With MacOS Catalina (10.15), Apple decided to decrease the possibilities of system users to install software applications within the system.…
How to disable the www-data user to send emails with postfix
Sometimes an insecure configuration allows spammer to use the www-data user to send emails with you postfix server. Normally this…
20min Handson ZFS
ZFS is often called the last word in file systems. It is a new approach to deal with large pools…
solving Security Error while starting Java WebStart (e.g. IPMI Remote)
Most of the IPMI Systems out there still using good old Java based Remote Applications to connect to the remote…
Find a Class in a bunch of JAR Files
for j in *.jar; do echo $j:; jar -tvf “$j” | grep -Hsi ClassName; done Iterate over every jar in…
SSH Tunnel RDP Session over another Host
Let’s say you want to tunnel an RDP connection via SSH.User: phausSSH-Server: ssh.example.comRDP-Server: win2k8.example.com You need to run that script…
Fixing Error installing cocoapods on MacOS
If you installing cocoapods on a vanilla MacOS System you might get some error like this: The important error is…
use 3rd party Dependencies in your Maven Project
Deploy your JAR to your local (file) Repository. You shold also commit this to your CVM System. You can also…
Map Char to Alpha Position with Java
Sometimes, you would like to have Mapping Char to Int ( A = 0, B = 1, etc.)One easy way…
using an ISP SMTP for sendmail
Just a Link: http://cri.ch/linux/docs/sk0009.html