How am I supposed to read these log files ? when utmpdump, is not available. Using things like “who” or “strings” will not parse everything the right way, obviously. Why has this been removed?
try
sudo apt install util-linux
if its not installed try find it with comant which utmpdump should return /usr/bin/utmpdump
if not then install it from git hub
git clone https://github.com/util-linux/util-linux.git cd util-linux
I’m not a Kali user myself but in my opinion it would be sensible for Kali Linux to fork the util-linux package to resume building the utmpdump (and last, but renamed) commands as these are surely sensible tools to have available to interrogate system files. It is only by package configuration that these are no longer built - they will build and run fine otherwise. Also note you can build these same tools from the sysvinit source package as well: Add sysvinit-utmp-utils package (!14) · Merge requests · Debian / sysvinit · GitLab