[NTLUG:Discuss] cannot execute /usr/bin/perl /etc/vocp/vocp.pl

Robert Thompson ntlug at thorshammer.org
Wed Nov 30 19:48:11 CST 2005 

I guess I misunderstand how the /etc/vocp/vocp.pl script gets executed.
The logs look like some process is attempting to execute that script.
You say that you are able to run it from the command line, so that means
the logs are from something else, correct? What is that thing? A
'permission denied' error message means that what ever process is
attempting to execute that thing does not have permissions. Root will
always have permission unless you are using access controls (like
selinux or somesuch).

You can run top from the command line to monitor new processes in real
time. Man top to see it's options.

Robert Thompson


On Tue, 2005-11-29 at 14:15 +0000, m m wrote:
> Robert and All:
> 
> Use ps -uaxf, I see the root is running the vgetty.
> It is always running.
> In other words, It always listed when doing ps command
> no matter if I am calling the modem or not.
> 
> Modem is set to /dev/ttyS0
> the log file was generated when I make a call.
> 
> Is there any way to monitor the new process/program created
> (like windowz task manager in kde or console) in real time
> so I can check when I make a call and who is executing the vocp.pl?
> 
> Thanks.
> 
> 
> >From: Robert Thompson <ntlug at thorshammer.org>
> >Reply-To: NTLUG Discussion List <discuss at ntlug.org>
> >To: NTLUG Discussion List <discuss at ntlug.org>
> >Subject: Re: [NTLUG:Discuss] cannot execute /usr/bin/perl /etc/vocp/vocp.pl
> >Date: Mon, 28 Nov 2005 18:18:53 -0600
> >
> >I am not familiar with vgetty, but what part of vgetty
> >runs /etc/vocp.vocp.pl? Does it get run from cron, the web (apache), a
> >daemon, etc? Each of these should have a user associated with the
> >program (cron, apache, www, nobody, etc). Once you know that user you
> >can su to them and run the script to see what errors you get (you will
> >probably need to edit /etc/passwd and give them a valid shell if
> >it's /sbin/nologin or somesuch (remember to change it back when you're
> >done)).
> >
> >Robert Thompson
> >
> >On Mon, 2005-11-28 at 17:09 +0000, m m wrote:
> > > Robert and all:
> > >
> > > Yes,  perl is in the /usr/bin.
> > > and the vocp.pl has been modified to fit my system. ( I guess :) )
> > >
> > > The good question is
> > > "Which user is attempting to execute /etc/vocp/vocp.pl"
> > >
> > > I don't know which user execute /etc/vocp/vocp.pl.
> > > That is why I set the permission to 777
> > > does the permission 777 don't count?
> > >
> > > How do I find out which user  is attempting to execute the program?
> > >
> > > Thanks.
> > >
> > > >From: Robert Thompson <ntlug at thorshammer.org>
> > > >Reply-To: NTLUG Discussion List <discuss at ntlug.org>
> > > >To: NTLUG Discussion List <discuss at ntlug.org>
> > > >Subject: Re: [NTLUG:Discuss] cannot execute /usr/bin/perl 
> >/etc/vocp/vocp.pl
> > > >Date: Sun, 27 Nov 2005 19:19:05 -0600
> > > >
> > > >If you do a 'which perl' is it in /usr/bin? Which user is attempting to
> > > >execute /etc/vocp/vocp.pl and can you su to that user and execute the
> > > >script? Are there any configs in vocp.pl that need to be changed?
> > > >
> > > >It's best to troubleshoot the first error message(s) before going to 
> >the
> > > >next ones unless you know they are harmless. The early errors could be
> > > >the cause of the later ones.
> > > >
> > > >Robert Thompson
> > > >
> > > >
> > > >On Sun, 2005-11-27 at 18:21 +0000, m m wrote:
> > > > > Hi All,
> > > > >
> > > > > I spend all my Thanksgiving holiday with "vgetty".  Here is my 
> >problem.
> > > > > Please help, Thanks
> > > > >
> > > > > Here is the log file, I inseerted my question in the log file:
> > > > >
> > > > > 04/30 01:05:12 yS0  reading ring_type ring configuration from config
> > > >file
> > > > > /etc/mgetty+sendfax/voice.conf
> > > > > 04/30 01:05:14 yS0  vgetty: Executing shell script /etc/vocp/vocp.pl
> > > >with
> > > > > shell /usr/bin/perl
> > > > > 04/30 01:05:14 yS0  vgetty: cannot execute /usr/bin/perl
> > > >/etc/vocp/vocp.pl
> > > > >
> > > > > - why does this happened? the /etc/vocp/vocp.pl has set to 777
> > > > > - I am able to run it on command line
> > > > >
> > > > > 04/30 01:05:14 yS0  vgetty: Got child 3906 exit status 25344 signal
> > > > > 04/30 01:05:14 yS0  vgetty: could not write to shell
> > > > >
> > > > > -why does this "write to shell"  mean?
> > > > >
> > > > > 04/30 01:05:14 yS0  vgetty: shell script /etc/vocp/vocp.pl exited
> > > >unnormally
> > > > > 04/30 01:05:14 yS0  playing voice file
> > > >/var/spool/voice/messages/usr_eng.rmd
> > > > > 04/30 01:05:14 yS0  vgetty: cannot set effective GID to 503: 
> >Operation
> > > >not
> > > > > permitted
> > > > >
> > > > > - what permission and to whom?
> > > > > - GID 503 is phone
> > > > > - in /etc/group I have a line like this
> > > > > -  phone:x:503:
> > > > > - and I  appended root
> > > > > - phone:x:503:root
> > > > > - still have the same peoblem
> > > > >
> > > > >
> > > > > 04/30 01:05:14 yS0  vgetty: Could not play greeting message
> > > > > 04/30 01:05:15 yS0  recording voice file
> > > > > /var/spool/voice/incoming/v-3875-925434314.rmd
> > > > > 04/30 01:05:15 yS0  vgetty: cannot set effective GID to 503: 
> >Operation
> > > >not
> > > > > permitted
> > > > > 04/30 01:05:15 yS0  vgetty: Could not record a message
> > > > > --
> > > > > 04/30 01:05:15 yS0  vgetty: experimental test release 0.9.32 / with
> > > >duplex
> > > > > patch
> > > > > 04/30 01:05:15 yS0  mgetty: interim release 1.1.33-Apr10
> > > > > 04/30 01:05:15 yS0  reading generic configuration from config file
> > > > > /etc/mgetty+sendfax/voice.conf
> > > > > 04/30 01:05:15 yS0  reading program vgetty configuration from config
> > > >file
> > > > > /etc/mgetty+sendfax/voice.conf
> > > > > 04/30 01:05:15 yS0  reading port ttyS0 configuration from config 
> >file
> > > > > /etc/mgetty+sendfax/voice.conf
> > > > > 04/30 01:05:15 yS0  check for lockfiles
> > > > > 04/30 01:05:15 yS0  locking the line
> > > > > 04/30 01:05:16 yS0  lowering DTR to reset Modem
> > > > > 04/30 01:05:17 yS0  send: \dATQ0V1H0[0d]
> > > > > 04/30 01:05:17 yS0  waiting for ``OK'' ** found **
> > > > > 04/30 01:05:17 yS0  send: ATS0=0Q0&D3&C1[0d]
> > > > > 04/30 01:05:17 yS0  waiting for ``OK'' ** found **
> > > > > 04/30 01:05:17 yS0  mdm_send: 'ATI'
> > > > > 04/30 01:05:18 yS0  USR Courier/Sportster V.34(+) detected
> > > > > 04/30 01:05:18 yS0  mdm_send: 'ATI3'
> > > > > 04/30 01:05:18 yS0  additional info: 'USRobotics Sportster Voice 
> >33600
> > > >Fax
> > > > > RS Rev. 2.0'
> > > > > 04/30 01:05:18 yS0  modem quirks: 0080
> > > > > 04/30 01:05:18 yS0  mdm_send: 'AT+FCLASS=2.0' -> OK
> > > > > 04/30 01:05:18 yS0  mdm_send: 'AT+FAA=1;+FCR=1' -> OK
> > > > > 04/30 01:05:18 yS0  mdm_send: 'AT+FBO=1' -> OK
> > > > > 04/30 01:05:18 yS0  mdm_send: 'AT+FNR=1,1,1,0' -> OK
> > > > > 04/30 01:05:19 yS0  mdm_send: 'AT+FLI="49 115 xxxxxxxx"' -> OK
> > > > > 04/30 01:05:19 yS0  mdm_send: 'AT+FCC=1,5,0,2,0,0,0,0' -> OK
> > > > > 04/30 01:05:19 yS0  detecting voice modem type
> > > > > 04/30 01:05:21 yS0  US Robotics detected
> > > > > 04/30 01:05:22 yS0  US Robotics voice modem
> > > > > 04/30 01:05:22 yS0  This is a driver beta version. V0.4.b3
> > > > > 04/30 01:05:22 yS0  VTD setup successful
> > > > > 04/30 01:05:24 yS0  waiting...
> > > > >
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