👨‍🏫 Tutorial Mga Best Open-Source Network Tools (2026) para sa Speed Test, Packet Inspection, at Diagnostics

Magandang araw mga ka-PHC!
Narito ang isang compiled list ng mga top recommended open-source tools para sa network diagnostics, speed testing, at packet inspection sa Windows, Linux, at Android:
1. iPerf3 (Bandwidth & Throughput Benchmark)
Ang gold standard tool para ma-measure ang exact TCP/UDP throughput sa pagitan ng dalawang devices sa local network o remote server.
2. Wireshark (Deep Packet Inspection)
The ultimate network protocol analyzer. Useful para sa pag-examine ng SSL/TLS handshakes, DNS queries, at HTTP headers.
3. Nmap / Zenmap (Port & Service Scanner)
Tool para ma-verify kung aling network ports ang open, filtered, o closed sa iyong router o server.
4. Speedtest-CLI (Terminal Speed Testing)
Lightweight command-line tool na walang browser overhead para sa accurate internet speed testing via Ookla / Speedtest servers.
Kayo mga boss, anong network diagnostic tool ang madalas ninyong gamitin? Share your recommendations below!
 

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