Information Security

Backtrack 4: Information Gathering: Route: Lanmap – Passively map a network

Lanmap is one of those tools I never really used until now. Its actually very cool. Lanmap sits quietly on a network and builds a picture of what it sees and outputs it in svg,png or gif format. I let it run on a test network far a hour or so and was impressed with the output. The only drawback is that it doesn’t “see” through switches so it can only do the private subnet the computer is physically on.

Technology Errors

Gentoo Linux: eth0 Stops Working During Install Using Minimal Install CD

I started an install of Gentoo Linux this morning on a desktop at my house so I could test some browser stuff that purehate was seeing via his Gentoo laptop. I don’t think I have ever installed Gentoo but its possible a couple years back I installed it in the same scenario. Anyway I decided to download the x86 minimal install CD for the installation. After it was burned to CD I booted my desktop up and started the install. Once it was booted I configured the network interface, which in this case was eth0, and was able to test without issue to the Internet using ping. I proceeded with the installation including writing the partition table, creating the file system, and mounting my drives. The next step involved using links to open a URL to select a mirror and to my surprise it failed. Below I go into detail about the problem I ran into and the steps I took to resolve the issue.