| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Francesco Tagliani <fran(dot)tm213(at)gmail(dot)com> |
| Cc: | pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: BUG #17776: Connections are terminated unexpectedly sometimes |
| Date: | 2023-02-06 16:18:35 |
| Message-ID: | 2676718.1675700315@sss.pgh.pa.us |
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| Lists: | pgsql-bugs |
Francesco Tagliani <fran(dot)tm213(at)gmail(dot)com> writes:
> I found some logs I don't understand.
> ```
> 2023-02-05 00:37:16.858 UTC [1739876] [unknown](at)[unknown] FATAL:
> unsupported frontend protocol 65363.19778: server supports 3.0 to 3.0
> 2023-02-06 12:26:48.844 UTC [467480] [unknown](at)[unknown] FATAL:
> unsupported frontend protocol 16.0: server supports 3.0 to 3.0
> 2023-02-06 02:17:08.205 UTC [257863] [unknown](at)[unknown] FATAL:
> unsupported frontend protocol 65363.19778: server supports 3.0 to 3.0
> 2023-02-06 06:37:00.411 UTC [345467] [unknown](at)[unknown] FATAL:
> unsupported frontend protocol 0.0: server supports 3.0 to 3.0
> 2023-02-06 06:37:00.679 UTC [345468] [unknown](at)[unknown] FATAL:
> unsupported frontend protocol 255.255: server supports 3.0 to 3.0
> ```
Something port-scanning your server, perhaps? None of those
protocol numbers match anything that Postgres-related code
would use.
regards, tom lane
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