gitolite

apt-get install git    ### on  remote server
apt-get install gitolite   ### on git/gitolite server
sudo adduser --system --group --shell /bin/bash --disabled-password git  ### on git/gitolite server

sudo adduser --system --group --shell /bin/bash --disabled-password john   ### on remote server,
### on remote host as any user ,  generate keys , say for user john
ssh-keygen -t rsa     ###  copy public keys to git/gitolite server /tmp/john.pub

### now on git/gitolite  server  ,  execute  command , gl-setup /tmp/john.pub  ,with  john's public key
sudo su - git
git@network:~$ gl-setup /tmp/john.pub    ### on git,gitolite server
The default settings in the rc file (/home/git/.gitolite.rc) are fine for most
people but if you wish to make any changes, you can do so now.

hit enter...                           ### press enter

Select an editor.  To change later, run 'select-editor'.
  1. /bin/ed
  2. /bin/nano        <---- easiest
  3. /usr/bin/vim.basic                                ###select editor  & save file conf/gitolite.conf
  4. /usr/bin/vim.tiny

Choose 1-4 [2]: 3
creating gitolite-admin...
Initialized empty Git repository in /home/git/repositories/gitolite-admin.git/
creating testing...
Initialized empty Git repository in /home/git/repositories/testing.git/
[master (root-commit) 264d4bc] start
 2 files changed, 6 insertions(+)
 create mode 100644 conf/gitolite.conf
 create mode 100644 keydir/john.pub


### for user john on remote server , 
su - john
git clone git@10.0.0.36:gitolite-admin   ###this will clone  gitolite-admin, now you can modify/update & push to git server


####now  say a user terry exists on a remote server with public key /home/terry/.ssh/id_rsa.pub 
#### on git server , in file  /home/git/.ssh/authorized_keys, add remote user terry's  keys in below way
so the correct way is to append   below line  in file  /home/git/.ssh/authorized_keys , for all users on git/gitolite server
command="/usr/share/gitolite/gl-auth-command git-admin",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty

example

command="/usr/share/gitolite/gl-auth-command john",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQD3jxVhugaP5FY89GR0yBZEwDz4kxZKdarg5q1AIPdc8Cr0Fpu+894aErQMYhMmJ+IRrN0Ns3Jv9uJeWzdzLFNX+3Z9fq+Y9ZbeCVC3z5R6lfhmwYmDbfSnBuZ/8hd3gBGaoTu1X8Mtba627g2hL764ScHMHe7HsPf7XhpUz2gp6i6e5sTpspyjbsJDGGAD9lZbbmU7/f6VeFX/RIpdRE00v3xo/DTKZwqBAONE28PwJbiRlDkVlP0fWGnZffm7Zd39dmw0QTCEViByxmcuiCMXyvtbHQs4MX6eXikb/yew6GMWwg8U3oPjOONieq6RKmzbc4rei/+UPRinul6vhkal terry@anshu
# gitolite start
command="/usr/share/gitolite/gl-auth-command john",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDmTVYH691ikZQg4KP9MmFJswNTBUzrvOketui9SVY9Ej0CoPR4kzbE+mvM84CN70Eh+bYYSAScPl/mc8k5oPkrY0QTi7y0jzhM634IePfHyx7e2v/KTh+e4rh+OZmZTDcHiJUoJer8HjR+/4VM5qvkuG8Vcinw8BoDTVTepB7+chfKOsjXFu9SbbkJpJTUYeZL/mpEVUvrB5txMGpflOLdz3cx8E1ZMAypg6cO3ZT4BrZ9q1CmnlruM2lScrEGAv35cdnc1zEi5EZ9OBkgGG/woXn+Rw8AIU/oC2iPsnx1cXkT4TtowMRpj4wG2Ys9xZ4OU4fa7uNlvXzuIHMkEZWx john@anshu
# gitolite end

##After terry's appending key in git/gitolite server,clone  gitolite repository,as user terry

git clone git@10.0.0.36:gitolite-admin


cd   /home/terry/gitolite-admin

update file conf/gitolite.conf
### add a  repo & user diffenert from admin user  john , as below
repo    test
        RW+     =   terry


git config --global user.email "terry@ril.com"
git config --global user.name "terry"
git commit -a -m "adding repo test"  ## in dir  /home/terry/gitolite-admin

git push