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How to check if IPv6 is enabled

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What command should I use to check if IPv6 is enabled on Debian based VPS?

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You can use the following command to check if IPv6 is enabled or not.

sysctl net.ipv6.conf.all.disable_ipv6

If the output is 1, IPv6 is disabled. You can enable it temporarily by running:

sudo sysctl -w net.ipv6.conf.all.disable_ipv6=0
 

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