May 2001
Intermediate to advanced
528 pages
12h 59m
English
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Recommended Minimum IOS Security Settings
This section deals with the basic minimum configurations that all enterprises should employ on their routers. Although some of the commands explained in this section are disabled by default, the administrator is urged to deny specifically those services and routes that are not needed. The following topics are covered:
Denying RFC 1918 routes
UDP and TCP servers
Finger service
IP unreachables
ICMP Redirect messages
Directed broadcasts
Proxy Address Resolution Protocol (ARP)
IP Unicast
IP source routing
Denying RFC 1918 Routes
All border routers within a company that is concerned with security should have some specific routes denied. RFC 1918 defines the ranges of IP addresses available for use on the Internet, ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.