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 Blocked Ports & Protocols by ISP, List of blocked ports by local ISPs

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failed.hashcheck
post Mar 10 2023, 03:30 PM

Neighborhood plant pathologist
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Joined: Aug 2009
From: Shithole Klang
Celcom, test with netcat to/from GCP instance in SG.

CODE
for i in 20 21 22 23 25 69 53 88 110 119 123 143 161 465 587 636 989 990 995 1194 4444 6667 80 8080 443 ; do nc -lvnp $i & done


user posted image

Only port 25 blocked.

 

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