The cpio(1) name is derived from CoPy In and Out. Cpio was standardized in POSIX.1-1988, but it was omitted from POSIX.1-2001 because of ...
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The DNS is an essential part of the internet, it translates hostnames such as 0x9900.com into IP addresses 149.20.56.139. DNS also plays ...
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Everyone knows that filenames and variables can contain spaces, but when it comes to writing a shell script most of the shell developers ...
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When writing code it's important to make sure all the variables are defined. Using an undefined variable can lead to all sorts of ...
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At home I have two networks, one for my family and me and one for my guests. Once you are on the family network you can access our ...
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You can build a highly accurate Stratum-1 NTP Server for less than $100 using an old Wyse WinTerm, a GPS and a few electronic components.
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One of the tasks of system administrators is to secure the machines inside of their network. To do so you usually configure access lists ...
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