Merge pull request #225 from andreasstieger/netstat

2.17: correct netstat usage and filtering

Author: konstruktoid

tests/2_docker_daemon_configuration.sh

@@ -204,7 +204,7 @@ fi
 # 2.17
 check_2_17="2.17 - Bind swarm services to a specific host interface"
 if docker info 2>/dev/null | grep -e "Swarm:*\sactive\s*" >/dev/null 2>&1; then
-  netstat -lt | grep -e '\[::]:2377' -e '*:2377' -e '0.0.0.0:2377' >/dev/null 2>&1
+  netstat -lnt | grep -e '\[::]:2377 ' -e ':::2377' -e '*:2377 ' -e ' 0\.0\.0\.0:2377 ' >/dev/null 2>&1
   if [ $? -eq 1 ]; then
     pass "$check_2_17"
   else