From the category archives:

UNIX

Q. How do I view active connections with PF firewall under FreeBSD / OpenBSD UNIX operating system?

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Q. Some service provider guarantees 99.999% uptime for their service. Can you explain meaning of five nines?

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Q. How do I create username or user groups in upper case under Linux / *BSD / UNIX operating systems?

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Q. How do I capture specific protocol or port such as 80 ( http ) using TCPDump tool under Linux / UNIX? How do I recording Traffic with TCPDump and find problems later on?

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Q. How do I ignore hidden .dot files while searching for files? How do I ignore or exclude certain files while running Linux / UNIX find command?

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Q. How do I ignore shell aliases or function when running a command without removing alias / function from memory or current shell session?

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Q. How do I run Quicken personal finance management software or propitiatory Windows tax software under GNU/Linux?

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Q. How do I extract images from a PDF file under Linux / UNIX shell account?

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Q. I’ve followed your Xcache php 5.x opcode cacher installation under RHEL 5 for my vbulltin board. I see good boosting in performance. Now I’ve installed 2nd VB forum on the same server and I see all sub-forums hosted from 1st forum. So I had to disable Xcache. I want Xcache for both board on same host. How do I fix this mess?

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