Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-23 Thread Rudi Ahlers
John R Pierce wrote: Les Mikesell wrote: Rudi Ahlers wrote: I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-23 Thread John R Pierce
Rudi Ahlers wrote: That was a typo in my first post. I am using /dev/ttyS0 - with a bit S :) I have also noticed that there's no tty* in dmesg | grep tty or grep tty /var/log/demsg could this be the problem / reason? I'm running CentOS 5.1 x64 with Xen 3.0 kernel hmmm. 5.1 i686 w/o

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-23 Thread Rudi Ahlers
John R Pierce wrote: Rudi Ahlers wrote: That was a typo in my first post. I am using /dev/ttyS0 - with a bit S :) I have also noticed that there's no tty* in dmesg | grep tty or grep tty /var/log/demsg could this be the problem / reason? I'm running CentOS 5.1 x64 with Xen 3.0 kernel

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-23 Thread Miguel Medalha
Isn't the switch accessible via a Web interface? Most are. If so, why not use a browser to access it? It is much more practical nowadays. Of course, I don't know your concrete case, I am thinking generally. No virus found in this outgoing message. Checked by AVG. Version: 8.0.100 / Virus

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-23 Thread Rudi Ahlers
Miguel Medalha wrote: Isn't the switch accessible via a Web interface? Most are. If so, why not use a browser to access it? It is much more practical nowadays. Of course, I don't know your concrete case, I am thinking generally.

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-23 Thread Miguel Medalha
Yes, it was accessible via the web, until I changed the IP - but forgot to change the subnet mask as well. (...) Can you configure some computer with a manual IP address and subnet mask to fit those the switch has now? You would then be able to change its setup. No virus found in this outgoing

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell? - SOLVED

2008-06-23 Thread Rudi Ahlers
Tru Huynh wrote: Hi Rudi, 1) please TRIM the replies. 2) don't let people try to guess your setup - your initial email does not event state your CentOS version/arch - your should have told that you were using xen at the very beginning - post the relevant lines of /var/log/messages and/or the

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell? - SOLVED

2008-06-23 Thread Tom Lanyon
On 23/06/2008, at 7:56 PM, Rudi Ahlers wrote: Anyway, it's working now. I had to change the Xen config in /boot/ grub/menu and tell Xen not to use ttyS0 as a serial console for itself. http://wiki.xensource.com/xenwiki/InstallationNotes#head-b915c65538e3d0cb29da04e05cb278e44624a522 Good to

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-23 Thread Rudi Ahlers
Barry Brimer wrote: I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just doesn't seem to work. I have not

[CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Rudi Ahlers
Hi all I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just doesn't seem to work. I have changed the

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread John R Pierce
Rudi Ahlers wrote: Hi all I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just doesn't seem to work. I

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Bent Terp
I have changed the comms in minincom to use /dev/tty0 the baud rate to 9600, yet I can't seem to connect with minicom. Does anyone know how to connect to a serial device from the console? This works for me with our Cisco console cables: sudo yum install picocom sudo picocom /dev/ttyS0 BR

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Rudi Ahlers
Bent Terp wrote: I have changed the comms in minincom to use /dev/tty0 the baud rate to 9600, yet I can't seem to connect with minicom. Does anyone know how to connect to a serial device from the console? This works for me with our Cisco console cables: sudo yum install picocom sudo

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Rudi Ahlers
John R Pierce wrote: Rudi Ahlers wrote: Hi all I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Rudi Ahlers
Bent Terp wrote: I have changed the comms in minincom to use /dev/tty0 the baud rate to 9600, yet I can't seem to connect with minicom. Does anyone know how to connect to a serial device from the console? This works for me with our Cisco console cables: sudo yum install picocom sudo

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Les Mikesell
Rudi Ahlers wrote: Hi all I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just doesn't seem to work. I

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Rudi Ahlers
Les Mikesell wrote: Rudi Ahlers wrote: Hi all I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread fred smith
On Sun, Jun 22, 2008 at 09:57:08PM +0200, Rudi Ahlers wrote: Les Mikesell wrote: Rudi Ahlers wrote: Hi all I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office,

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Karanbir Singh
Rudi Ahlers wrote: Hi all I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just doesn't seem to work.

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Rudi Ahlers
Bent Terp wrote: I have changed the comms in minincom to use /dev/tty0 the baud rate to 9600, yet I can't seem to connect with minicom. Does anyone know how to connect to a serial device from the console? This works for me with our Cisco console cables: sudo yum install picocom sudo

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Rudi Ahlers
Karanbir Singh wrote: Rudi Ahlers wrote: Hi all I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread Barry Brimer
I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just doesn't seem to work. I have not been following this

Re: [CentOS] is it possible to login to a switch via RS232 / serial port from the shell?

2008-06-22 Thread John R Pierce
Les Mikesell wrote: Rudi Ahlers wrote: I have a problem switch in our data centre, which is connected to a linux server via a serial cable. I know I can / could access the switch from my Windows PC back at the office, using hyperterm, but trying to access it using minicom just doesn't seem