34 lines
1.3 KiB
Makefile
34 lines
1.3 KiB
Makefile
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Long: insecure
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Short: k
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Help: Allow insecure server connections
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Protocols: TLS SFTP SCP
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See-also: proxy-insecure cacert capath
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Category: tls sftp scp
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Example: --insecure $URL
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Added: 7.10
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Multi: boolean
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---
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By default, every secure connection curl makes is verified to be secure before
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the transfer takes place. This option makes curl skip the verification step
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and proceed without checking.
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When this option is not used for protocols using TLS, curl verifies the
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server's TLS certificate before it continues: that the certificate contains
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the right name which matches the host name used in the URL and that the
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certificate has been signed by a CA certificate present in the cert store.
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See this online resource for further details:
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https://curl.se/docs/sslcerts.html
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For SFTP and SCP, this option makes curl skip the *known_hosts* verification.
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*known_hosts* is a file normally stored in the user's home directory in the
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".ssh" subdirectory, which contains host names and their public keys.
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**WARNING**: using this option makes the transfer insecure.
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When curl uses secure protocols it trusts responses and allows for example
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HSTS and Alt-Svc information to be stored and used subsequently. Using
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--insecure can make curl trust and use such information from malicious
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servers.
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