/usr/lib/firewalld/zones/external.xml is in firewalld 0.4.4.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | <?xml version="1.0" encoding="utf-8"?>
<zone>
<short>External</short>
<description>For use on external networks. You do not trust the other computers on networks to not harm your computer. Only selected incoming connections are accepted.</description>
<service name="ssh"/>
<masquerade/>
</zone>
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