How to configure looback for iptables?

1

1kglv2020-07-19 22:50:05

iptables

1kglv, 2020-07-19 22:50:05

It is supposed to disable everything in iptables. And allow multiple ports.
Question - I allow outgoing looback connections if.
Does Input need to be allowed for looback ?

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hint000, 2020-07-20
@hint000

Yes, it needs to be allowed. Preferably at the very beginning of the INPUT chain, so as not to be mistakenly filtered by some prohibiting rule.
-A INPUT -i lo -j ACCEPT