
/proc/net/ip_conntrack was finally removed from linux 4.9 onwards, instead we should use /proc/net/nf_conntrack (see commit message at https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=adf0516845bcd0e626323c858ece28ee58c74455) Signed-off-by: Chris Glass <chris.glass@canonical.com>