Date: Sun, 16 Oct 2005 08:57:56 -0400 From: "Grant Peel" <gpeel@thenetnow.com> To: "Andrew P." <infofarmer@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Remote Console Message-ID: <009101c5d251$3ca04ed0$6501a8c0@GRANT> References: <007e01c5d243$77839100$6501a8c0@GRANT> <cb5206420510160432n20a6f3aeg3a10e2f7c446f184@mail.gmail.com> <008501c5d24b$80bff0d0$6501a8c0@GRANT> <cb5206420510160544w5652b4e7t3b875e4121b6837a@mail.gmail.com>
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Thanks again Andrew, I will do a search on COM Hubs and see whats out there. I assume, the HUB would connect to one controll terminal, then to each COM port on the servers. I have been reading (pouring over and over) the man and handbook pages to see if more than one console can be specified at a time. If all goes well, it looks like we should be able to do anything from the serial port, short of physicaly pushing the power button! -Grant ----- Original Message ----- From: "Andrew P." <infofarmer@gmail.com> To: "Grant Peel" <gpeel@thenetnow.com> Cc: <freebsd-questions@freebsd.org> Sent: Sunday, October 16, 2005 8:44 AM Subject: Re: Remote Console On 10/16/05, Grant Peel <gpeel@thenetnow.com> wrote: > Thanks Andrew, > > So If I understand your reply, a setup like this should always give me > access to any of the servers by SSHing to one server, then CUing to get to > the console of the 'broken' one, regardless of its state (assuming the > disks > are OK, and boot stage 1 worked): > > (WAN Shown, LAN Same, using seperate nics on Servers and Switch) > > > ISP's router > | > My Switch > -------------------------------------------------------------------------------- > | | | | > | > Serv1 Serv2 Serv3 Serv4 > Serv5 > > Serial1--------->Serial2 > Serial1------------->Serial2 > Serial1------------>Serial2 > > Serial1---------->Serial2 > > Can more than 1 console access type be specified in loader.conf ? > i.e. > console='serialconsole' > console='videoconsole' > > When using 'serial console, does anything have to be specified to use > serial > 2? > > What is the default local console, how is it specified? > i.e. the one you use when you plug a keyboard and monitor directly > into > the machine? > > Would I need to install any other software other than the client (CU)? > > -GRant > I haven't configured comconsoles myself, I just happen to work at a place where they are used heavily (Sun ALOM mostly, but built-in LOMs and FreeBSD software comsonsoles also). Please consult the Handbook and google, I'm sure there's nothing difficult to it. I would not support your chaining idea, though. It's the only one that requires $0.00 budget, but COM hubs are cheap today. If you rent rackspace, I'm sure your colocation provider can offer you some kind of non-expensive remote management. If rackspace is free, consider buying some hardware (like a COM hub). The matter is, that you'll want 9600 bps speeds for max compatibility. While it is usable for occasional failure recovery, chaining it would make it lag too much.
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