Month: February 2016

  • Problems with installing Oracle DB 12c EE, ORA-12547: TNS: lost contact

    Problems with installing Oracle DB 12c EE, ORA-12547: TNS: lost contact

    For development purposes I wanted to install Oracle Database 12c Enterprise Edition to Vagrant box so that I could play with it. It should’ve gone quite straight forwardly but in my case things got complicated although I had Oracle Linux and the pre-requirements fulfilled. Everything went fine until it was time to run the DBCA…

  • Using Let’s Encrypt SSL certificates on Centos 6

    Using Let’s Encrypt SSL certificates on Centos 6

    Let’s Encrypt is now in public beta, meaning, you can get valid, trusted SSL certificates for your domains for free. Free SSL certificates for everyone! As Let’s Encrypt is relatively easy to setup, there’s now no reason not to use HTTPS for your sites. The needed steps are described in the documentation and here’s short…