Q-shell is quick shell for remote login into Unix system, it use blowfish crypt algorithm to protect transport data from client to server, you can get two program: ‘qsh’ for client, and ‘qshd’ for server, those program can rename by any name with you prefer.
To Compile Q-shell:
Just enter ‘make’ and it will automation to compile, but, you must input the server key.
Usage:
1. For Server, Just run qshd on server:

$ ./qshd

But, you would like to run after change it to other name, such as:

$ mv qshd smbd
$ export PATH=.:$PATH
$ smbd

2. For client, Set some environment variable, then run qsh:

$ export _IP=127.0.0.1
$ export _PORT=2800
$ unset _P
$ ./qsh shell

Now you already login into server $_IP .
More function:
q-shell include more function to manage system:
1. put/get files:

$ ./qsh get /path/to/server/file .
$ ./qsh put /path/to/local/file  /path/to/server/file

2. Run a command on server:

$ ./qsh exec 'ls -l /bin'

3. Update server program, This function will update remote qshd, and run again:

$ ./qsh update /path/to/local/qshd

4. Automation to run command on many server, Note: qsh use $_P to fetch server key, so you should erase all history data after to use $_P:

$ for i in {10..20} ; do \
      export _IP=192.168.0.$i
      export _PORT=2800
      export _P=key   # set key
      ./qsh exec 'ls -l /bin'
  done

5. Update password, start with version 3.2, you can update the password as below:

$ ./qsh passwd

6. Download q-shell at Github Repo: https://github.com/qianshanhai/q-shell