I recently bought the 2.9″ ESPaper Plus Kit, WiFi ePaper display from ThingPulse.
To get this device working with my ansible configured SSL webproxy I had to get some additional debugging skills...
Sometimes if you do not properly delete objects in a Grails/GORM/Hibernate transaction the following error might occur:
deleted object would be re-saved by cascade (remove deleted object from associations)
This message is presented by the org.hibernate.ObjectDeletedException
After some hours of investigation I found a solution to find the cause!
On my new i3 setup I got no notifications of new MCabber events and messages.
Due to the decreasing performance of Android on my Nexus 10 and similar reports of other user I tried to install CyanogenMod 13. This caused some resolvable problems...
My Seafile instance is running on a dedicated webserver behind a reverse proxy which is handling the SSL encryption.
This setup with the protocol change on one of the webservers does not work out of the box / this case is not documented in the official server documentation.
If you would like to do the authentification in Java application running on Oracle WebLogic, you will probably wonder why the Authentification-Header does not reach the Filter.
We recently configured some applications to log with log4j's SocketAppender to Logstash.
When we startet to add MDC-Attributes we sometimes lost the connection:
| Error log4j:WARN Detected problem with connection: java.net.SocketException: (broken pipe)
Beim Duplex-Scan mit hp-scan erstellt mir die Software ein PDF-Dokument, wo auf allen Seiten unten ein weisser Rand ist und jede zweite Seite um 180 verdreht ist.
Zum Glück gibt es Tools, welche diese Probleme in wenigen Schritten beheben können
As a Linux using PostgreSQL and MySQL admin I am used to console tools. Therefore creating a sql dump (schema+data) from a MS SQL 2008 database is a challenging task.
Setting up sympa with virtual hosts in an environment using exim requires some small modifications:
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