On Mon, 2015-02-09 at 11:31 -0600, Valeri Galtsev wrote: > I guess, this discussion (about security of your system and what affects > it) should be ended by the reference to fundamental book on Unix system > [administration]. One thing I learned: you can not become proficient in > any subject just by reading sparse blogs about it. One thing you > definitely need: very good understanding of underlying fundamentals. For > this reason the most productive would be to think if you have very good > general understanding of how Unix (or Unix-like) system works. The easiest > is to start reading good book about it, and if you see you are making > discoveries, then this is definitely what you are missing, and what you > need to study before diving into discussion what is good for security and > how it affects that. That would be what I would recommend to myself (which > I did way back...). If I were choosing the book to get good start today, I > would choose: > > UNIX and Linux System Administration Handbook (4th Edition) 2010 by Evi > Nemeth and Garth Snyder > > - don't worry about "outdated...", remember, you first need fundamentals. Brilliant logic about ignoring the publication date. I did a Google on "UNIX and Linux System Administration Handbook (4th Edition) 2010 by Evi Nemeth and Garth Snyder" The third item was a 16.1 MB PDF of 1,344 pages. A quick scan of the PDF shows every page appears to be readable. 11 pages devoted to BASH. Information on other interesting topics too. Although I have a natural preference for paper books (I became a computer person at a large international book publisher) and I like the ability to annotate text, the PDF is definitely a useful and informative read. Thanks Valeri. I. -- Regards, Paul. England, EU. Je suis Charlie.