Category Archives: HOWTO

Local mail on Linux workstations

Local mail on Linux workstations can still work very much like 20+ years ago on Unix. Every user has a mailbox under /var/spool/mail/. Some local services can produce administrative mails, namely cron jobs and security mails from sudo. However, computing … 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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Other than English keyboard layout?

Do you have an English keyboard? Well, you can probably skip this post, unless you are doing very international stuff. The following are my experiences with various flavors of Ubuntu. Normally the keyboard is selected during the installation. However, if … 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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