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tcping – công cụ chuẩn đoán mạng

Leave a comment Posted by ttriet on 05/09/2013

Để thay thế công cụ ping truyền thống, thường bị các firewall filter (deny icmp protocol), bạn có thể dùng tcping để kiểm tra theo 1 dịch vụ nào đó có “reply” không và latency là bao nhiêu?

Homepage: http://www.elifulkerson.com/projects/tcping.php

Ví dụ dễ hiểu:

  • Ping ttriet.wordpress.com theo cách truyền thống:

C:\>ping ttriet.wordpress.com

Pinging lb.wordpress.com [66.155.11.238] with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out.

Ping statistics for 66.155.11.238:     Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

  • Dùng tcping:

C:\>tcping.exe ttriet.wordpress.com 80

Probing 66.155.11.238:80/tcp – Port is open – time=74.010ms Probing 66.155.11.238:80/tcp – Port is open – time=73.476ms Probing 66.155.11.238:80/tcp – Port is open – time=73.724ms Probing 66.155.11.238:80/tcp – Port is open – time=74.564ms

Ping statistics for 66.155.11.238:80      4 probes sent.      4 successful, 0 failed. Approximate trip times in milli-seconds:      Minimum = 73.476ms, Maximum = 74.564ms, Average = 73.944ms

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