Virtual Serial Port / Tunneling - Networking

This is a discussion on Virtual Serial Port / Tunneling - Networking ; Given: 2 Linux servers (Server 1 (elmo) & Server 2 (oscar) -- assume RHEL ES4 if needed) with network connections on different subnets, each with a a Digi AccelePort Xem with 16-port RS-232 RJ-45 concentrator (/dev/ ttyx0 - ttyxf) attached. ...

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Thread: Virtual Serial Port / Tunneling

  1. Virtual Serial Port / Tunneling

    Given:
    2 Linux servers (Server 1 (elmo) & Server 2 (oscar) -- assume RHEL ES4
    if needed) with network connections on different subnets, each with a
    a Digi AccelePort Xem with 16-port RS-232 RJ-45 concentrator (/dev/
    ttyx0 - ttyxf) attached. Muti-Tech modems for inbound & outbound
    faxing will be attached to serial ports on each server. Will be
    running HylaFax to send out faxes to the various tty ports.

    Needed:
    Oscar acts as D/R for Elmo. However instead of paying for lines &
    modems to be utilized as D/R, I would rather use them for production
    and accept the reduced capacity if we had to fail over to D/R.
    Therefore, I am wanting to find out if there is a server software that
    will allow me to share the local specified TTY over TCP/IP. And client
    software that will allow me to virtualize a local port to the shared
    TCP/IP port on the other server. So in this case, Oscar would need the
    serial to ethernet server enabling and Elmo would need the virtual
    client to map it as a local serial port.

    I understand that there are plenty of serial over ethernet servers
    with proprietary client software to create virtual serial ports on
    linux/win workstations or servers. However, I already have the serial
    cards for these servers purchased and would rather use what I have
    than buy something standalone allbeit preferred.

    Thanks in advance!


  2. Re: Virtual Serial Port / Tunneling

    On Fri, 06 Apr 2007 10:52:12 -0700, hobbzilla wrote:

    [ hylafax ]

    > Therefore, I am wanting to find out if there is a server software that
    > will allow me to share the local specified TTY over TCP/IP.


    Try google for like: ser2net, rtty and/or ttywatch.

    > And client software that will allow me to virtualize a local port to the
    > shared TCP/IP port on the other server. [...]


    Not sure such a program exists ...
    Maybe look into makeing the app do that itself though:

    http://bugs.hylafax.org//show_bug.cgi?id=425#c2

    -Menno.


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