Rowanto Luo


Just another blog. or log.


  1. Java 8 - Turning off SSL Certificate Check

    There's usually no good reason to turn off SSL certificate check. So this is actually wrong in many ways, but maybe we're still developing in an isolated dev environment and somehow the dev machine of another application you're depending on only allows SSL connection even though it doesn't have a…

    on java, java8, ssl, https

  2. AWS Eb CLI (v3): How to fix ssl_wrap_socket error in Debian Jessie

    This is the first time I'm deploying stuff to elasticbeanstalk, and when I'm trying to deploy my private project, I realized the eb cli I download is the version 2 and has different syntax. I installed the version 3, and it seems like it can only be installed using python…

    on debian, problem, eb, aws, elasticbeanstalk, eb cli, jessie, python, ssl_wrap_socket

  3. How Positive Thinking and Negative Thinking Could Go Wrong

    Pretty much every people who I met understood the concept of positive thinking wrong. Usually what happens is, they are confronted with a problem, and they will say, "Don't worry. Everything will be fine". Afterwards, they said it's positive thinking. The problem here is, we have a problem…

    on negative thinking, positive thinking, automatic meaning injection

  4. How to fix libgdbm3 update problem in Debian

    In case you recently tried to update your debian system, and got an error related to libgdbm3 like this: Preparing to unpack .../libgdbm3_1.8.3-13+b1_i386.deb ... Unpacking libgdbm3:i386 (1.8.3-13+b1) over (1.8.3-13) ... dpkg: error processing archive /var/cache/apt/archives/libgdbm3_1.…

    on debian, problem, libgdbm3

  5. Lessons learned in Øredev 2014

    Recently I visited the Øredev 2014 conference. I must say that it's a pretty good one. Some of the talks are pretty boring, but most of them are actually pretty nice. I was in the security training, and the three days conference. I tried to avoid going to the talks…

    on Øredev