{
    "content": [
        {
            "type": "text",
            "text": "# protocols(5) (man)\n\n**Summary:** protocols - protocols definition file\n\n## See Also\n\n- getprotoent(3)\n\n## Section Outline\n\n- **NAME** (2 lines)\n- **DESCRIPTION** (28 lines)\n- **FILES** (3 lines)\n- **SEE ALSO** (4 lines)\n- **COLOPHON** (7 lines)\n\n## Full Content\n\n### NAME\n\nprotocols - protocols definition file\n\n### DESCRIPTION\n\nThis  file  is  a  plain ASCII file, describing the various DARPA internet protocols that are\navailable from the TCP/IP subsystem.  It should be consulted instead of using the numbers  in\nthe  ARPA include files, or, even worse, just guessing them.  These numbers will occur in the\nprotocol field of any IP header.\n\nKeep this file untouched since changes would result in incorrect IP packages.  Protocol  num‐\nbers and names are specified by the IANA (Internet Assigned Numbers Authority).\n\nEach line is of the following format:\n\nprotocol number aliases ...\n\nwhere  the  fields are delimited by spaces or tabs.  Empty lines are ignored.  If a line con‐\ntains a hash mark (#), the hash mark and the part of the line following it are ignored.\n\nThe field descriptions are:\n\nprotocol\nthe native name for the protocol.  For example ip, tcp, or udp.\n\nnumber the official number for this protocol as it will appear within the IP header.\n\naliases\noptional aliases for the protocol.\n\nThis file might be distributed over a network using a network-wide naming service like Yellow\nPages/NIS or BIND/Hesiod.\n\n### FILES\n\n/etc/protocols\nThe protocols definition file.\n\n### SEE ALSO\n\ngetprotoent(3)\n\n⟨http://www.iana.org/assignments/protocol-numbers⟩\n\n### COLOPHON\n\nThis  page  is  part  of  release  5.10 of the Linux man-pages project.  A description of the\nproject, information about reporting bugs, and the latest version of this page, can be  found\nat https://www.kernel.org/doc/man-pages/.\n\n\n\nLinux                                        2012-08-05                                 PROTOCOLS(5)\n\n"
        }
    ],
    "structuredContent": {
        "command": "protocols",
        "section": "5",
        "mode": "man",
        "summary": "protocols - protocols definition file",
        "synopsis": null,
        "flags": [],
        "examples": [],
        "see_also": [
            {
                "name": "getprotoent",
                "section": "3",
                "url": "https://www.chedong.com/phpMan.php/man/getprotoent/3/json"
            }
        ],
        "section_outline": [
            {
                "name": "NAME",
                "lines": 2,
                "subsections": []
            },
            {
                "name": "DESCRIPTION",
                "lines": 28,
                "subsections": []
            },
            {
                "name": "FILES",
                "lines": 3,
                "subsections": []
            },
            {
                "name": "SEE ALSO",
                "lines": 4,
                "subsections": []
            },
            {
                "name": "COLOPHON",
                "lines": 7,
                "subsections": []
            }
        ]
    }
}