Tag Archives: Linux

Locking out the crackers

A lot of crackers have their scripts and probably also botnets running to break in into machines listening on the internet via more or less known vulnerabilites and trivial passwords. I recently happend to see 2 standard Linux tools to … Continue reading

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Linux sessions, process groups, processes, threads and the ps command

I don’t want to repeat the description how sessions, process groups, processes and threads all hang together in Linux. This description is pretty clear, there are plenty of others on the net. I keep forgetting what’s the main feature of … Continue reading

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Converting Epoch

It shouldn’t be big news that Linux (like Unix) uses Epoch as its internal calendar. Epoch is number of seconds since Jan 1, 1970 00:00 GMT. Wikipedia can tell more. The problem is just that as a humam it is … Continue reading

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Access control lists in Linux

Well, I have seem them some 20 years ago in AIX. Access control lists (ACLs) for Unix/Linux files. At least they existed, but I have never seen them used. I have used Linux for quite some while and it has … Continue reading

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Another nice Linux blog

http://linuxcommando.blogspot.com/ has nice tricks for technical user. Unfortunately a bit silent recently, but nice posts in the past, which are still interesting to read.

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udisks tells everything about disks

If you wonder any kind of technical detail of you disk drives (magnetical, optical or also USB mass storage) in Linux udisk is your friend. The command udisks –dump tells a lot. Technically udisks is not Linux (as in kernel), … Continue reading

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Watching how upstart works

Intructions how to turn upstart’s logging. For debugging or just for the curious user who likes to understand how things work. Continue reading

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