This file is indexed.

/etc/strongswan.d/charon/unbound.conf is in libstrongswan-extra-plugins 5.6.2-1ubuntu2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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unbound {

    # File to read trusted keys for DLV (DNSSEC Lookaside Validation) from.
    # dlv_anchors =

    # Whether to load the plugin. Can also be an integer to increase the
    # priority of this plugin.
    load = yes

    # File to read DNS resolver configuration from.
    # resolv_conf = /etc/resolv.conf

    # File to read DNSSEC trust anchors from (usually root zone KSK).
    # trust_anchors = /etc/ipsec.d/dnssec.keys

}