From owner-freebsd-hardware@FreeBSD.ORG Tue Jan 12 15:44:29 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 81945106568D for ; Tue, 12 Jan 2010 15:44:29 +0000 (UTC) (envelope-from dnaeon@gmail.com) Received: from mail-fx0-f227.google.com (mail-fx0-f227.google.com [209.85.220.227]) by mx1.freebsd.org (Postfix) with ESMTP id 018568FC08 for ; Tue, 12 Jan 2010 15:44:28 +0000 (UTC) Received: by fxm27 with SMTP id 27so357196fxm.3 for ; Tue, 12 Jan 2010 07:44:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:cc:content-type; bh=qkY7WZT2w89p/J4OyG4ak4+CXR9FhGQf8vflrovuloo=; b=aTM62ZGQR0gDqOtCYNDLdzP9uBgNQI7O9eGkLB9E0T2r3e/6VDAnkK1/EVpdz/H48P p0ozN2zNmnIBq0Fcibr4HnOlZ7wshHXwbgLCVplh0hamNMLjjnZWhkpSRBR7OJoWxn6S tcHxDzNlf4J5F1Yl1HgqD9VUGQXXgTga1D/6w= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:cc:content-type; b=IsgWyQyZS0FHrAEiGY3mHfLbfvUEzhul/F2y50rw0xEo75szRNI9IybV2KVBfKyZM4 5hO2wExNQ2WUeCr6j/IuPiDbLnglj3f8g/d18l/Sx5MeCFvFZrNVrAjU81nv8zwfD17q ZpLmVStUWS1m1r7tCb/ZG0K9wXqjOi1VZiDQI= MIME-Version: 1.0 Received: by 10.223.53.149 with SMTP id m21mr9450373fag.101.1263309284112; Tue, 12 Jan 2010 07:14:44 -0800 (PST) Date: Tue, 12 Jan 2010 17:14:44 +0200 Message-ID: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> From: Marin Atanasov To: freebsd-hardware@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-stable@freebsd.org Subject: Multiple serial consoles via null modem cable X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jan 2010 15:44:29 -0000 Hello there, I'd like to ask you about the following - is it possible to have multiple serial consoles coming from a single host? What I am talking about is connecting multiple machines using a null modem cable - I know it is possible only to connect two machines and they need to be connected on sio0 (COM1). I'm thinking about the following situation - 1 system acting like a host with a serial port hub, each port of the hub is connected to a different machine on sio0, using null modem cables. This would make the first machine something like a cheaper kind of a terminal concentrator :) What do you think, have someone tried this and is it possible at all? Thanks and regards, DNAeon From owner-freebsd-hardware@FreeBSD.ORG Tue Jan 12 16:05:02 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D6F3D106570C for ; Tue, 12 Jan 2010 16:05:02 +0000 (UTC) (envelope-from olivier@gautherot.net) Received: from mail-px0-f182.google.com (mail-px0-f182.google.com [209.85.216.182]) by mx1.freebsd.org (Postfix) with ESMTP id B61238FC16 for ; Tue, 12 Jan 2010 16:05:02 +0000 (UTC) Received: by pxi12 with SMTP id 12so15384564pxi.3 for ; Tue, 12 Jan 2010 08:04:57 -0800 (PST) MIME-Version: 1.0 Received: by 10.142.119.7 with SMTP id r7mr5876485wfc.261.1263312297252; Tue, 12 Jan 2010 08:04:57 -0800 (PST) In-Reply-To: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> References: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> From: Olivier Gautherot Date: Tue, 12 Jan 2010 13:04:37 -0300 Message-ID: To: Marin Atanasov Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-stable@freebsd.org, freebsd-hardware@freebsd.org Subject: Re: Multiple serial consoles via null modem cable X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jan 2010 16:05:02 -0000 Hi Marin, I'd like to ask you about the following - is it possible to have multiple > serial consoles coming from a single host? > In theory, no :-) RS232 is a point-to-point connection. If you want to feed several consoles through the same serial port, you will need some kind of switch to route the traffic to the corresponding port (whether the cable needs to be null modem or not wil depend on the switch itself). What I am talking about is connecting multiple machines using a null modem > cable - I know it is possible only to connect two machines and they need to > be connected on sio0 (COM1). > > I'm thinking about the following situation - 1 system acting like a host > with a serial port hub, each port of the hub is connected to a different > machine on sio0, using null modem cables. > > This would make the first machine something like a cheaper kind of a > terminal concentrator :) > The options that come up to my mind are: - a mechanical switch but it would not allow seamless routing (requires operator action to change channel) - a software switch using ESCAPE codes to change channel through an ad-hoc device driver - but there, make sure you don't miss bytes or the traffic may end up on the wrong terminal - if you fancy a home design, you could use the parallel port to send an address word but you will have to design your own seial port emulation on top of the standard sio0 to synchronize the signals... I would not bet too much on this one ;-) Also, evaluate if you need priority management: you may get to a situation where you need to send urgently characters to a terminal while another one has a long queue pending. In this case, you may be better off with Ethernet-to-Serial or USB-to-Serial converters. Hope it helps Cheers -- Olivier Gautherot olivier@gautherot.net Cel:+56 98 730 9361 www.gautherot.net http://www.linkedin.com/in/ogautherot From owner-freebsd-hardware@FreeBSD.ORG Tue Jan 12 17:32:25 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A95C01065679 for ; Tue, 12 Jan 2010 17:32:25 +0000 (UTC) (envelope-from bsam@ipt.ru) Received: from services.ipt.ru (services.ipt.ru [194.62.233.110]) by mx1.freebsd.org (Postfix) with ESMTP id 66C968FC1A for ; Tue, 12 Jan 2010 17:32:25 +0000 (UTC) Received: from bb.ipt.ru ([194.62.233.89]) by services.ipt.ru with esmtp (Exim 4.54 (FreeBSD)) id 1NUkAm-0007hb-Vg; Tue, 12 Jan 2010 20:04:53 +0300 From: Boris Samorodov To: Marin Atanasov References: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> Date: Tue, 12 Jan 2010 20:04:52 +0300 In-Reply-To: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> (Marin Atanasov's message of "Tue, 12 Jan 2010 17:14:44 +0200") Message-ID: <44678539@bb.ipt.ru> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: freebsd-stable@freebsd.org, freebsd-hardware@freebsd.org Subject: Re: Multiple serial consoles via null modem cable X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jan 2010 17:32:25 -0000 On Tue, 12 Jan 2010 17:14:44 +0200 Marin Atanasov wrote: > I'm thinking about the following situation - 1 system acting like a host > with a serial port hub, each port of the hub is connected to a different > machine on sio0, using null modem cables. Along with milti-io serial cards we use multi-usb serial converters, such as SUNIX UTS7009P (7 USB to serial adapter): http://www.sunix.com.tw/it/en/LinkCraft/UTS4009P_UTS7009P.htm -- WBR, Boris Samorodov (bsam) Research Engineer, http://www.ipt.ru Telephone & Internet SP FreeBSD Committer, http://www.FreeBSD.org The Power To Serve From owner-freebsd-hardware@FreeBSD.ORG Tue Jan 12 17:51:04 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2506E106566C for ; Tue, 12 Jan 2010 17:51:04 +0000 (UTC) (envelope-from spork@bway.net) Received: from xena.bway.net (xena.bway.net [216.220.96.26]) by mx1.freebsd.org (Postfix) with ESMTP id B74C98FC1C for ; Tue, 12 Jan 2010 17:51:03 +0000 (UTC) Received: (qmail 69723 invoked by uid 0); 12 Jan 2010 17:24:21 -0000 Received: from unknown (HELO ?10.157.40.59?) (spork@32.142.138.11) by smtp.bway.net with (AES128-SHA encrypted) SMTP; 12 Jan 2010 17:24:21 -0000 References: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> <44678539@bb.ipt.ru> Message-Id: <256197E6-FA13-491C-8F55-18D2F6A8B11A@bway.net> From: Charles Sprickman To: Boris Samorodov In-Reply-To: <44678539@bb.ipt.ru> Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit X-Mailer: iPhone Mail (7D11) Mime-Version: 1.0 (iPhone Mail 7D11) Date: Tue, 12 Jan 2010 12:23:51 -0500 Cc: "freebsd-stable@freebsd.org" , Marin Atanasov , "freebsd-hardware@freebsd.org" Subject: Re: Multiple serial consoles via null modem cable X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jan 2010 17:51:04 -0000 On Jan 12, 2010, at 12:04 PM, Boris Samorodov wrote: > On Tue, 12 Jan 2010 17:14:44 +0200 Marin Atanasov wrote: > >> I'm thinking about the following situation - 1 system acting like a >> host >> with a serial port hub, each port of the hub is connected to a >> different >> machine on sio0, using null modem cables. > > Along with milti-io serial cards we use multi-usb serial > converters, such as SUNIX UTS7009P (7 USB to serial adapter): > http://www.sunix.com.tw/it/en/LinkCraft/UTS4009P_UTS7009P.htm > I need to look it up when I'm in front of a real computer, but there are a number of reasonably priced multport USB to serial converters out there. We have a 16 port model that's rack mounted and cost around $400. It works better many of the more expensive multiport serial cards. Paired with conserver, it's a really nice solution. Conserver's logging is great... I've used old dedicated terminal servers in the past and they can be a pain to deal with. The newer ones are probably nicer, but are also lots of money. C > -- > WBR, Boris Samorodov (bsam) > Research Engineer, http://www.ipt.ru Telephone & Internet SP > FreeBSD Committer, http://www.FreeBSD.org The Power To Serve > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org > " From owner-freebsd-hardware@FreeBSD.ORG Tue Jan 12 19:50:31 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 38B5510656A4 for ; Tue, 12 Jan 2010 19:50:31 +0000 (UTC) (envelope-from spork@bway.net) Received: from xena.bway.net (xena.bway.net [216.220.96.26]) by mx1.freebsd.org (Postfix) with ESMTP id E33CA8FC25 for ; Tue, 12 Jan 2010 19:50:30 +0000 (UTC) Received: (qmail 38516 invoked by uid 0); 12 Jan 2010 19:50:29 -0000 Received: from unknown (HELO ?10.3.2.41?) (spork@96.57.144.66) by smtp.bway.net with (DHE-RSA-AES256-SHA encrypted) SMTP; 12 Jan 2010 19:50:29 -0000 Date: Tue, 12 Jan 2010 14:50:29 -0500 (EST) From: Charles Sprickman X-X-Sender: spork@hotlap.local To: Boris Samorodov In-Reply-To: <256197E6-FA13-491C-8F55-18D2F6A8B11A@bway.net> Message-ID: References: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> <44678539@bb.ipt.ru> <256197E6-FA13-491C-8F55-18D2F6A8B11A@bway.net> User-Agent: Alpine 2.00 (OSX 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: Marin Atanasov , "freebsd-stable@freebsd.org" , "freebsd-hardware@freebsd.org" Subject: Re: Multiple serial consoles via null modem cable X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jan 2010 19:50:31 -0000 On Tue, 12 Jan 2010, Charles Sprickman wrote: > > On Jan 12, 2010, at 12:04 PM, Boris Samorodov wrote: > >> On Tue, 12 Jan 2010 17:14:44 +0200 Marin Atanasov wrote: >> >>> I'm thinking about the following situation - 1 system acting like a host >>> with a serial port hub, each port of the hub is connected to a different >>> machine on sio0, using null modem cables. >> >> Along with milti-io serial cards we use multi-usb serial >> converters, such as SUNIX UTS7009P (7 USB to serial adapter): >> http://www.sunix.com.tw/it/en/LinkCraft/UTS4009P_UTS7009P.htm >> > > I need to look it up when I'm in front of a real computer, but there are a > number of reasonably priced multport USB to serial converters out there. Here we go: http://www.usbgear.com/USB-Serial.html Some very cool stuff there. They also list the chipset used in some of those so you have some idea if it will work with FreeBSD. I think Vixie originally pointed me to this model: http://www.usbgear.com/computer_cable_details.cfm?sku=USB-16COM-RM&cats=199&catid=493%2C494%2C474%2C199%2C461%2C106%2C1009%2C601 If anyone has the lowdown on which chipsets generally work with FreeBSD (especially with all the changes in 8.0), that would be great. The above model works great on an old 4.11 box. It's an FTDI chipset - at the very bottom of the page they even claim FreeBSD and OpenBSD support. dmesg: uhub2: Genesys Logic USB Hub, class 9/0, rev 1.01/0.11, addr 2 uhub2: 7 ports with 7 removable, self powered ucom0: FTDI USB FAST SERIAL ADAPTER, rev 2.00/5.00, addr 3 [...] ucom11: FTDI USB FAST SERIAL ADAPTER, rev 2.00/5.00, addr 8 [...] uhub3: Genesys Logic USB Hub, class 9/0, rev 1.01/0.12, addr 9 uhub3: 4 ports with 4 removable, self powered ucom12: FTDI USB FAST SERIAL ADAPTER, rev 2.00/5.00, addr 10 [...] ucom15: FTDI USB FAST SERIAL ADAPTER, rev 2.00/5.00, addr 11 Charles > We have a 16 port model that's rack mounted and cost around $400. It > works better many of the more expensive multiport serial cards. Paired > with conserver, it's a really nice solution. Conserver's logging is > great... > > I've used old dedicated terminal servers in the past and they can be a pain > to deal with. The newer ones are probably nicer, but are also lots of money. > > C > >> -- >> WBR, Boris Samorodov (bsam) >> Research Engineer, http://www.ipt.ru Telephone & Internet SP >> FreeBSD Committer, http://www.FreeBSD.org The Power To Serve >> _______________________________________________ >> freebsd-stable@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-stable >> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" From owner-freebsd-hardware@FreeBSD.ORG Tue Jan 12 22:41:01 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EA96D1065679 for ; Tue, 12 Jan 2010 22:41:01 +0000 (UTC) (envelope-from info@martenvijn.nl) Received: from smtp-vbr7.xs4all.nl (smtp-vbr7.xs4all.nl [194.109.24.27]) by mx1.freebsd.org (Postfix) with ESMTP id 87F158FC0C for ; Tue, 12 Jan 2010 22:41:01 +0000 (UTC) Received: from [192.168.178.71] (martenvijn.xs4all.nl [80.101.161.153]) by smtp-vbr7.xs4all.nl (8.13.8/8.13.8) with ESMTP id o0CMUHp2028123; Tue, 12 Jan 2010 23:30:17 +0100 (CET) (envelope-from info@martenvijn.nl) From: Marten Vijn To: Marin Atanasov In-Reply-To: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> References: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> Content-Type: text/plain; charset="UTF-8" Date: Tue, 12 Jan 2010 23:30:16 +0100 Message-ID: <1263335416.7891.33.camel@mvn-desktop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: by XS4ALL Virus Scanner Cc: freebsd-stable@freebsd.org, freebsd-hardware@freebsd.org Subject: Re: Multiple serial consoles via null modem cable X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jan 2010 22:41:02 -0000 On Tue, 2010-01-12 at 17:14 +0200, Marin Atanasov wrote: > Hello there, > > I'd like to ask you about the following - is it possible to have multiple > serial consoles coming from a single host? > > What I am talking about is connecting multiple machines using a null modem > cable - I know it is possible only to connect two machines and they need to > be connected on sio0 (COM1). > > I'm thinking about the following situation - 1 system acting like a host > with a serial port hub, each port of the hub is connected to a different > machine on sio0, using null modem cables. > > This would make the first machine something like a cheaper kind of a > terminal concentrator :) > > What do you think, have someone tried this and is it possible at all? I have a dozen UBS2serial (uplcom) up 24/7 over more than 6 months, on 8.0 (NanoBSD on ITX-board) in our serverrooms. They work pretty stable and are dead cheap. Max 20 Euro per line, including a null-modem adapter. like: http://www.gridconnect.com/numomatomadb.html or http://www.buyextras.com/numoaddb9fef.html I payed about ~3 dollars per adapter. (shipping to Europe was most expensive) Kind regards, Marten > > Thanks and regards, > DNAeon > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" -- http://www.voedselbankleiden.nl needs your help! http://martenvijn.nl http://bsd.wifisoft.org/nek/ http://opencommunitycamp.org OCC 2010 From owner-freebsd-hardware@FreeBSD.ORG Fri Jan 15 06:34:21 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C6BCA106568F; Fri, 15 Jan 2010 06:34:21 +0000 (UTC) (envelope-from dnaeon@gmail.com) Received: from mail-fx0-f227.google.com (mail-fx0-f227.google.com [209.85.220.227]) by mx1.freebsd.org (Postfix) with ESMTP id 33C338FC0A; Fri, 15 Jan 2010 06:34:20 +0000 (UTC) Received: by fxm27 with SMTP id 27so188179fxm.3 for ; Thu, 14 Jan 2010 22:34:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=CROXQ1IUYTRUUEnoxwkb+bn6MtbpcdVnf8QShfQuob4=; b=XMdJp4fdfjYlRgVyU/xNMNy37XS6w8bbo9YkmXFrUmMIb6dW8LVDYDjN9/FsGgZ+NP xEccE7Zwbl6SehtqIFk4cwwajZQwmbPxwuEGNx2yhyk46xsW3UmLCnyc8xrVYeXraiND ed2Uk4XB1wkSWlsLSvK/PSzFfock0PC1WMtxs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=dv6ZpSFol/plvFd2h5ZS+LbbB0qKrdZABFDo104HL9zqmHlQrIsaqD66pTbsjrBbgu +n07+v5K+44Oz+ZNoAaDwOH3pPDiB1PwdX854S6r1IztbVZpLLfnciECbehZOCv5JIcm ZhRqHnZ4Klm7SXGSKGYQcagRMD3pZOddfQ9ew= MIME-Version: 1.0 Received: by 10.223.29.193 with SMTP id r1mr2359081fac.29.1263537257481; Thu, 14 Jan 2010 22:34:17 -0800 (PST) In-Reply-To: <44678539@bb.ipt.ru> References: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> <44678539@bb.ipt.ru> Date: Fri, 15 Jan 2010 08:34:17 +0200 Message-ID: <717f7a3e1001142234y1de7ae15x6853e3ddcab4add9@mail.gmail.com> From: Marin Atanasov To: freebsd-hardware@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-stable@freebsd.org Subject: Re: Multiple serial consoles via null modem cable X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Jan 2010 06:34:21 -0000 Thank you a lot for your feedback! Now to the real question again, because I'm a little confused now - can I still get a usb-to-serial port converter having let's say 8 serial ports and then connect each machine to the usb-to-serial hub and manage them remotely from a single location (the host having the usb-to-serial hub)? That way I just specify a serial port number and I get to a specific machine? The model provided by Boris looks nice, and that was my initial idea, but I'm not sure if I could get it working under FreeBSD. Is conserver or conserver-com able to handle this? I know that cu uses COM1 only, but will conserver able to handle serial consoles on different ports, since the usb-to-serial port would appear as multiple serial ports. Thank you and regards, Marin On Tue, Jan 12, 2010 at 7:04 PM, Boris Samorodov wrote: > On Tue, 12 Jan 2010 17:14:44 +0200 Marin Atanasov wrote: > > > I'm thinking about the following situation - 1 system acting like a host > > with a serial port hub, each port of the hub is connected to a different > > machine on sio0, using null modem cables. > > Along with milti-io serial cards we use multi-usb serial > converters, such as SUNIX UTS7009P (7 USB to serial adapter): > http://www.sunix.com.tw/it/en/LinkCraft/UTS4009P_UTS7009P.htm > > -- > WBR, Boris Samorodov (bsam) > Research Engineer, http://www.ipt.ru Telephone & Internet SP > FreeBSD Committer, http://www.FreeBSD.org The Power To Serve > -- Marin Atanasov Nikolov dnaeon AT gmail DOT com daemon AT unix-heaven DOT org From owner-freebsd-hardware@FreeBSD.ORG Fri Jan 15 07:07:25 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A0335106566C; Fri, 15 Jan 2010 07:07:25 +0000 (UTC) (envelope-from dnaeon@gmail.com) Received: from mail-fx0-f227.google.com (mail-fx0-f227.google.com [209.85.220.227]) by mx1.freebsd.org (Postfix) with ESMTP id 052208FC0A; Fri, 15 Jan 2010 07:07:24 +0000 (UTC) Received: by fxm27 with SMTP id 27so201310fxm.3 for ; Thu, 14 Jan 2010 23:07:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=+Fp39WDosht7p7II/IEMM3JNPey0jleZaSI4t3RWQSs=; b=rkmwWrTcbWUN5Jyqkpb+RqFKQSIClyTSdRTZyKjTMc2vj5J8BNKSvAm3PnRrxSNRAD HLK9iaPDhQoI6ATqRw4S/b5v7HYtsPIf1XKeDKYFP9x8Z5r/YjIOebe36fkRmz0r+ZaK f4DQI6nd/aoDFaTDs6zxAhbSd1DnEjMWx94FI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=P7Gb7BEK9vIjV6tR4fwmEdKIaMC3xNuyqNGAim0p31HQ1v9yJ+78LyLpL3gEAfiUY1 06MWS1je9otWMXKlPDdyuWeBeEHIHTr9FhAK1TnYZJ5HWvUtHdqzP0S8e4IxH4K8VetH hd4n558sfDgEr14L/jZiMs9c8PXDeTKIs//Ms= MIME-Version: 1.0 Received: by 10.223.29.193 with SMTP id r1mr2399940fac.29.1263539241331; Thu, 14 Jan 2010 23:07:21 -0800 (PST) In-Reply-To: <20100115064510.GA81400@icarus.home.lan> References: <717f7a3e1001120714m37aada69gfaa35f0f9b17f435@mail.gmail.com> <44678539@bb.ipt.ru> <717f7a3e1001142234y1de7ae15x6853e3ddcab4add9@mail.gmail.com> <20100115064510.GA81400@icarus.home.lan> Date: Fri, 15 Jan 2010 09:07:21 +0200 Message-ID: <717f7a3e1001142307h1615a0c4ue476c9ef8e5a13ee@mail.gmail.com> From: Marin Atanasov To: freebsd-hardware@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-stable@freebsd.org Subject: Re: Multiple serial consoles via null modem cable X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Jan 2010 07:07:25 -0000 Yeap, that makes sense :) Thank you, I'm gonna try it as soon as I get that device :) Thanks again, Marin On Fri, Jan 15, 2010 at 8:45 AM, Jeremy Chadwick wrote: > On Fri, Jan 15, 2010 at 08:34:17AM +0200, Marin Atanasov wrote: > > Thank you a lot for your feedback! > > > > Now to the real question again, because I'm a little confused now - can I > > still get a usb-to-serial port converter having let's say 8 serial ports > and > > then connect each machine to the usb-to-serial hub and manage them > remotely > > from a single location (the host having the usb-to-serial hub)? That way > I > > just specify a serial port number and I get to a specific machine? > > > > The model provided by Boris looks nice, and that was my initial idea, but > > I'm not sure if I could get it working under FreeBSD. Is conserver or > > conserver-com able to handle this? I know that cu uses COM1 only, but > will > > conserver able to handle serial consoles on different ports, since the > > usb-to-serial port would appear as multiple serial ports. > > I'm referencing the product Charles showed, but the topology would look > like this: > > +------------------------+ > | USB to serial hub | > | U1---- FreeBSD box running conserver > | | > | | > +-P1---P2---P3---P4---..-+ > | | | | > | | | | > | | | `-- box #4 > | | `------- box #3 > | `------------ box #2 > `----------------- box #1 > > "U1" is the uplink port, which has to connect to something -- in this > case the FreeBSD box where conserver would run. The uplink port would > connect to a single USB port on the FreeBSD box. > > The cabling between a port (Px) and a box would be serial (probably > DB9). > > What you end up with on the FreeBSD box is a series of /dev entries > which are associated with all of the ports on the USB to serial hub, > using ucom(4). For example: > > /dev/ttyU0 = P1 = box #1 > /dev/ttyU1 = P2 = box #2 > ... > > You'd then tell conserver using its configuration file that "box name > foo is attached to /dev/ttyU0, box name bar is attached to /dev/ttyU1" > and so on. > > Then to get access to the serial console of either foo or bar, you'd SSH > to the FreeBSD machine and type "console foo" or "console bar". Voila. > > Make sense? > > -- > | Jeremy Chadwick jdc@parodius.com | > | Parodius Networking http://www.parodius.com/ | > | UNIX Systems Administrator Mountain View, CA, USA | > | Making life hard for others since 1977. PGP: 4BD6C0CB | > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > -- Marin Atanasov Nikolov dnaeon AT gmail DOT com daemon AT unix-heaven DOT org