linux system

How do I know when I need to update my Linux system? How do I know new patches are available for CentOS Linux (Red Hat) / Debian Linux server system?

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How do I reboot my Linux based system? How do I reboot a remote Linux system or server using command line?

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Q. How do I set the real time scheduling priority of a process under Linux operating system using a shell prompt?

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Q. Is There a UNIX / Linux unerase or undelete command? How do I undelete files under a UNIX / Linux system?

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Before I can start using IPv6 on a Linux server, how do I test, whether my Linux server system is IPv6 ready or not? If not, how do I enable IPv6 support under Redhat Enterprise Linux version 5?

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I just need a help to show me how to setup java path on Linux. How can I set JAVA_HOME and PATH variables for every user under my Linux system?

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