Le 16/03/2016 23:05, CpServiceSPb . a écrit : > I have isc-dhcp-server installed at ubuntu 14.04 x64. > Its version is 4.2.4 > I have fully disabled IPv6 at OS. > Also I have "-4" option for dhcp server startup. > But there is one IPv6 listened address by netstat -anupt.
Disabling IPv6 on Ubuntu 18.04, 19.04 – Vassox Disabling IPv6 on Ubuntu 18.04, 19.04. by Lima | Posted on September 15, 2019 September 24, 2019. Last Updated on September 24, 2019. IPv6 adds another layer of complexity when configuring a machine for a simple task. Namely, infrastructure services such as DNS, DHCP and even xRDP can be much easier to troubleshoot without IPv6 complicating issues. Ubuntu Manpage: ip6tables — IPv6 packet filter administration LOG Turn on kernel logging of matching packets. When this option is set for a rule, the Linux kernel will print some information on all matching packets (like most IPv6 IPv6-header fields) via the kernel log (where it can be read with dmesg or syslogd(8)). This is a "non-terminating target", i.e. rule traversal continues at the next rule.
How to Configure IPv6 on Ubuntu 18.04 | DevAnswers.co
This tutorial explains how to disable IPv6 in Ubuntu 18.04/16.04 (compatible with both Ubuntu server and Desktop version). There are a couple of ways we can disable IPv6 on Ubuntu server. One method is to turn off IPv6 using sysctl, the second method is to edit the grub config file. Dec 21, 2019 · With IPv6 comes a suite of problems different to those of IPv4 (many of which can be referenced online, given the age of this protocol), giving your system another layer of complexity. Disabling IPv6 on Ubuntu [For Advanced Users Only] In this section, I’ll be covering how you can disable IPv6 protocol on your Ubuntu machine. Apr 19, 2017 · To re-enable IPv6 on Ubuntu, simply remove those 3 lines in 99-sysctl.conf file and run sudo sysctl -p command to load the changes. That’s it! I hope this tutorial helped you disable IPv6 on Ubuntu desktop and server.
Enabling IPv6 on a Droplet gives you access to its 16 additional IPv6 addresses. Overview; Quickstart; How-To; Resources; When you enable IPv6 on a Droplet, both the IPv4 and IPv6 interfaces are available. You can disable IPv4 and rely solely on IPv6, although you will still need to have IPv4 available for the localhost so your programs operate
I would edit the ufw config file itself to turn off IPv6: sudo nano /etc/default/ufw Change the line that says: IPV6=yes to IPV6=no then restart the ufw service.