proc filesystem

IOzone is a filesystem benchmark tool. The benchmark generates and measures a variety of file operations. Iozone has been ported to many systems and runs under many operating systems including Windows, UNIX, Linux and BSD. This article gives you a jumpstart on performing benchmark on filesystem using iozone a free Filesystem Benchmark utility under Linux.

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If your Linux server is opening lots of outgoing network connection, you need to increase local port range. By default range is small. For example squid proxy server can come under fire if it runs out of ports. You can use sysctl command to to modify kernel parameters at runtime. The parameters available are those […]

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Chrooted jail allows run command or service such as http / mysql / postfix with special root directory i.e. chroot changes the root directory for application. The biggest benefit is a service that is re-rooted to another directory cannot access files outside that directory. Basically you are going to set service in sandbox. Chrooting offers […]

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Yet another newbie question that suggests people love to kill and show their power to rest of the world ;)

There is a package called procps. It includes various useful (nifty) utilities. One of such utility is skill which is responsible to send a signal to users and process such as:

  • Halt user terminal
  • Kill user and logout

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