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Newsgroups: comp.unix.bsd.freebsd.misc Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.rmit.EDU.AU!news.unimelb.EDU.AU!munnari.OZ.AU!news.ecn.uoknor.edu!feed1.news.erols.com!howland.erols.net!math.ohio-state.edu!jussieu.fr!fdn.fr!r2d2.fdn.org!sphynx.fdn.fr!caussep From: caussep@sphynx.fdn.fr (Philippe CAUSSE) Subject: Re: How many ttys? X-Newsreader: TIN [version 1.2 PL2] Organization: individual - paris - france Message-ID: <E7MFE8.yr@sphynx.fdn.fr> References: <333486D0.4A38@www.mxl.cetys.mx> Date: Tue, 25 Mar 1997 22:49:19 GMT Lines: 46 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:37750 Hector Lecuanda Ontiveros (lecuanda@www.mxl.cetys.mx) wrote: : Greetings.!! : : I''ve been using FreeBSD for quite some time now, but i have this : question about R2.2 : I'm planning on migrating a DOC BBS to FreeBSD 2.2, BUT, the primary : concern here is the number of tty's it can handle. : : 2.1 which is the Release i'm currentry using, supports only 64 ptys... : could somebody tell me what is the maximum number of tty's supported : by R2.2 Is it still 64? :~( : : if that's the case, i'll have to use Linux RedHat.. :( (linux sux) but : it DOES support 128 ttys... : : So.. Looks like you're confusing ttys and ptys ! The number of ttys mainly depends on the physically connected (attached) devices, which translates to "how many asynchronous serial ports you have". The number of ptys is a different matter, they are used for networking stuff (xterm, rlogin, telnet), the latter being configurable in the kernel. For the pty (pseudo-tty) stuff, it can go as high as 256 (linux beaten ;-) ) Below is an excerpt of the `LINT' kernel description: LINT:pseudo-device pty 16 #Pseudo ttys - can go as high as 256 Remember: a serial line access does not consume any pty/ttyp pair ! Cheers, Philippe. : : ==================================================================== : Hector Lecuanda : Cetys Universidad : Informatica Mexicali : : http://orca.ens.cetys.mx/hlecuanda -- ------------------------------------------------------------------- P. Causse http://www.fdn.fr/~pcausse 4.4BSD/X11R6/Motif-2.0/C++ mailto:caussep@sphynx.fdn.fr (UUCP)