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The net-ping library provides a ping interface for Ruby. It includes separate TCP, HTTP, LDAP, ICMP, UDP, WMI (for Windows) and external ping classes.
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net-ping

A collection of classes that provide different ways to ping computers.

Prerequisites

  • ffi
  • win32-security (MS Windows only)
  • fakeweb (test only)
  • test-unit (test only)

Ruby users should use Ruby 1.9.3 or later. JRuby users should use JRuby 1.6.7 or later.

Installation

gem install net-ping

Notes

Please read the documentation under the 'doc' directory. Especially pay attention to the documentation pertaining to ECONNREFUSED and TCP pings.

Also note the documentation regarding down hosts.

How to require net-ping

You can do either this:

require 'net/ping'

In which case you will get Net::Ping and all of its subclasses. Or, you can load individual subclasses like this:

require 'net/ping/tcp'

The former has the advantage of being easier to remember and all inclusive, not to mention backwards compatible. The latter has the advantage of reducing your memory footprint.

Known Issues

Older versions of Ruby 1.9.x may not work with UDP pings.

Older versions of JRuby will return false positives in UDP pings because of an incorrect error class being raised. See JRuby-4896.

JRuby 1.6.7 or later is required for external pings because of a bug in earlier versions with open3 and stream handling.

ICMP pings will not work with JRuby without some sort of third-party library support for raw sockets in Java, such as RockSaw.

License

Artistic 2.0

Contributions

Although this library is free, please consider having your company set up a gittip if used by your company professionally.

http://www.gittip.com/djberg96/

More documentation

If you installed this library via Rubygems, you can view the inline documentation via ri or fire up 'gem server', and point your browser at http://localhost:8808.

Author

Daniel J. Berger