ti@D8LXQt:~$ sudo /usr/sbin/connmand -n
/usr/sbin/connmand: error while loading shared libraries: libxtables.so.11: cannot open shared object file: No such file or directory
ti@D8LXQt:~$ cd /usr/lib/x86_64-linux-gnu ; ls -la libxtables*
lrwxrwxrwx 1 root root    20 Nov 17 11:46 libxtables.so.12 -> libxtables.so.12.0.0
-rw-r--r-- 1 root root 52088 Nov 17 11:46 libxtables.so.12.0.0