step 1
sudo apt-get install rkhunter
step 2
usual settings for (your mail server) postfix is Internet Site
step 3
depends on your local network or FQDN (hostname -f) ,cat /etc/hosts
(127.0.1.1 yourhostname.example.com yourhostname)=FQDN
step 4
sudo rkhunter –-update
step 5
step 6
sudo rkhunter --check
step 7
step 8
press ENTER to continue
step 9
keep pressing Enter to continue
step 10
step 11
sudo nano/var/log/rkhunter.log
step 12
step 13
step 14
suspect file : 1 /usr/bin/unhide.rb
step 15
sudo nano /usr/bin/unhide.rb
step 16
step 17
nothing wrong with this fail
Server is OK.
it took 14 minutes of time