What is the difference between tar and zip Sometimes sysadmins Linux need to save data safety and to this, it is recommended to compress the data. We…
Read moreIf the chmod binary was set to 000, how would you fix it? You can face a problem with /bin/chmod permission denied so you will be not able to apply for …
Read moreWhat is the difference between /dev/random and /dev/urandom to generate random data
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What is the difference between /dev/random and /dev/urandom to generate random data The Random Number Generator gathers environmental noise from devi…
Read moreHow can I redirect both stderr and stdin at once command > file.log 2>&1 : Redirect stderr to "where stdout is currently going". …
Read moreNSCD sometimes die itself and DNS resolving doesn't happen properly. How can we avoid NSCD for DNS and there is a disadvantage to bypass it
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NSCD sometimes die itself and DNS resolving doesn't happen properly. How can we avoid NSCD for DNS and there is a disadvantage to bypass it nscd…
Read moreI want to troubleshoot my network but I don’t know how does the traceroute command work exactly
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I want to troubleshoot my network but I don’t know how does the traceroute command work exactly Traceroute is a program that shows you the route tak…
Read moreWhat is the difference between CTRL-C and CTRL-Z When you have a process in progress which handle your prompt, there are some signals (orders) that w…
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