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RE: Re: curl SSL error on upload

From: Perrin, Brandon S via curl-users <>
Date: Wed, 11 Dec 2019 13:58:22 +0000

We had already tried the -tlsv1.2 setting but still had same result.

We are running curl 7.29.0

We were able to get the transfer working again by unchecking a setting on the FTPS server that was "require TLS session resumption on data connection when using PROT P" - is this a known issue in curl with the ability to support session resumption ?

-----Original Message-----
From: Daniel Stenberg <>
Sent: Wednesday, December 11, 2019 2:40 AM
To: Perrin, Brandon S via curl-users <>
Cc: Perrin, Brandon S (US) <>
Subject: EXTERNAL: Re: curl SSL error on upload

On Tue, 10 Dec 2019, Perrin, Brandon S via curl-users wrote:

> We can still make a connection successfully however the upload fails with :
> NSS error -5938

What curl and NSS versions are you using? I suspect a very old version?

I found this question on "curl NSS error -5938" on stackoverflow:

... with basically this answer:

  "use the command like curl --tlsv1.2"

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Received on 2019-12-11