diff --git a/test/lib.sh b/test/lib.sh
index 436e4313..9b7f8308 100755
--- a/test/lib.sh
+++ b/test/lib.sh
@@ -43,16 +43,19 @@ fi
 
 # Sanity nginx running on systemd platforms
 if systemctl > /dev/null 2>&1 ; then
+    # even if systemd exists, nginx may be started in other ways
     nginxactive=$(systemctl show nginx |grep ActiveState=active)
     if [ "${WITH_RESTCONF}" = "fcgi" ]; then
-	if [ -z "$nginxactive" ]; then
-	    echo -e "\e[31m\nwith-restconf=fcgi set but nginx not running, start with systemctl start nginx"
+	if [ -z "$nginxactive"  -a ! -f /var/run/nginx.pid ]; then
+	    echo -e "\e[31m\nwith-restconf=fcgi set but nginx not running, start with:"
+	    echo "systemctl start nginx"
 	    echo -e "\e[0m"
 	    exit -1
 	fi
     else
-	if [ -n "$nginxactive" ]; then
-	    echo -e "\e[31m\nwith-restconf=fcgi not set but nginx running, stop with systemctl stop nginx"
+	if [ -n "$nginxactive" -o -f /var/run/nginx.pid ]; then
+	    echo -e "\e[31m\nwith-restconf=fcgi not set but nginx running, stop with:"
+	    echo "systemctl stop nginx"
 	    echo -e "\e[0m"
 	    exit -1
 	fi
diff --git a/test/test_yang_namespace.sh b/test/test_yang_namespace.sh
index 83033a11..38d7891b 100755
--- a/test/test_yang_namespace.sh
+++ b/test/test_yang_namespace.sh
@@ -68,15 +68,11 @@ if [ $BE -ne 0 ]; then
     fi
 
     new "start backend -s init -f $cfg"
-    # start new backend
-    sudo $clixon_backend -s init -f $cfg -D $DBG
-    if [ $? -ne 0 ]; then
-	err
-    fi
-fi
+    start_backend -s init -f $cfg
 
-new "waiting"
-wait_backend
+    new "waiting"
+    wait_backend
+fi
 
 if [ $RC -ne 0 ]; then
     new "kill old restconf daemon"
diff --git a/test/vagrant/nginx.sh b/test/vagrant/nginx.sh
index 119970d2..0a9dad77 100755
--- a/test/vagrant/nginx.sh
+++ b/test/vagrant/nginx.sh
@@ -67,6 +67,7 @@ http {
 }
 EOF
 $scpcmd $dir/nginx.conf vagrant@127.0.0.1:
+# This is problematic since it does not use systemctl (lib.sh check does)
 cat<<'EOF' > $dir/startnginx.sh
     #!/usr/bin/env bash
     set -x
@@ -83,7 +84,9 @@ cat<<'EOF' > $dir/startnginx.sh
    	  sudo sh -c ' echo 'nginx_enable="YES"' >> /etc/rc.conf'
         fi		
         sudo /usr/local/etc/rc.d/nginx restart
-    else
+    elif systemctl > /dev/null 2>&1 ; then
+       sudo systemctl start nginx
+    else	 
 	sudo pkill nginx
         nginxbin=$(sudo which nginx)
 	sudo $nginxbin -c $prefix/etc/nginx/nginx.conf
diff --git a/test/vagrant/vagrant.sh b/test/vagrant/vagrant.sh
index 080d8168..eb11ca74 100755
--- a/test/vagrant/vagrant.sh
+++ b/test/vagrant/vagrant.sh
@@ -18,6 +18,7 @@ box=$1 # As defined in https://vagrantcloud.com/search
 
 #with_restconf=fcgi
 : ${with_restconf:=evhtp}
+echo "with-restconf:${with_restconf}"
 
 VCPUS=1
 MEM=1024
@@ -135,6 +136,8 @@ case $release in
 	esac
 	;;
     centos)
+        # enable ipv6
+        sudo sysctl -w net.ipv6.conf.all.disable_ipv6=0
 	# add restconf user: $wwwuser
 	if [ ! $($sshcmd id -u $wwwuser) ]; then
 	    $sshcmd sudo useradd -M $wwwuser