Projects / Spinner


Spinner is useful for keeping telnet and ssh links from dropping due to inactivity. Many firewalls and some ISPs drop connections when they are perceived as idle. By having spinner running, the server is constantly sent a tiny amount of data over the link, preserving the connection. Spinner thus acts as a keep-alive. It displays a little "spinning" ASCII character in the top left corner of your terminal. It supports any terminal capable of handling VT100-style escape codes. Spinner can also function transparently by only sending null characters to the terminal. In this mode Spinner supports any terminal. It also has a mode called "Ghost in the Machine" in which you can use Spinner to write the spinner character to any TTY, not just your own.

Operating Systems

Recent releases

  •  18 Feb 2003 17:38

    Release Notes: The bug has been fixed that caused Spinner not to terminate upon logout from sshd under Linux.

    •  31 Jan 2003 17:40

      Release Notes: Although the -n switch worked correctly, it was not included in the docs or the output of spinner -h. This has been fixed. Minor tweaks have been made to aid in compilation. Minor code cleanups have been done.

      •  28 Jan 2003 17:19

        Release Notes: This release adds the ability to send only null characters to the terminal, instead of a spinner. This provides the anti-idle functionality without any display issues. Display bugs have been fixed. The code has been cleaned.

        •  16 Nov 2002 02:19

          No changes have been submitted for this release.


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