Here's a hook to record WHMCS client area logins, along with IP address and RDNS host:
https://github.com/damianharouff/whmcshook-recordlogin
Put it into yourWHMCSdir/includes/hooks/ and it should begin showing logins under the Log tab on the client's profile. Example:
Image may be NSFW.
Clik here to view.
If you don't like the name of the file or function having "ipxcore" in it, feel free to change to whatever you'd like.
Also, thanks to @serverian for helping me with a hurr-durr problem with it before release.
