If you have to deal with the Oracle DB (11g), Boolean values have no specific datatype yet. Some uses number - a SMALLINT, some uses a character - VARCHAR(1). Number or Character - which to choose? This post illustrates both approaches for the Oracle DB for Java with the major Persistence APIs JDBC and JPA.
This post explains the basic concept about a process on the Tandem. It also contains a (told) custom process presentation (Aiellogram) by Dennis Aiello, a tech trainer for Tandem computers from my training on the HP premises. The main conceptional focus is how to keep a process fault tolerant.
Structure of a config file: A Logstash config file has a separate section for each type of plugin you want to add to the event processing pipeline.
This post gives an example how to check an alias or aliases in elasticsearch with the REST-API.
nmap - Network exploration tool and security / port scanner - allows to scan an entire network and list all used or assigned IP addresses in a private network. This post shows a little example.
logstash allows with various plugins a quick solution, to convert CSV input to JSON output.
RPM allows optional scripts to be executed within the install and remove operation.
Seeing this Rpmdb checksum is invalid: dCDPT(pkg checksums) in RedHat or CentOS?
vi or vim (vi improved) has powerful ways to delete line. This post gives some examples.