I believe it much more safer to use group-based access permission. E.g: # chown .kannel /dev/ttyS0 # chmod ug+rw,o-rwx /dev/ttyS0
If you use Debian default installation, then device file /dev/ttyS0 will be owned by 'uucp' group. You can easily set your kannel user to be in 'uucp' group, in order to access /dev/ttyS0. E.g: # adduser kannel uucp # chmod ug+rw,o-rwx /dev/ttyS0 On Tue, 2003-12-30 at 05:35, Rene Kluwen wrote: > Without saying anything about whether Kannel, run by root, is secure or not: > You can either choose that option > > or > > chmod ugo+rw /dev/ttyS0 so ordinary users can also use your modem. > > Rene Kluwen > Chimit > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of > Nicholas Calugar > Sent: maandag 29 december 2003 22:34 > To: [EMAIL PROTECTED] > Subject: Problems with Debian Startup Scripts > > > I have Kannel-Devel 1.3.1 installed using the Debian package. I had to > edit a few lines in /etc/init.d/kannel-devel to start the boxes. I'm not > exactly sure what this is checking, but I assume it's trying to decide > whether or not to start the smsbox. As far as I can tell $START_SMSBOX > is not defined: > > test ! -z $START_SMSBOX && ( > . > . > . > ) > > Also, this may be more of a Linux user group question: There is an > argument given to start-stop-daemon: > > --chuid kannel > > With this argument, the bearerbox doesn't have permission to access the > GSM Modem I have attached to /dev/ttyS0. Here is info from the > bearerbox.log: > > 2003-12-29 10:31:17 [0] INFO: AT2[16195192314]: configuration shows > modemtype <wavecom> > 2003-12-29 10:31:17 [0] DEBUG: AT2[16195192314]: Reading modem > definitions from </etc/kannel/kannel.conf> > 2003-12-29 10:31:17 [0] DEBUG: AT2[16195192314]: Found <1> modems in > config > 2003-12-29 10:31:17 [0] INFO: AT2[16195192314]: read modem definition > for <wavecom> > 2003-12-29 10:31:17 [0] DEBUG: Started thread 5 > (gw/smsc/smsc_at2.c:at2_device_thread) > 2003-12-29 10:31:17 [5] INFO: AT2[16195192314]: opening device > 2003-12-29 10:31:17 [5] ERROR: AT2[16195192314]: open failed! ERRNO=13 > 2003-12-29 10:31:17 [5] ERROR: System error 13: Permission denied > 2003-12-29 10:31:17 [5] ERROR: AT2[16195192314]: at2_device_thread: > open_at2_device failed. Terminating > 2003-12-29 10:31:17 [5] ERROR: System error 13: Permission denied > > If I remove the argument, it starts fine but is run by root. I'm not > sure if this is a security risk. > > Thanks, > > Nicholas Calugar > 619-546-9803 > 866-404-2428 > > Chatter > 3577 4th Ave. > San Diego, CA 92103 > > www.2chatter.com > -- Regards, [cogito ergo sum] GPG fingerprint: E2BC 9029 F3FB 90C7 2FAB 9E42 421E F015 119E 0D5D GPG Public key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x119E0D5D
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