March 2018
Intermediate to advanced
626 pages
17h 32m
English
book
Network Analysis Using Wireshark 2 Cookbook - Second Edition
by Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss
Content preview from Network Analysis Using Wireshark 2 Cookbook - Second Edition
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To discover HTTP error codes, configure the display filter http.response.code >= 400. The same applies to SIP and any protocol that uses HTTP-like codes. To find known scanners, you can simply use the Edit | Find packet feature and look for common scanner names. In the following screenshot, you can see an example for Nmap, which is one of the common ones. We chose the string nmap.org (1) in Packet bytes (2).
Figure 19.22: Filtering to discover HTTP errors
And this is what we got:
Figure 19.23: Discovering HTTP error codes
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