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A Journey of a Thousand Miles Begins with a Single Step

Filter messages in JBoss Logging

Working with Hibernate and Oracle DB 10 g lead to a massive amount of warnings on the logs. This post demonstrates how to filter these warnings, if they don’t apply to the situation, in JBoss EAP or Wildfly.

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Setup Postfix TLS with Let's Encrypt certificates

Another usage of the Let’s Encrypt certificates, is to use it for Postfix TLS. On Debian 8 edit the /etc/postfix/main.cf.

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Secure your FTP server with Let's Encrypt certificates

This post illustrates a quick setup for ProFTPD with TLS. It allows only TLSv1.2 secured connections with Let’s Encrypt certificates.

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Disable online search results in Unity

Using the new unity desktop is quite manageable. What annoys me is that every search term in the launcher is also invoking an online search. Therefore I found a quick way to disable it for my user.

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Check SSD cache on HP Pavilion 500-330nz

Just needed to upgrade to Windows 10 on my Desktop. I was curious if the SSD caching still works, but it was hard to find or lookup any information about the Condusiv Express Cache. Finally I could found at least the responsible program.

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Code Review - Boolean's Delight

Did some code review and saw some fancy lines :-( It is about JSON handling with Jackson. Basically is about how to determine that a given JsonNode is not null and a container.

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Major logstash changes in the email output plugin

Today I was looking on the upgrade of logstash 1.5.4 to newest version 2.2.0 in the office. There are some configuration breakers. One of them, is in the email output plugin.

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Disable shard allocation of your Elasticsearch nodes

If you going to upgrade your cluster or restart a node, it is wise to disable the shard allocation on that node. This prevents Elasticsearch from rebalancing missing shards until you tell it otherwise. This post demonstrates how to disable and enable shard allocation.

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Check for responsive Elasticsearch instance in a shell script

This small shell script checks if an Elasticsearch instance is running by querying the REST API.

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