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Starting Qnet
☞
 2005, QNX Software Systems
If you run Qnet, anyone else on your network who’s running Qnet can
examine your files and processes, if the permissions on them allow it.
For more information, see:
¯ “File ownership and permissions” in the Working with Files
chapter in this guide
¯ “Qnet” in the Securing Your System chapter in this guide
¯ “Autodiscovery vs static” in the Transparent Distributed
Processing Using Qnet chapter of the Neutrino Programmer’s
Guide
Creating useqnet
To start Qnet automatically when you boot your system, log in as
root and create an empty useqnet file, like this:
touch /etc/system/config/useqnet
If this file exists, your /etc/system/sysinit script starts Qnet
when you boot your machine. If you need to specify any options to
Qnet, edit sysinit and change these lines:
# Enable qnet if user has enabled it.
if test -r /etc/system/config/useqnet -a -d /dev/io-net; then
mount -Tio-net npm-qnet.so
fi
For example, if the hardware is unreliable, you might want to enable
Cyclic Redundancy Checking on the packets. Change the above lines
to:
# Enable qnet if user has enabled it.
if test -r /etc/system/config/useqnet -a -d /dev/io-net; then
mount -Tio-net npm-qnet.so do crc=1
fi
For more information about what happens when you boot your
system, see Controlling How Neutrino Starts.
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Chapter 12 ¯ Using Qnet for Transparent Distributed Processing
October 6, 2005