A must „USE“ in these insecure days:
- nmap Portscan Tool use nmap -PN IP-Address to check failed Firewall Settings!
- arp-scan Network Scan to find active devices
- iftop to detect traffic and used Ports on a physical network Interface!
- ps aux show active processes on a Linux System
- htop more human friendly Process Monitor
- iotop human friendly traffic monitor from CPU/RAM to Drives
- Daily check Error Logs!
- Use always Firewalls and Disk/File Encryption!
- Don’t trust Hardware Protection (TPM) Chips most do communicate by clean signals on copper which can be read out by hardware hacking or magnetic fields!
- NEVER leave Hardware in public Places!