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CentOS / Red Hat Linux Install PHP 5.x PECL Filter Extension

Q. How do I install filter extension for safely dealing with input parameters supplied via a web form using filter_var()?
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Sysadmin because even developers need heroes!!!

Red Hat / CentOS Linux Install Cluster Suite Software

Q. How do I install Cluster Suite software on CentOS Linux 5 IBM server for testing purpose?
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How do I know When I Need To Update My Linux System Software?

Q. 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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Linux / FreeBSD: Multiple IP Addresses on One Interface

Q. Can one Linux / BSD system respond to multiple IP address on a single Ethernet interface? I need to run multiple web sites and mod_ssl with a single server. How do I configure my box for multiple IP address?
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Where Does Linux Save Wireless Card Settings?

Q. I’d like to get more information about my wireless settings stored under CentOS / RHEL / Fedora Linux. Where Does Linux Save Wireless Card Settings?
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Red Hat / CentOS Setup Routing Metric For Network Device

Q. How do I set the routing metric on my network device under Fedora / RHEL / Red Hat / CentOS Linux server / workstation operating system?
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WebEx Linux

Q. Does WebEx works under Linux or UNIX operating system?
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Disable a Firewall In Red Hat Enterprise Linux

Q. How do I disable a firewall in RedHat Enterprise Linux / RHEL?
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HowTo Disable The Iptables Firewall in Linux

I need to disable firewall in Linux for testing purpose. I’m using CentOS and RHEL version 4.4 / 5 / 6. How do I disable the firewall in Linux?
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Linux Creating or Adding New Network Alias To a Network Card (NIC)

Q. I would like to create alias for my network card (NIC). How do I setup 2 IP address on One NIC? How do I add alias under Centos / Fedora / Debian / Ubuntu Linux?
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