O'Reilly logo

CCNA Cyber Ops SECOPS - Certification Guide 210-255 by Andrew Chu

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 4: Identifying Rogue Data from a Dataset

More details on the grep command can be found at http://man7.org/linux/man-pages/man1/grep.1p.html. More details on the cat command can be found at http://man7.org/linux/man-pages/man1/cat.1.html.
  1. (2) The 10\.114\.115\.\d{0,3} search string would match all of the addresses in the network. The /24 prefix means that the first three octets (10.114.115.) must be the same for every address in the network. The final octet can be any number that's up to three digits long (actually, only up to 255; this regex string doesn't specify the top limit). 10.114.115.55 would only match the IP address stated, although it would also match longer strings as the lack of an escape character before the period ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required