You should be able to create the bundle with:

cat MyDomain_com COMODORSADomainValidationSecureServerCA.crt \

    COMODORSAAddTrustCA.crt AddTrustExternalCARoot.crt > COMODO.ca-bundle

That tutorial is for creating a self-signed key. You want to use the one that you received from PositiveSSL. The steps will be largely the same, but you can start with step four:

https://www.digitalocean.com/community/articles/how-to-create-a-ssl-certificate-on-apache-for-ubuntu-12-04#StepFour%E2%80%94SetUptheCertificate

When editing /etc/apache2/sites-available/default-ssl point to where you have stored the files you downloaded from Godaddy instead of the ones you would have created:

```
SSLEngine On
SSLCertificateFile /path/to/.crt
SSLCertificateKeyFile /path/to/.key
SSLCertificateChainFile /path/to/.ca-bundle
```

Really having a hard time with this.... :{


Here are the file I have gotten from Comodo

AddTrustExternalCARoot
COMODORSAAddTrustCA
COMODORSADomainValidationSecureServerCA
MyDomain_com

how do I make a .ca-bundle in details please and next step after that


Thank you.