Thank you very much for your help . Can you please do me favor and confirm if the scenario works when both ends are as CentOS (I mean my CentOS server at the office connected to the telephone line and the remote CentOS client at the far site that we need to have remote access to it) ?
Thank you in advance
On Mon, Oct 26, 2009 at 5:42 AM, John R Pierce <pierce@xxxxxxxxxxxx> wrote:
I would use a serial modem, assuming your server has a serial port...hadi motamedi wrote:
> Dear All
> Please be informed that I checked for the presence of internal modem
> on my CentOS server , as the followings :
> #dmesg |grep -i modem
> #lspci |grep -i modem
> #lshw |grep -i modem
> According to the output , it seems that my CentOS client does not
> contain internal modem . So I decided to add external USB modem and
> make use of an PCAnyWhere like application that enables for Remote PC
> Access . Can you please do me favor and let me know how can I add the
> external USB modem to my CentOS host and please propose for an
> PCAnyWhere like application that can be installed on my CentOS client
> and enables for remote dialup connection (as the PCAnyWhere does for
> the MS Windows clients) ?
and then configure a tty on that serial port, along with the modem
autoanswer.
CentOS has mgetty, so in /etc/inittab, you add a line like...
S3:345:respawn:/sbin/mgetty -x3 ttyS0 (for com1 which is dev/tty0)
and configure your modem options in /etc/mgetty+sendfax/mgetty.config
now, you can use a dialup terminal program such as minicom, hyperterm,
etc and dial into that modem on the CentOS system, and get a serial
login prompt.
sadly, I haven't set this sort of thing up in so many years, Ive
forgotten all the specifics. these days, we just use ssh over the internet
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