//////////////////////
//  REMOTE MACHINE  //
//////////////////////

1. Go to remote site directory (before public_html/):

2. Code:
    mkdir git && cd git
    git init --bare
    cd hooks
    nano post-receive

3. Code for post-receive

    #!/bin/sh
    git --work-tree=/home/sitename/public_html --git-dir=/home/sitename/git checkout -f

4. Save file and continue

5. chmod +x post-receive

//////////////////////
//  LOCAL MACHINE   //
//////////////////////

6. Go to local site directory and run the following
    git init
    git remote add origin ssh://sitename@84.45.18.210:10222/home/sitename/git
    
7. Add files, commit and push eg.
    git add -A
    git commit -m "First commit"
    git push origin master