Why some processes are listening only on tcp6

Hello all, I’m trying to set up monitoring tools for postgres but agents that installed listenin only on tcp6 and monitoring tools cannot connect over tcp6. node_exporter and postgres_exporter processes.

AF_INET6 is actually both bound on IPv6 and IPv4.

Those services are listening on all IP address, IPv4 and IPv6.

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thanks, I didnt know

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