lvance's tutorials

Port redirect to inside host on a Cisco PIX firewall

Contributed by lvance on September 23, 2004 under Cisco firewall

How to configure a PIX to redirect traffic to an inside host via port re-direction. An expample would be if you allowed your PIX to get its external address via DHCP but you wanted to access a ftp server on the inside of your firewall as well as maybe another host for vnc.

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Sniffing with TCPDump

Contributed by lvance on August 28, 2004 under UNIX

How to sniff a network with TCPDump. TCPDump comes installed on Linux by default. You will have to install the package on Solaris. This is just a simple sniff.

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How to make Solaris reject remote logging

Contributed by lvance on February 27, 2004 under Solaris system administration

This will make Solaris reject remote logging from other devices.

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Apache-Website Security

Contributed by lvance on under Linux security

Simple clear Security for Websites running on Apache. This can be on any flavor of Unix

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Configuring OSPF on a Cisco router

Contributed by lvance on October 10, 2003 under Cisco router

This recipe describes configuring OSPF (Open Shortest Path First) in a Cisco router. OSPF was created to provide a more scalable dynamic routing solution than RIP. OSPF utilizes less bandwidth because, once established, it only sends routing table updates when there are changes.

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Static map to internal device on a PIX

Contributed by lvance on October 4, 2003 under Cisco firewall

How to add a static map through a PIX to a device on the inside of your network. A one to one translation.

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sys-unconfig: Reconfiguring network settings on a Solaris box

Contributed by lvance on October 3, 2003 under Solaris

This command will unconfig a solaris box back to its original state. It takes you back to the original setup for the network settings for the box. You will be prompted for the ip address, default route, etc just as if you were re-installing the operating system.

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