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Restrict internet access
Add to put the following line under auto wlan0 or auto eth0 in /etc/network/interfaces
pre-up iptables -A OUTPUT -p tcp -m owner --uid-owner username -j DROP
run command:
sudo iptables -A OUTPUT -p tcp -m owner --uid-owner username -j DROP
Run code under a separate user that only has (full) access to it's own directory.
su travis_runner -c "source build_file"
Completely empty this directory after each run
cp -r /home/travis_runner travis_runner.bak
cp -r travis_runner.bak /home/travis_runner
Have presetup databases that also are completely remove and setup after each run
DROP all travis databases
Create all travis database
su josh -c "cd /home/josh; echo 'hi' > hi.txt; echo 'jeroen' >> hi.txt"
* Set a timeout on the above command so hacking is harder and we don't have endless processes.
* Kill all processes by the travis runner on cleanup.