Article ID: 6577, created on Aug 5, 2009, last review on May 11, 2014

  • Applies to:
  • H-Sphere

Symptoms

Parallels H-Sphere Control Panel can not pass PCI (payment card industry) scan because off the following Security warning found on port/service "mdns (5353/udp)":
"mDNS Detection"

Resolution

Filter incoming traffic to UDP port 5353 if desired.

# netstat -anp|grep 5353
udp        0      0 0.0.0.0:5353                0.0.0.0:*           2013/avahi-daemon:
udp        0      0 :::5353                     :::*          2013/avahi-daemon:

avahi is the daemon which runs on client machines to perform Zeroconf service discovery on a network.

Parallels H-Sphere do not requires the service to be run, so it is  required to completely disable it.

The following tools used to disable services:

# service avahi-daemon stop
# chkconfig avahi-daemon off
# chkconfig --del avahi-daemon

f213b9fa8759d57bee5d547445806fe7 6311ae17c1ee52b36e68aaf4ad066387

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