UPDATE: Since most modern browsers yanked their trust for StartSSL certificates due to some funny business from StartCom, I no longer recommend StartSSL certs. I’ve switched all my certs over to LetsEncrypt (using the excellent Dehydrated script for easy setup and renewal). The article below remains here for historical purposes only. […]

Create a Free SSL Certificate with StartSSL   Recently updated!

I went to update the mod_cloudflare package on a CentOS / RHEL box this morning, and ran unto the following problem: % sudo yum update -y mod_cloudflare Resolving Dependencies --> Running transaction check ---> Package mod_cloudflare.x86_64 0:1.2.0-1360806316.el6 will be updated ---> Package mod_cloudflare.x86_64 0:1.3.1-1.el6 will be an update --> Finished Dependency […]

Fixing “Public key for mod_cloudflare-*.rpm is not installed” Error

One recommended way to help secure your Postfix mail server is enabling TLS (Transport Layer Security) for connections to and from Postfix. You can search for more detailed descriptions of exactly how TLS works, but basically it’s a crypotgraphic protocol that allows connections between systems to remain secure. It relies on a key […]

Configure Postfix TLS with a Free StartSSL Certificate