diff --git a/README.md b/README.md
index 532e59ea4..1411387b5 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,15 @@ Currently, besides authorized DNS server of DNSPod, there are various products i
     make
     make install
 
+  If KNI is enabled in the configuration file, you should create a virtual NIC after F-Stack started, and set the ipaddr, netmask, mac addr, route table, etc. These addrs must be same with F-Stack.
+  
+  If you don't have another management port, you should execute a script like this.
+
+    ./start.sh -b /usr/local/nginx_fstack/sbin/nginx -c config.ini
+    sleep 10
+    ifconfig veth0 <ipaddr>  netmask <netmask>  broadcast <broadcast> hw ether <mac addr>
+    route add -net 0.0.0.0 gw <gateway> dev veth0
+    # route add -net ...  # other route rules
 
 ## Nginx Testing Result 
 
diff --git a/doc/Launch_F-Stack_on_AWS_EC2_in_one_minute.md b/doc/Launch_F-Stack_on_AWS_EC2_in_one_minute.md
index 4fc1b245a..b7bd5cbfe 100644
--- a/doc/Launch_F-Stack_on_AWS_EC2_in_one_minute.md
+++ b/doc/Launch_F-Stack_on_AWS_EC2_in_one_minute.md
@@ -58,7 +58,7 @@
     make
 
     # Compile Nginx
-    cd ../app/nginx-1.11.10
+    cd ../app/nginx-1.11.10
     ./configure --prefix=/usr/local/nginx_fstack --with-ff_module
     make
     make install