OnWorks favicon

xr - Online in the Cloud

Run xr in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command xr that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



xr - Crossroads Load Balancer & Fail Over Utility


xr [--verbose] [--web-interface XRSERVER:PORT] --server tcp:XRSERVER:PORT --backend


This manual page briefly documents XR, the Crossroads Load Balancer & Fail Over Utility.

XR is an open source load balancer and fail over utility for TCP based services. It is a
dae mon running in user space, and features extensive configurability, polling of back
ends using wake up calls, status reporting, many algorithms to select the 'right' back end
for a reques t (and user-defined algorithms for very special cases), and much more.

XR is service-independent: it is usable for any TCP service, such as HTTP(S), SSH, SMTP,
dat abase connections. In the case of HTTP balancing, XR handles multiple host balancing,
and can provide session stickiness for back end processes that need sessions, but aren't
session-awa re of other back ends.

XR furthermore features a management web interface and can be run as a stand-alone daemon,
or via inetd.

Execute 'xr -h' to get a complete list of available command-line parameters.


xr --verbose --server tcp:0:80 --backend --backend --backend
10.1.1. 3:80 --web-interface 0:8001

This instructs XR to listen to port 80 and to dispatch traffic to the servers, and, port 80. A web interface for the balancer is started on port 8001.

Direct your browser to the server running XR. You will see the pages served by one of the
three back ends. The console where XR is started, will show what's going on (due to the
presence of --verbose).

Direct your browser to the server running XR, but port 8001. You will see the web
interface, which shows the status, and where you can alter some settings.

Use xr online using onworks.net services

Free Servers & Workstations

Download Windows & Linux apps

  • 1
    Sardi is a complete restyling and
    optimisation of svg code. 6 choices for
    your applications and 10 kind of folders
    to use in your file manager. The sardi
    Download Sardi
  • 2
    LMMS Digital Audio Workstation
    LMMS Digital Audio Workstation
    LMMS is a free cross-platform software
    which allows you to produce music with
    your computer. If you like this project
    consider getting involved in the project
    Download LMMS Digital Audio Workstation
  • 3
    FreeRTOS Real Time Kernel (RTOS)
    FreeRTOS Real Time Kernel (RTOS)
    FreeRTOS is a market-leading real-time
    operating system (RTOS) for
    microcontrollers and small
    microprocessors. Distributed freely
    under the MIT open source lice...
    Download FreeRTOS Real Time Kernel (RTOS)
  • 4
    Avogadro is an advanced molecular
    editor designed for cross-platform use
    in computational chemistry, molecular
    modeling, bioinformatics, materials
    science and ...
    Download Avogadro
  • 5
    XMLTV is a set of programs to process
    TV (tvguide) listings and help manage
    your TV viewing, storing listings in an
    XML-based format. There are utilities to
    Download XMLTV
  • 6
    Strikr Free Software project. Artifacts
    released under a 'intent based'
    dual license: AGPLv3 (community) and
    CC-BY-NC-ND 4.0 international
    Download strikr
  • More »

Linux commands