Ask nixCraft

Like most sys admin, I’m lazy. I try to automate almost all things in order to save time. Inexperienced sys admin and help desk staff working under me finds all these tools useful. It saves their time and avoids security issues. Automation allows help desk staff to do things that they don’t have enough direct system knowledge to do themselves. However, selecting correct tool and applying correct methodology is very important.

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The purpose of a debugger is to allow you to see what is going on inside another program while it executes. It is useful to find out what another program was doing at the moment it crashed. I know most people will recommend GNU gdb, Nemiver, Valgrind or IDE such as Eclipse. I use gdb when it is really required; otherwise I debug the old fashioned way using printf() or cout statements.

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I was going though my server logs / Google Analytics settings and found that over 60% users are on MS-Windows. However, each and every month visitors are switching to Firefox or Google browser and so on. So I would like to know your reasons for making switch from IE to another browser. Why did you switch and which browser did you switch to?

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From my mail bag: I’m seriously considering getting trained myself with a UNIX / Linux education. Can you give me some general idea about salaries for computer professionals with diploma or degree education? Salaries depends upon many factors such as: => Your country / location => Your credentials => Your level of experience => Your […]

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From my mailbag the other day I received an interesting question about network interface: I’ve 4 network card installed in my server and I need to find out which NIC is which? How do I tell which physical card is eth0 and which one is eth1 and so on using command line options? If my […]

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I got lots of emails asking about Ubuntu Linux and hard disk issue. Does it really shorten hard disk life? Noop. Unfortunately, some news and blogs reported news wrongly. Ubuntu doesn’t touch your hard drive power management settings by default. In almost all cases, it’s more likely to be your BIOS or the firmware on […]

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Many new Linux user / admin asks: Is Linux more secure than Windows? That depends. ;-) Let me explain: Fan boys on both sides argue to the death that their religion operating system is the best and safest to use. Windows is harder to secure than Linux. It is the simple truth. Many IT professionals […]

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