From owner-freebsd-hackers@FreeBSD.ORG Fri Jun 27 12:46:45 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 95FBB37B401 for ; Fri, 27 Jun 2003 12:46:45 -0700 (PDT) Received: from adsl-64-161-78-226.dsl.lsan03.pacbell.net (adsl-64-161-78-226.dsl.lsan03.pacbell.net [64.161.78.226]) by mx1.FreeBSD.org (Postfix) with SMTP id D2EBC43FE0 for ; Fri, 27 Jun 2003 12:46:44 -0700 (PDT) (envelope-from oremanj@adsl-64-161-78-226.dsl.lsan03.pacbell.net) Received: (qmail 38850 invoked by uid 1001); 27 Jun 2003 19:49:29 -0000 Date: Fri, 27 Jun 2003 12:49:29 -0700 From: Joshua Oreman To: Josh Brooks Message-ID: <20030627194929.GA38801@webserver.get-linux.org> References: <20030627180818.GA37888@webserver.get-linux.org> <20030627122647.J57224-100000@mail.econolodgetulsa.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030627122647.J57224-100000@mail.econolodgetulsa.com> User-Agent: Mutt/1.4.1i cc: hackers@freebsd.org Subject: Re: setting up max ptys under 5.x X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Jun 2003 19:46:45 -0000 On Fri, Jun 27, 2003 at 12:29:41PM -0700 or thereabouts, Josh Brooks wrote: > > > On Fri, 27 Jun 2003, Joshua Oreman wrote: > > > > maxusers to 512 ... any new toggles I should know of to be able to use max > > > ptys on the system, or can I just follow whatever directions I hope to > > > receive regarding creating the devices ? > > > > 5.x creates the devices automatically. So if you have 256 users, you'll have 256 > > ptys. If you have 0 users, you'll have 0 ptys. maxusers has no effect, setting > > it to 512 does seem a bit high... > > Thank you - that is nice to know. I have a related question - does this > apply inside of jails as well ? I remember some testing on 4.x I was > doing with 16 jails, and even though I had 256 pty /dev nodes, if the /dev > inside the jail only had 32 of them (the default) then the jail users > would start getting denied logins and running out of ptys generally. > > This happened even tho the underlying fbsd system had all 256 ptys - the > only way to solve it was to create all 256 ptys in the /dev of _the jail_ > as well. > > How will this work in 5.x - will it be automatic for everyone, or should I > perhaps mount a devfs for each jail ?/? Devfs manages the ptys, so you will have to mount a devfs in the jail. I would suggest using devd to prevent the more "sensitive" devices from going in. Or just rm them. -- Josh > > thnks!