Network troubleshooting tools

Wednesday, 28 July 2004, 11:45 AM EST

Here's information on sniff and ngrep.

Let's start off with ngrep. I won't go into details about getting ngrep because there should be ready-made packages for most *nix systems easily available — if not installed by default.

As the name suggests, ngrep stands for "network grep." Like grep, ngrep searches for a string or regular expression — but does so on the network layer. This can be particularly useful in a number of cases when you're trying to troubleshoot problems, watch for interactions between programs on the network level, or just if you're nosey. It's also a good idea to play around with ngrep a bit just to see what kind of information other people might be able to glean by sniffing packets coming from your system.

By Joe "Zonker" Brockmeier at Unix Review.

[ Read more ]




Spotlight

Email scammers stole $215M from businesses in 14 months

Posted on 29 January 2015.  |  In 14 months there have been nearly 1200 US and a little over 900 non-US victims of BEC scams, and the total money loss reached nearly $215 million.


Weekly newsletter

Reading our newsletter every Monday will keep you up-to-date with security news.
  



Daily digest

Receive a daily digest of the latest security news.
  
DON'T
MISS

Fri, Jan 30th
    COPYRIGHT 1998-2015 BY HELP NET SECURITY.   // READ OUR PRIVACY POLICY // ABOUT US // ADVERTISE //