Remove Brother MFC 7640DN “replace drum unit” annoying message

Brother like any other printer producers what you do perform unnecessary costly replacements to components. We all know the lame affirmation: “quality parameters will no longer be met if producer recommendations are not followed”, but do I really need to replace the drum unit (like 80EUR) of a 200EUR printer after some 1000 pages ?… Read More »

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Use #letsencrypt to generate a wildcard domain certificate

I am an old user of letsencrypt that just found out that my old way of renewing my set of certificated is no longer supported. When running the usual “certbot renew” command, that was manually renewing my certificates, resulted in the error: 2019-04-06 17:38:19,072:WARNING:certbot.renewal:Attempting to renew cert (blog.voina.org) from /etc/letsencrypt/renewal/blog.voina.org.conf produced an unexpected error: Client… Read More »

Convert text label files to UTF-8 encoding

In a lot of multi-language enterprise applications where you have to support labels in different languages the text files with the different labels for each language are scattered across your source code. In my case I all the labels are kept in Java property files with “.properties” file extension. Then for each language I have… Read More »

Allow the use of a transacted session in a #Servlet with #JMS broker #Artemis

The open-source application server WildFly from which the RedHat owned JBoss application server is derived is one of the most used Java application server lately. This is caused by the strong market consolidation that is happening that caused the Java application server environment to become very restricted. Basically the only open-source enterprise grade Java application… Read More »

#EasyRSA Certificate based authentication of #SoapUI client to a secure WebService running on #JBoss or #WildFly application server

The following is a very quick guide on how to set up a EasyRSA certificate based authentication of SoapUI API client to connect to a WebService based API that runs on JBoss or WildFly. Generate a local CA with EasyRSA Download and install easy-rsa – https://github.com/OpenVPN/easy-rsa Go to the installation folder and change the following… Read More »

Migrate legacy application using Oracle 10g to Oracle 12c

After upgrading my developement Oracle database to 12c I discovered that an old legacy application still under support was no longer working throwing the following Oracle error: After some digging I found the following reported bug: Bug 14575666 In 12.1, the default value for the SQLNET.ALLOWED_LOGON_VERSION parameter has been updated to 11. This means that… Read More »