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Special Forums Cybersecurity How to use Netfilter properly with IPv6? Post 302991409 by 1in10 on Friday 10th of February 2017 06:49:20 AM
Old 02-10-2017
Debian 8.x works a bit more sophisticated on that issue, but check on the GUI your network configurations. Probably there should be an icon where you can disable the IPv6 support and the whole thing. Traffic will not even be started on that. If it works like this, fine, otherwise, try to find the interface in /etc and may comment it out. Hope that helps. Cheers.
Once you have the opportunity to look at the network interfaces and their connections, you can disable or enact them, as well you can set the DNS and the Gateway. The complication of Debian is, that it offers two of that tools.

Last edited by 1in10; 02-10-2017 at 07:51 AM.. Reason: explanation
 

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USERNETCTL(8)						      System Manager's Manual						     USERNETCTL(8)

NAME
usernetctl - allow a user to manipulate a network interface if permitted SYNOPSIS
usernetctl interface-name up|down|report DESCRIPTION
usernetctl checks to see if users are allowed to manipulate the network interface specified by interface-name, and then tries to bring the network interface up or down, if up or down was specified on the command line, or returns true or false status (respectively) if the report option was specified. usernetctl is not really meant to be called directly by users, though it currently works fine that way. It is used as a wrapper by the ifup and ifdown scripts, so that users can do exactly the same thing as root: ifup interface-name ifdown interface-name and ifup and ifdown will call usernetctl automatically to allow the interface status change. OPTIONS
interface-name The name of the network interface to check; for example, "ppp0". For backwards compatibility, "ifcfg-ppp0" and "/etc/sysconfig/net- work-scripts/ifcfg-ppp0" are also supported. up|down Attempt to bring the interface up or down. report Report on whether users can bring the interface up or down. NOTES
Alternate device configurations may inherit the default configuration's permissions. RHS
Red Hat, Inc. USERNETCTL(8)
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