Ever wondered how your online requests are securely routed? This article breaks down the path from your computer to the internet, highlighting the roles of Edge UTM and DNS in ensuring secure and efficient communication.
How Internet Traffic Flows Securely
1. Client Request
- Your computer sends a request via:
- TCP/80 (HTTP) for unencrypted traffic.
- TCP/443 (HTTPS) for encrypted traffic.
- Example command to check active connections:
netstat -tuln | grep -E '80|443'
2. Edge UTM (Unified Threat Management)
- Acts as a security gateway, inspecting traffic for threats.
- Common UTM features:
- Firewall
- Intrusion Prevention System (IPS)
- VPN
- Antivirus scanning
- Example firewall rule (Linux
iptables):iptables -A INPUT -p tcp --dport 80 -j ACCEPT iptables -A INPUT -p tcp --dport 443 -j ACCEPT
3. Internet Routing
- Traffic passes through ISPs and backbone networks.
- Use `traceroute` to see the path:
traceroute example.com
4. C2 DNS (Command and Control DNS)
- Translates domain names (e.g.,
google.com) to IPs. - Example DNS lookup:
nslookup example.com
- Secure DNS with DNSSEC:
dig example.com +dnssec
You Should Know: Hardening Your Network
- Enable DNS over HTTPS (DoH) for privacy:
Configure in Firefox: about:config → network.trr.mode → 2
- Block malicious domains using
/etc/hosts:echo "0.0.0.0 malware.com" | sudo tee -a /etc/hosts
- Monitor UTM logs for attacks:
tail -f /var/log/utm/firewall.log
- Test HTTPS security with OpenSSL:
openssl s_client -connect example.com:443
What Undercode Say
Edge UTM and DNS are critical for secure internet communication. By implementing:
– Strict firewall rules
– Encrypted DNS (DoH/DoT)
– Regular UTM updates
you mitigate risks like MITM attacks and data breaches.
For advanced users:
- Deploy a Pi-hole for DNS filtering.
- Use Suricata for network IDS/IPS.
- Automate threat detection with Snort.
Expected Output:
$ nslookup example.com Server: 8.8.8.8 Address: 8.8.8.853 Non-authoritative answer: Name: example.com Address: 93.184.216.34
$ openssl s_client -connect example.com:443 CONNECTED(00000003) depth=2 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert Global Root CA verify return:1 depth=1 C = US, O = DigiCert Inc, CN = DigiCert SHA2 Secure Server CA verify return:1 depth=0 CN = example.com verify return:1 Certificate chain 0 s:/CN=example.com i:/C=US/O=DigiCert Inc/CN=DigiCert SHA2 Secure Server CA
Prediction:
As cyber threats evolve, Edge UTM systems will integrate more AI-driven anomaly detection, while DNS security will shift towards decentralized solutions like blockchain-based DNS to prevent tampering.
For further reading:
References:
Reported By: Alexrweyemamu Secure – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
