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Smell of rotten eggs in the server room

To answer the question: This is almost always a lead-acid battery failure causing the battery to vent hydrogen sulfide (H2S). The battery needs to be replaced as soon as possible. As an additional note, H2S can be extremely dangerous at higher concentrations. If you experience eye irritation or difficulty breathing or your ability to smell … Read more

How do I prevent accidental rm -rf /*?

One of the tricks I follow is to put # in the beginning while using the rm command. root@localhost:~# #rm -rf / This prevents accidental execution of rm on the wrong file/directory. Once verified, remove # from the beginning. This trick works, because in Bash a word beginning with # causes that word and all … Read more