Sometimes it is a good idea to examine which ports are open on your server and often you like to know how many are connected to you server, and who they are. This is possible with the tool netstat which Continue reading
I recently needed a way to automatically reboot my router every night. There were however no build-in way to do this in the router provided by my ISP. My router is a P-2601HN-F1. Therefore I was forced to write my Continue reading
In this little guide, I will describe how to find out, how many parallel threads are used on an Oracle database. The first place we need to look, is in the v$session view, where all information about sessions are stored. Continue reading
I have through the years installed many Debian installations. I prefer an installation with a tree disk raid 5 setup. Here I at minimum add three raid partitions. SWAP (size 2 x RAM size) RAID BOOT (512 MB) RAID [boot Continue reading
For some time ago i bought a DIY serial I/O interface with 24 input ports and 36 output ports. The serial board is from Brink elektronik and has the product code BR847. As far as I can see, they do Continue reading