How do I find out disk usage under UNIX operating systems using GUI, CLI and Perl / shell programs?
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I‘ve servers in two different data centers and connected via leased lines. How do I find out bandwidth latency and jitter between two servers using MS-Windows server, UNIX or Linux operating systems? How do I verify that my leased line based internet connection is stable between two data centers?
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I‘ve configured my Apache in chrooted jail at /jail/apache directory. However, my syslogd is not working and nothing gets logged using /dev/log and /jail/apache/dev/log. How do I fix this problem under CentOS 5.x AMD64 with SELinux?
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I know how to use rsync for Unix systems which synchronizes files and directories from one location to another while minimizing data transfer. However, I would like to synchronizing files between two directories, either on one computer, or between a computer and another server. How do I maintain the same version of files on multiple servers?
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What is the definition of L1, L2 and L3 UNIX / Linux / IT support? What is the meaning of L1,L2 and L3 IT support? What is level of support for sys admin jobs?
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