I've setup 5 lighttpd web servers behind Nginx based reverse proxy / load balancer to distribute load for busy e-commerce website. However, all web server nodes putting my load balncers two IP address in access log file. How do I force lighttpd to log a real IP (public IP) address of all client computers visiting our website?

Answer to "mod_extforward: Lighttpd Log Clients Real IP Behind Reverse Proxy / Load Balancer"

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SNMP (Simple Network Management Protocol) is a protocol used for network management. How do I install SNMP server under Debian or Ubuntu Linux to configure various monitoring service?

Answer to "Debain / Ubuntu Linux: Install and Configure snmpd Service"

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How do I redirect 80 port to 8123 using iptables?

Answer to "Linux iptables: Port Redirection Example"

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How do I invert a protocol or ip address test while writing iptables based shell scripts?

Answer to "Iptables: Invert IP, Protocol, Or Interface Test With !"

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How do I call Oracle or MySQL sql statements in UNIX / Linux shell scripts?

Answer to "HowTo: Use Oracle / MySQL SQL Commands In UNIX Shell Scripts"

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I know how to open .chm files under Linux, but how do you open and view .CHM files under Apple Mac OS X?

Answer to "Apple Mac OS X Open And View .chm File"

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