/etc/ is in squid-deb-proxy 0.8.14.
This file is owned by root:root, with mode 0o755.
..
/etc/logrotate.d/
/etc/logrotate.d/squid-deb-proxy
/etc/resolvconf/
/etc/resolvconf/update-libc.d/
/etc/resolvconf/update-libc.d/squid-deb-proxy
/etc/squid-deb-proxy/
/etc/squid-deb-proxy/autogenerated/
/etc/squid-deb-proxy/autogenerated/README.autogenerated
/etc/squid-deb-proxy/allowed-networks-src.acl.d/
/etc/squid-deb-proxy/allowed-networks-src.acl
/etc/squid-deb-proxy/squid-deb-proxy.conf
/etc/squid-deb-proxy/pkg-blacklist.d/
/etc/squid-deb-proxy/mirror-dstdomain.acl
/etc/squid-deb-proxy/mirror-dstdomain.acl.d/
/etc/init.d/
/etc/init.d/squid-deb-proxy
/etc/init/
/etc/init/squid-deb-proxy.conf