/usr/share/doc/mrtg/examples/mrtgmk/ is in mrtg-contrib 2.17.4-4.1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/mrtg/examples/mrtgmk/cfg/
/usr/share/doc/mrtg/examples/mrtgmk/cfg/192.168.10.1.cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/EXAMPLE1
/usr/share/doc/mrtg/examples/mrtgmk/cfg/a.cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/alias.cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/convert.cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/hosts.cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/links.cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/misc.cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/mrtg.cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/mrtg_cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/page1.cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/page1.html
/usr/share/doc/mrtg/examples/mrtgmk/cfg/page2.cfg
/usr/share/doc/mrtg/examples/mrtgmk/cfg/page2.html
/usr/share/doc/mrtg/examples/mrtgmk/cfg/today.html
/usr/share/doc/mrtg/examples/mrtgmk/doc/
/usr/share/doc/mrtg/examples/mrtgmk/doc/commands
/usr/share/doc/mrtg/examples/mrtgmk/doc/readme.1st
/usr/share/doc/mrtg/examples/mrtgmk/readme.1st
/usr/share/doc/mrtg/examples/mrtgmk/smrtgmk
/usr/share/doc/mrtg/examples/mrtgmk/src/
/usr/share/doc/mrtg/examples/mrtgmk/src/alias.c
/usr/share/doc/mrtg/examples/mrtgmk/src/defhost.c
/usr/share/doc/mrtg/examples/mrtgmk/src/fnct0.c
/usr/share/doc/mrtg/examples/mrtgmk/src/fnctn.c
/usr/share/doc/mrtg/examples/mrtgmk/src/gif.c
/usr/share/doc/mrtg/examples/mrtgmk/src/html.c
/usr/share/doc/mrtg/examples/mrtgmk/src/mkm
/usr/share/doc/mrtg/examples/mrtgmk/src/mrtgmk.c
/usr/share/doc/mrtg/examples/mrtgmk/src/parse.c
/usr/share/doc/mrtg/examples/mrtgmk/src/parse.ftbl
/usr/share/doc/mrtg/examples/mrtgmk/src/parse0.c
/usr/share/doc/mrtg/examples/mrtgmk/src/parse0.ftbl
/usr/share/doc/mrtg/examples/mrtgmk/src/parsen.c
/usr/share/doc/mrtg/examples/mrtgmk/src/parsen.ftbl
/usr/share/doc/mrtg/examples/mrtgmk/src/txte.h
/usr/share/doc/mrtg/examples/mrtgmk/src/txtro.h
/usr/share/doc/mrtg/examples/mrtgmk/src/util.c
/usr/share/doc/mrtg/examples/mrtgmk/src/vars.h