If you ever find yourself locked out of a HPDM 4.4 to 4.7 installation, and it was installed against the default PostgreSQL database, this is how you can let yourself back in.
The on-board video card in the gt7725 isn't compatibe with ThinPro 5.2, but a modern add-on card works just fine.
Installing SNMPd on HP's ThinPro thin clients in 7 easy steps for fun and profit.
How to generate a square bubble background dynamically.
A quick explanation of why geothermal heat pumps work and why they can be more cost effective than any other commercial viable solution at present.
I'm starting a project to build a heatpump. It's a simple device from many prospectives, but finding some of the math critical to designing a refrigeration system can be hard to find.
Someone recently asked how to make a simple self-signed certificate with IPs in the SAN.
Bitcoin's ECC signature scheme will be broken by Quantum Processors some day. With an increasing interest in developing such technology it is only a matter of time.
Bitcoin keeps track of transactions in a database known as the block chain. It's growing everyday and if Bitcoin is every going to be really popular the size of the block chain is going to become an issue.
Every systems administrator should know at least three basic NTP configurations. These are: the Client, the Internal Server, and the Public Server. They're really quite simple, yet I see parts missing from default configurations all the time.
Heartbleed has been in the news quite a bit recently. If you haven't heard about it, there is a bug in OpenSSL's heartbeed code for TLS. Now there's proof that it does leak as much as they thought, it leaves the front door wide open.
In a previous article I covered the basic steps to make DNSSEC work at the most minimal level. While it works, it's not a good idea to just set and forget. Like all things security it needs regular maintenance. In the case of DNSSEC your keys need to be rolled regularly.
Defending your server against the NTP "monlist" Attack
Setting up DNSSEC on versions of BIND that do not support automatic signing