We mention only Ubuntu Linux, Centos and Windows. Wireshark runs on various operating systems and is easy to install. In the manual, we will explain how to use such a powerful tool. These examples are just the tip of the iceberg.
Analysis of vulnerability testing procedures to distinguish between false positive and false negative triggers. Understanding what network traffic comes from scanners. Extract large DNS responses and other anomalies that may indicate malwareĬhecking port scans and other types of scans for vulnerabilities. Filtering "normal" data and identifying unusual. I / O plots for detecting persistent connections (beacons) with management servers. Search for unusual domains or destination IPs. Detection of abnormal behavior that may indicate malware. Same as HTTP export option, but extracting files transferred via SMB, file sharing protocol in Windows. Exporting objects from HTTP, such as javascript, images, or even executable files. Ack from the server confirming the request. Customer request at the proposed address. The second step is the exchange of DHCP (DHCP Offer) with the address and parameters. Troubleshooting DHCP with packet level data 
View SMTP and POP3 traffic, read emails.View Telnet sessions, view passwords, entered commands and responses.Full view of HTTP sessions, including all headers and data for requests and responses.Study of application-level sessions (even when encrypted using SSL / TLS, see below) Schedule for packets with a long delay response.Wireshark is useful for many tasks in the work of a network engineer, security specialist or system administrator.
Even a superficial knowledge of the Wireshark program and its filters will save time by an order of magnitude when troubleshooting network or application problems.
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