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Doesn't port 80/http need to be explicitly opened like other ports (such as 443/https or 8080/server), or is it a special case?

on my machine (CentOS Linux release 7.3.1611)

firewall-cmd --list-ports

8777/tcp 443/tcp 8080/tcp 8000/tcp

(nothing re: port 80)

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http is service and will show in services query.

Use firewall-cmd –get-services to show current active services.

A service in firewalld is described as an xml file. There is one section named ports. Ports section of service http is 80.

  • ok, and I suppose http in the services list can be associated with port 80 via /etc/services. or is there a more direct association between service and port number? – theRiley Jul 17 '17 at 2:46

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