November 1999
Intermediate to advanced
576 pages
15h 3m
English
book
Large-Scale IP Network Solutions (CCIE Professional Development)
by Khalid Raza - CCIE, Mark Turner
Content preview from Large-Scale IP Network Solutions (CCIE Professional Development)
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Ad Hoc Abuse Issues
IOS contains a number of features that may be maliciously exploited. These are of particular concern to operators of large networks who may have very little control over or knowledge of who is using the network, or for what purpose. The following template lists services and features that you should consider turning off:
no service fingerno service padno service udp-small-serversno service tcp-small-serversno ip bootp servers
The finger service is unnecessary for tracking who is logged into the router. The AAA architecture discussed in this section provides a superior set of services for that. Known security risks are associated with the finger service, so it is better disabled via no service finger. The pad service is a relic ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.