/etc/ is in trafficserver 3.2.4-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/etc/init.d/
/etc/init.d/trafficserver
/etc/trafficserver/
/etc/trafficserver/body_factory/
/etc/trafficserver/body_factory/default/
/etc/trafficserver/body_factory/default/README
/etc/trafficserver/body_factory/default/request#syntax_error
/etc/trafficserver/body_factory/default/timeout#activity
/etc/trafficserver/body_factory/default/access#proxy_auth_required
/etc/trafficserver/body_factory/default/connect#dns_failed
/etc/trafficserver/body_factory/default/request#no_content_length
/etc/trafficserver/body_factory/default/timeout#inactivity
/etc/trafficserver/body_factory/default/connect#hangup
/etc/trafficserver/body_factory/default/access#ssl_forbidden
/etc/trafficserver/body_factory/default/default
/etc/trafficserver/body_factory/default/response#bad_version
/etc/trafficserver/body_factory/default/request#no_host
/etc/trafficserver/body_factory/default/access#denied
/etc/trafficserver/body_factory/default/redirect#moved_temporarily
/etc/trafficserver/body_factory/default/access#redirect_url
/etc/trafficserver/body_factory/default/.body_factory_info
/etc/trafficserver/body_factory/default/urlrouting#no_mapping
/etc/trafficserver/body_factory/default/request#scheme_unsupported
/etc/trafficserver/body_factory/default/transcoding#unsupported
/etc/trafficserver/body_factory/default/request#cycle_detected
/etc/trafficserver/body_factory/default/congestion#retryAfter
/etc/trafficserver/body_factory/default/cache#not_in_cache
/etc/trafficserver/body_factory/default/cache#read_error
/etc/trafficserver/body_factory/default/connect#failed_connect
/etc/trafficserver/body_factory/default/interception#no_host
/etc/trafficserver/body_factory/default/response#bad_response
/etc/trafficserver/vaddrs.config
/etc/trafficserver/volume.config
/etc/trafficserver/cluster.config
/etc/trafficserver/icp.config
/etc/trafficserver/log_hosts.config
/etc/trafficserver/plugin.db
/etc/trafficserver/update.config
/etc/trafficserver/storage.config
/etc/trafficserver/remap.config
/etc/trafficserver/records.config
/etc/trafficserver/hosting.config
/etc/trafficserver/congestion.config
/etc/trafficserver/logs_xml.config
/etc/trafficserver/ssl_multicert.config
/etc/trafficserver/trafficserver-release
/etc/trafficserver/splitdns.config
/etc/trafficserver/stats.config.xml
/etc/trafficserver/plugin.config
/etc/trafficserver/parent.config
/etc/trafficserver/cache.config
/etc/trafficserver/ip_allow.config
/etc/trafficserver/mgr.cnf
/etc/trafficserver/socks.config
/etc/trafficserver/internal/
/etc/trafficserver/ae_ua.config
/etc/default/
/etc/default/trafficserver