http://www.trinler.net/de/service/tools/ipcalc.html
http://www.bresink.com/products.html
http://www.horland.de/scan2pdf.html
http://www.softwareok.de/?Download=WinScan2PDF
https://discussions.apple.com/index.jspa
http://www.sparklabs.com VPN-MAC
http://www.securepoint.de/produkte/utm-firewalls/vpn-client.html
http://documentation.dbernhardt.com/index/article.html
http://forum.qnap.com/index.php
https://www.sicherheitstest.bsi.de/
https://www.malwarebytes.com/mac/
https://adoptopenjdk.net/ Java Alternative Open Source