Hi
1st question - try this exploits:
http://milw0rm.com/exploits/9641
http://milw0rm.com/exploits/9598
http://milw0rm.com/exploits/9575
http://milw0rm.com/exploits/9545
http://milw0rm.com/exploits/9542
http://milw0rm.com/exploits/9436
http://milw0rm.com/exploits/9479
this exploits should work on kernel updates older that 15 Aug

2nd - netcat doesn't save logs, but a webserver, like apache save logs
You should clean it, after you will receive a root privileges

__________________
God forgive me for I have sinned
It’s been six months since my last confession
There is nowhere that I can run to
My soul I place in your hands

It's all. Closed. If you have a questions about vulns, go to this thread -
https://forum.antichat.ru/lastpostinthread46016.html