Chapter 5: Scanning and Managing Networks

# modify my ip
$ ifconfig [interface_name] <xx.xx.xx.xx>

# modify net mask and broadcast address
$ ifconfig [interface_name] <xx.xx.xx.xx> netmask <xx.xx.xx.xx> broadcast <xx.xx.xx.xx>

# spoof MAC address
$ ifconfig [interface_name] down
$ ifconfig [interface_name] hw ether XX:XX:XX:XX:XX:XX
$ ifconfig [interface_name] up

# browse bluetooth services 
$ sdptool browse MACaddress

# check if device is reachable
$ l2ping MACaddress

• Other commands
  • dig: gather DNS information
    • IP address of the target’s nameserver
    • the target’s email server
    • (potentially) any subdomains and IP addresses
  • wifi 관련
    • iwevent, iwlist, iwspy, ifrename, iwgetid
    • aircrack-ng (airmon-ng, airodump-ng)
• Bluetooth paring
  • 2개의 device 가 discoverable mode 에서 Technical information, Name, List of services, Class 를 broadcast
  • link key 를 교환하여 추후 paring 시 사용
  • hciconfig, hcitool, hcidump

Chapter 7: Cyber Security

• We do not desire that one critical part of a system failure can render the entire system unusable.
• A single point of failure can be reduced or eliminated by way of redundancy.

Chapter 8: Becoming Secure and Anonymous

• proxy 에 접속후 proxy 의 IP 사용하여 다른 곳으로 접속

# proxy chain 을 활용한 접속
proxychains <the command you want proxied> <arguments>

Chapter 9: Cryptography

• Symmetric Cryptography: DES, 3DES, AES, RC4, Blowfish, Twofish
• Asymmetric Cryptography: Diffie-Hellman, RSA, PKI, ECC, PGP