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debian linux

Q. I'm not able to run tracepath or tracepath6 under Debian Linux. tracepath is default under CentOS Linux. How do I install tracepath command under Debian Linux 4.x server? How do I find out what package owns the command under Debian / Ubuntu Linux?
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How To Set Caching DNS Server

Q. How do I set caching dns server to speed up dns lookup for my LAN (500 PC)? The DNS lookups creating a lot of network activity. There are a few times when this causes performance issues. How do I configure caching dns under Debian Linux?
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How To Secure Apache Proxy Server (mod_proxy)

Q. I've proxy (mod_proxy) enabled for Apache under Debian Linux 4.0 server. I'd like to use this to improve performance, but I don't want an open proxy that can be used by anyone on the Internets? How do I secure my proxy as limiting access is essential as I'm using a forward proxy?
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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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I'm setting up WordPress based blog system under Debian or Ubuntu Linux. I am getting an error which read as follows:

Tutorial details
DifficultyEasy (rss)
Root privilegesYes
RequirementsNone
Estimated completion timeN/A

Your PHP installation appears to be missing the MySQL extension which is required by WordPress

How do I fix this problem under Debian or Ubuntu Linux?
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Apache Log POST Data To A Log File

Q. How do I log POST data submitted by our user registration form to a log file under Debian Linux Apache 2 Web Server?
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Linux Downloads For Server / Desktop / Laptop Users

I would like to switch to Linux. I want to try free and functional operating system. How do I download Linux ISO images to install on my Desktop / Laptop / Server? Where can I download Linux operating system for my desktop usage?
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