:

    openssl x509 -in certificate.pem -noout -subject

    The response should be similar to:

    subject= /CN=SSL-W08-64SQ8-1

    where SSL-W08-64SQ8-1 is the CN of your Application Server

  2. Check reachability to the Application Server through a name-service using the command:

    getent hosts SSL-W08-64SQ8-1

    Or

    cat/etc/resolv.conf (get the primary and secondary DNS hostnames)

    nslookup SSL-W08-64SQ8-1 DNS1

    nslookup SSL-W08-64SQ8-1 DNS2

    If you do not receive a response, you need to add a record to the hosts file using the IP and CN of the Application Server:

    echo -e "10.2.8.19\tSSL-W08-64SQ8-1" >> /etc/hosts