Found a possibly curious issue when I did a "yum update" on my CentOS
5.1 box this past week. I'm not 100% sure what version I had prior (I
think it was "ntop-3.3-1.el5.rf.x86_64" from Jan 2008), but the new
version is "ntop-3.3.6-1.el5.rf.x86_64".
The error lies in the init.d script used to start/stop ntop on
CentOS/RedHat systems. I believe this script is created by RedHat, not
the ntop maintainers, but it possibly highlights an error in the new
version.
For the older version, the following line works properly (this appears
in the start() method inside the /etc/init.d/ntop file):
daemon $prog -d -L @/etc/ntop.conf
But with the new version, the above line causes ntop to fail during the
initial parse of the ntop.conf file as it complains about arguments.
But if we move the @ argument to the front of the list, the new version
of ntop runs without issues.
daemon $prog @/etc/ntop.conf -d -L
The failure message when ntop dies during startup due to the @ option
being at the end of the list of arguments looks like:
--------------------------------------------
# /etc/init.d/ntop start
Starting ntop: Processing file /etc/ntop.conf for parameters...
Tue Jun 17 10:57:03 2008 NOTE: Interface merge enabled by default
Tue Jun 17 10:57:03 2008 Initializing gdbm databases
FATAL ERROR: Unrecognized/unprocessed ntop options...
, --user ntop, ,
--db-file-path /var/ntop, , --interface eth0, , ,
--use-syslog, , , , , , , --daemon,
run ntop --help for usage information
Common problems:
-B "filter expressions" (quotes are required)
--use-syslog=facilty (the = is required)
[FAILED]
--------------------------------------------
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