diff --git a/README.md b/README.md
index 8a8286e..5047ff1 100644
--- a/README.md
+++ b/README.md
@@ -2,13 +2,17 @@
 
 This is a repo that contains tools/documentations to help nfs mounting configuration in Synology
 
-## How to config Synology for NFS
+## Note
+
+Due to issue from idmapping, NFS customization on Synology is given up. I will directly use Synology's official NAS setting in WebGUI. And set all visitor either as admin or guest
+
+## 0. Knowledge Center:  How to config NFS server and client
 
 Synology's DSM WebGUI has capability to set NFS configuration to allow Linux to access files on Synology NAS, follow [tutorial: How to access files on Synology NAS within the local network (NFS)](https://www.synology.com/en-us/knowledgebase/DSM/tutorial/File_Sharing/How_to_access_files_on_Synology_NAS_within_the_local_network_NFS)
 
 But the GUI's feature is limited. We need more fine tuning. Following [NFS: Overview and Gotchas](http://www.troubleshooters.com/linux/nfs.htm), we can set Synology properly. (If the URL is broken, we can refer to [NFS: Overview and Gotchas in repo](/source/NFS_Overview/NFS\ Overview\ and\ Gotchas.htm)
 
-### Summary of how to configure NFS server
+### 0.1 Summary of how to configure NFS server
 
 Configuring an NFS server is just placing a line in `/etc/exports` file. The line's general syntax is:
 
@@ -39,21 +43,48 @@ where:
 * `anonuid=1025` is uid of "guest"
 * `anongid=100` is gid of "guest/user"
 
-### Summary of how to configure client
+### 0.2 Summary of how to configure client
 
 ```
 mount -t nfs -o rw 192.168.100.85:/data/altamonte /mnt/test
 ```
 
-## Current solution
+## 1. Current solution for mapping Synology NFS to Ubuntu (desktop or laptop)
 
-Due to limitation of NFS4.0, idmapping is too hard (mismatch between server and client's uid/gid), and kerberos authentication is too hard to setup. The only solution is NFS+`chown`
+Due to limitation of NFS4.0, idmapping is too hard (mismatch between server and client's uid/gid) to configure at server side, and kerberos authentication is too hard to setup. 
 
-1. Setup NFS permission of shared folder on Synology
+This [youtube video](https://www.youtube.com/watch?v=mroM6_koNdw) is the best explanation for me.
+
+The only solution for ubuntu (Desktop or Laptop) is NFS+`chown`
+
+1. Follow Synology official guide + youtube to set NFS permission
 2. mount volume to client
-3. When writing files, remember to chown afterward
+3. After writing files, remember to chown afterward
+
+For plex server:
+
+1. Follow Synology official guide + youtube to set NFS permission
+   1. add ip address of Proxmox only, no need to add ip address of the LXC within it)
+   2. Choose squash as "map all user to admin"
+2. Mount NFS to Proxmox by go to Datacenter->Storage->Add->NFS, choose different content types.
+3. Modify LXC config file after creation of LXC to add mounting point
+   1. Following [Bind Mount Points](https://pve.proxmox.com/wiki/Linux_Container#_bind_mount_points) to setup bind mount point in config file (in `/etc/pve/lxc`)
+
+e.g. 102.conf
+
+```
+arch: amd64
+cores: 2
+hostname: plexserver
+memory: 1024
+mp0: /mnt/pve/NAS_media,mp=/mnt/nas_media
+net0: name=eth0,bridge=vmbr0,firewall=1,hwaddr=F6:7A:13:86:C5:FD,ip=dhcp,ip6=dhcp,type=veth
+ostype: ubuntu
+rootfs: local-lvm:vm-102-disk-0,size=8G
+swap: 512
+unprivileged: 1
+```
 
-For plex server, I need to align LXC's uid and gid with Synology
 
 ## Reference