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Router Forwarding Profile

Networking · medium · solved in-browser (no VM needed) · 3 tiered hints

Write /etc/sysctl.d/95-router.conf turning the host into a router: enable net.ipv4.ip_forward (value 1), raise the connection backlog net.core.somaxconn to 1024, and disable ICMP redirect acceptance with net.ipv4.conf.all.accept_redirects set to 0. (Authored config, graded structurally — the engine isn't run here.)

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