[CentOS] Inquiry:External USB modem and Remote PC Access?

John R Pierce pierce at hogranch.com
Mon Oct 26 06:42:44 UTC 2009


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) ?

I would use a serial modem, assuming your server has a serial port...  
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




More information about the CentOS mailing list