Remote Desktop

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Intro

Based on services by Openwrt routers and pubyun, Windows NT 10.0.

Wrote this when found Openwrt can't update a private ip like 172.19.18.222 to 3322 ddns, while resolving domain names to ips is in fact useful, for what we stay in is just a big "LAN".

This method is tested in campus network(GZHU), but suitable for any DHCP network.

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Local

Windows 10 Server / Enterprise

Skip this step.

Windows 10 Home

Windows 10 Home doesn't support remote desktop by default, but you can make it available by installing RDP Wrap.

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Router

If you still don't have a dynamic domain by pubyun, go to pubyun and get one for free.

Script

Do the following steps on Openwrt via ssh or other tools like Putty.

Install curl

opkg update
opkg install curl

Setup script

(Assume that you have owned a domain name like ark1099.f3322.net)

cd /etc
vim ddnsscript.sh

Copy codes from ddnsscript.sh in this repository.

Modify three places in angle bracket <>:

<your_domain_name> : domain name you acquire on pubyun, example: xxxx.f3322.net

<your_update_code> : update code from domain name settings

<your_wan_interface> : probably be 'wan' or 'eth0.2'. type ifconfig to check what ip to be sent.

Then :wq and ./ddnsscript.sh to run once.

(Optional) Or you can first git it on Windows:

git clone https://github.com/RH-Xie/Remote-Desktop.git

Copy ddnsscript.sh to /etc on your Openwrt router via tools like WinSCP. vim or vi to modify your ddnsscript.sh.

CRON (schedual tasks)

If you have successfully updated your ip to pubyun, then setup schedual task on Openwrt.

*/20 * * * * /etc/ddnsscript.sh

Port forwarding

Setup port forwarding in firewall with inner port 3389.