我怎样才能防止 rkhunter 总是给我相同的警告？

Question

我每天都会从 Rootkit Hunter 收到这些警告：

---------------------- Start Rootkit Hunter Scan ----------------------
Warning: Package manager verification has failed:
         File: /usr/sbin/tcpd
         The file permissions have changed
Warning: Package manager verification has failed:
         File: /usr/bin/less
         The symbolic link target has changed
Warning: Package manager verification has failed:
         File: /usr/bin/telnet
         The file permissions have changed

----------------------- End Rootkit Hunter Scan -----------------------

是的 :-) 我rkhunter --propupd在这个问题出现之前和之后都运行过。没有变化，每天仍然收到这些警告。为什么？我该如何阻止它们？