where to find unhide-tcp for centos 6?

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http://unix.stackexchange.com – I've got a centOS 6 64 bit server, and have installed rkhunter. I spent some time running scans and tweaking things so that rkhunter throws up no warnings (e.g setting the PermitRootLogin var in /etc/rkhunter.conf to the same value as in my sshd.conf, and running rkhunter --propupd), however I still have one thing popping up in the logs: 872059-[10:57:36] Info: Starting test name 'hidden_ports' 872110:[10:57:36] Checking for hidden ports [ Skipped ] 872183-[10:57:36] Info: Unable to find the 'unhide-tcp' command After a bit of googling, it seems I need to install th (HowTos)