F5 BigIP Brute Force and Session Abuse

Multiple Users with Authentications from Singular, non-Whitelisted IP Basically I needed a way to determine if a series of users are connecting from a singular IP. This is particular useful during COVID-19 WFH constraints. The search is intended to look at the VPN index for a new session initiation, excluding all RFC1918 traffic as a […]

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Top Offending SSH Failure by Source IP

This displays a list of failed attempts against each connecting IP. Can be used to detect brute force from a particular source IP. You can then put a block up via ACL or whatever method you chose to mitigate the issue. The NOT clause on the first line ignore all attempts to logon to “invalid […]

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