-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 This e-mail is to announce a new Sugar Activity: ShareTerm. ShareTerm is a variant of Terminal designed to enable collaborative work at the command prompt.
How To Use It: 1. Install the bundle from: http://dev.laptop.org/~bemasc/ShareTerm-1.xo 2. Install GNU Screen on your system. MANDATORY. NOTE: GNU Screen is not installed by default on many Sugar systems, including OLPC's XO distributions. 3. Make sure you are running with Rainbow enabled! 4. Start ShareTerm from the Sugar UI, and then share it like any collaborative Activity How It Works: ShareTerm works by starting an unprivileged SSH daemon and a GNU Screen session. The SSH daemon is tunneled over a Telepathy Stream Tube. To avoid the need for passwords, public-key authentication is used. The system should support an arbitrary number of participants, though at the moment the sshd is configured with a maximum of 10. Why Use It: I hope that ShareTerm will be useful for teaching UNIX and programming skills to novices. For experts, the window management of Screen will be especially useful. How To Help: ShareTerm needs: Testing! A better icon? A better name? Advice on using Sugarlabs infrastructure! - for translations and code Help with programming! Warnings: ShareTerm allows other users to type at your command prompt. ShareTerm will never have an "arbitrary code execution" exploit, because that is a feature (indeed, the only feature). Therefore, you should always run ShareTerm appropriately compartmentalized from your sensitive data. If the Rainbow security system is operating, ShareTerm will operate entirely inside a Rainbow container, providing a significant degree of security. ShareTerm requires GNU Screen. A future bundle for ShareTerm could include a statically linked Screen binary, but for now you must install screen yourself (e.g. yum install screen) in order for the system to function. Known Bugs: ShareTerm is using sshd and screen far outside of their normal operating parameters, so the system is quite fragile. Only minimal effort has been made to handle failure cases gracefully. Although the system appears to be operating properly, and free of races, the internals are hack after hack after hack. I am not very knowledgeable about sshd, screen, sockets, or related issues, so all assistance is welcome. The only known bug at this time is that closing a ShareTerm session leaves behind a unkillable "zombie" process. I have no idea why. - --Ben P.S. ShareTerm:MPXVNC::Adventure::DOOM  http://blog.printf.net/articles/2009/01/26/multi-pointer-remote-desktop  http://en.wikipedia.org/wiki/Adventure_(computer_game) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.10 (GNU/Linux) iEYEARECAAYFAkn95LoACgkQUJT6e6HFtqST5QCeLnR1REuFiUT2V8dxKdW6gFDI qxoAnit+ch9qTpVibKLh8GSiNYSrOe0S =YFP1 -----END PGP SIGNATURE----- _______________________________________________ Sugar-devel mailing list Sugaremail@example.com http://lists.sugarlabs.org/listinfo/sugar-devel