Hi, I have Debian GNU/Linux 3.1 r0. The modem was working ok! but now the modem doesn't connect. I have the following message in the /var/log/syslog file tcflush failed: Bad file descriptor tcsetattr: Invalid argument (line 1010) I was trying setup a ldap + samba server, I modified the /etc/pam.d/common-xxxx files. It is that I remember. I have pctel modem, HPS56 MicroModem on pc100 board. Which is the problem? and How to can I solve it? thanks! -- I'll be back!