poudenes
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poudenes

my Centos7 VPS is using promiscuous mode / rkhunter warning

March 10, 2015 1.2k views
Logging Security Networking CentOS

Hello,

Since couple of days RKHUNTER report this warning:

Warning: Possible promiscuous interfaces:
'ifconfig' command output:
eth0: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500
'ip' command output:
eth0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000

When i do :

ifconfig eth0 -promisc

and do rkhunter --propupd then the msg is gone. but every time the warning come back later.

What does this mode mean? And how can i disable it on a centos 7 machine?

Kind Regards,
Peter

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