Here you go: https://twitter.com/qwertyoruiopz/status/825911137954885632
Basically go to /Library/LaunchDaemons and you'll find an already existing dropbear.plist. Create a copy of this and name it 'dropbear2.plist' and edit the string from '127.0.0.1:22' to just '22'.
Now open Terminal as root on your iOS and cd to /Library/LaunchDaemons and then type: 'launchctl unload dropbear.plist' and again type 'launchctl load dropbear2.plist'.
This tutorial would allow you to SSH over WiFi only if you really have to:
Disclaimer and Warning: As I respect what Luca has done to secure SSH using Dropbear and only allow it via Localhost / USB, I would strongly suggest you all to only SSH over WiFi only if you really have to.
Method 1 - Recommended The way Luca suggested to run this:https://www.reddit.com/r/jailbreak/comments/5s19qg/tutorial_ssh_over_wifi_with_yalu102_jb/ddcm867/
Method 2 - Steps you'd need to follow:
1) Install Filza File manager and navigate to: /private/var/containers/Bundle/Application/yalu102/yalu102.app
2) Edit dropbear.plist (Press hold on it > click more> click open with > click Text Editor)
3) Replace <string>127.0.0.1:22<string> with <string>22</string>
4) Power off phone and rejailbreak. You should now be able to connect to your phone's WiFi IP address (local IP address) on port 22 via Putty or your favorite SSH client on your PC that is on the same local network.
Note: I only did this because I wasn't able to connect over USB using iTunnel on PC cause of my iTunes issue. I was however able to later be able to use USB tunnel to connect over USB with iFunbox.
Edit: I attempted to create another dropbear.plist as a LaunchDaemon but it didn't work out for me. If someone was successful in doing do, kindly share.
Edit 2: IMPORTANT: Please ensure that you change the default SSH password, if not done anyone over your local WiFi network or possibly external network (if your router isn't secure) will be able to SSH into your phone and login with the default username and password. :
Open terminal and type: 'su root' type password as : 'alpine' type this to change password: 'passwd' input your new strong password and retype it to confirm. Exit ssh session and relogin with new password to confirm that it's changed.