Unix, Mac, Network support.

Although I am currently not training people on Mac systems, on Unix systems or on TCP-IP, I still get the occasional request to support organisations with their network and machine problems and configurations.

Most of the times I can help them out, and it is always nice to have someone up and running again. I do second line support for some unnnamed organisatios, that, if they cannot solve it themselves, give me a call.

For instance, someone called me that a Kerio mailserver was rapidly filling up their volumes. Turned out that a user had started to move things, got impatient and then did it again, and again, creating duplicates and triplicates and guintoplicates of every mail in the same mailbox, leading to a 1 TB mailbox. I wrote a deduplicator, that made sure that of every mail there was only one. It took some time (6 hours), but in the end the user had it 60 GB mailbox back.

For a number of companies I had set up a support contract, in which they pay a monthly subscription. Each year they get an report on the time spent on their behalf.