Here’s how to disable the protocol on a Red Hat-based system:
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# sysctl -w net.ipv6.conf.all.disable_ipv6=1 # sysctl -w net.ipv6.conf.default.disable_ipv6=1 |
To re-enable IPv6, issue the following commands:
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# sysctl -w net.ipv6.conf.all.disable_ipv6=0 # sysctl -w net.ipv6.conf.default.disable_ipv6=0 |
Here’s how to disable the protocol on a Debian-based machine.
1. Open a terminal window.
2. Issue the command sudo nano /etc/sysctl.conf
3. Add the following at the bottom of the file:
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# net.ipv6.conf.all.disable_ipv6 = 1 # net.ipv6.conf.default.disable_ipv6 = 1 # net.ipv6.conf.lo.disable_ipv6 = 1 |
4. Save and close the file.
5. Reboot the machine.
To re-enable IPv6, remove the above lines from /etc/sysctl.conf and reboot the machine.