Enable Screen Sharing from command line

Question

I inadvertently removed screen sharing from my mac mini server firewall but I can still ssh into it. How can I enable either screen sharing or remote management via ARD?
Thanks so much,
J.

Answer 1

Sorry for the imperfect instructions, I was doing it from memory.
First, set up secure ssh credentials by doing the public/private RSA key exchange.
Based on someone else's suggestion I found on the web, I created an "alias" command in my .tcshrc file. I just launch a terminal session and use my alias I've created, followed by my ssh credentials on the remote machine, and the alias/script does the rest.
Begin fragmment from my .tcshrc....
echo " myvnc ACCOUNTNAME = connect to ACCOUNTNAME via VNC"
alias myvnc 'ssh -f -L 1202:localhost:5900 \!:1 sleep 10 ; open vnc://localhost:1202'
... End fragment.
So when I want to vnc I just type
$ myvnc [email protected]
In fact, after a while, I got tired of reading all the server logs of people trying to hack my server over port 22 (ssh standard port). Once you have the alias command above working for you, you can pick a different port on your server's firewall, and forward it to port 22 inside the firewall. That way, hackers that scan your port 22 won't get any response.
Once you do this, you can revise the alias in your .tcshrc to also include the "-p" ssh argument, so hep save you the trouble of remembering the ssh port you have moved your server conversation to. For example, it you decided to close port 22 at the firewall, and forward port 2222 (just an arbitrary number I picked) to your server's port 22 inside the fire wall, your alias line would look like this...
alias myvnc 'ssh -p 2222 -f -L 1202:localhost:5900 \!:1 sleep 10 ; open vnc://localhost:1202'