[TUHS] X.25 stacks on Unix

[Kevin Bowling]

On Wed, Jun 11, 2025 at 7:46 PM Rudi J. Blom <rudi.j.blom at gmail.com> wrote:
>
>
> Greg,
>
> a long time a go while still working for Computer Division of Philips Electronics I used X.25 and X.21 extensively on various proprietary O.S.-es. X.25/X.21 (or PSDN/CSDN) was used for Teletex (CCITT T series, TTX, better than telex but lost to FAX which was easier, cheaper and legally acceptable).
>
> I still have some dedicated boards which Philips used for X.25, X.21 and SDLC. At a customer side in a test environment with SCO UNIX 3.2V4.2 SDLC links are still used, X.25 was phased out a few years ago. Same with DEC Tru64, a multi-port SYNC-2000 with appropriate DEC software could support both X.25 and SDLC. AlphaServer DS25 with SDLC links still in production.
>
> I still have all the applicable software for SCO UNIX and DEC Tru64.

Consider uploading to archive.org or somewhere.

I've uploaded the SunLink stack here http://iommu.com/sun/sunlink-x.25-8.0.2.iso

There is a hobby x.25 network at https://x25.org/

> Cheers,
> uncle rubl


> --
> The more I learn the better I understand I know nothing.
> 24 x 7 is not enough but my request for 25 x 8 is still under consideration.
> 24 x 7 is not enough but my request for 25 x 8 is still under consideration
> 24 x 7 is not enough but my request for 25 x 8 is still under consideration
> 24 x 7 is not enough but my request for 25 x 8 is still under consideration
>