当我尝试使用curl(或libcurl)连接到任何服务器(例如google.com)时,出现错误消息:
curl:(35)错误:1408F10B:SSL例程:ssl3_get_record:版本号错误
详细输出:
$ curl www.google.com --verbose
* Rebuilt URL to: www.google.com/
* Uses proxy env variable no_proxy == 'localhost,127.0.0.1,localaddress,.localdomain.com'
* Uses proxy env variable http_proxy == 'https://proxy.in.tum.de:8080'
* Trying 131.159.0.2...
* TCP_NODELAY set
* Connected to proxy.in.tum.de (131.159.0.2) port 8080 (#0)
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: none
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* error:1408F10B:SSL routines:ssl3_get_record:wrong version number
* Closing connection 0
curl: (35) error:1408F10B:SSL routines:ssl3_get_record:wrong version number'
出于某种原因,curl似乎使用TLSv1.3,即使我通过命令--tlsv1.2强制它使用TLSv1.2(它仍会打印TLSv1.3(OUT),...“我使用的是最新版本Curl和OpenSSL的:
$ curl -V
curl 7.61.0-DEV (x86_64-pc-linux-gnu) libcurl/7.61.0-DEV OpenSSL/1.1.1 zlib/1.2.8
Release-Date: [unreleased]
Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp
Features: AsynchDNS IPv6 Largefile NTLM NTLM_WB SSL libz TLS-SRP UnixSockets HTTPS-proxy
我认为这是与我安装程序有关的问题。有人可以向我解释此错误消息的含义吗?