After updating a database from Postgres 9.6 to 10 all applications stopped working. The error message in the server log file is “Unable to load requested class: pg-uuid”.
Author: Joern
Protected: Judiths Geburtstag
PgModeler 0.9.0-alpha1 out
Developer Raphael Araújo e Silva released PgModeler 0.9.0-alpha1 on February 7th, 2017. See my previous post “install PgModeler from source” for manual installation. It also works with the 0.9.0-alpha1 release.
Photos Hoevelmarkt 2016 / Fotos Hövelmarkt 2016
Auch dieses Jahr habe ich wieder viele Fotos beim 202. Hövelmarkt (30.09.2016 – 03.10.2016) gemacht. Die Bildergalarien sind unter http://www.hoevelmarkt.de verfügbar.
Also this year I have taken many photos during the 202. Hövelmarkt (30th September to 3rd October 2016). The collections are available under http://www.hoevelmarkt.de.
build PgModeler from source
PGModeler (http://www.pgmodeler.com.br) is a nice tool to design your (PostgreSQL) database. It supports import from and export to a databases. Ubuntu 15.10 comes with a quite recent version but e.g. Debian does not provide it in the repository. In this post I explain howto build the application on Linux (tested on Debian 8) from source.
VirtualBox: Shrink dynamically extended image
A VirtualBox image needs to be shrinked again from time to time. Due to usage, updates, testing the size of the VDI files grows. The following post shows how to shrinken the VDI files again.
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Set UTF-8 encoding on Netbeans
Update Netbeans file encoding
If you use an operating system which default file encoding is not UTF-8 (e.g. Windows) it is sometimes beneficial to change the file encoding NetBeans IDE will use.
Protecting servers with fail2ban – Postfix mail server
The next post of the fail2ban series will handle the protection of postfix mail servers.
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Photos Hoevelmarkt 2015 / Fotos Hövelmarkt 2015
Photos Hoevelmarkt 2015
I took some (actually a lot) photos on Hövelmarkt 2015. A collection has been published on http://www.hoevelmarkt.de/Bildergalerie/.
Fotos Hövelmarkt 2015
Ich habe einige (genau genommen viele) Bilder für den Hövelmarkt 2015 gemacht. Eine Auswahl ist unter http://www.hoevelmarkt.de/Bildergalerie/ zu sehen.
Protecting servers with fail2ban – Apache HTTPd webserver
In the next part of the series, the protection of webservers is explained. In this example I use Apache HTTPd webserver. Similar configurations are also available for e.g. nginx. There are various reasons for protecting the webserver itself (webapplications installed will be described in on of the next posts). Attackers are e.g. scanning the server for vulnariblties or try to attack the server using invalid input.
Continue reading “Protecting servers with fail2ban – Apache HTTPd webserver”