Here some posts that I published. Enjoy!

IPv6 RADIUS Accounting

IPv6 RADIUS accounting of Delegated-IPv6 Prefix with Cisco IOS >15

IPv6 subnetting in command line with sipcalc

Some useful tips how-to subnetting a IPv6 network in command line with sipcalc

Java process >100%cpu, find the guilty thread

A java process is eating the whole CPU without reasons, find the responsible…

NTP out of sync each night

The clock of each VM drift each night misteriously