Encountering the dreaded “curl: (35) mistake:1408F10B:SSL routines:ssl3_get_record:incorrect interpretation figure” tin beryllium a irritating roadblock for builders and scheme directors alike. This cryptic mistake communication frequently arises once utilizing the curl bid-formation implement to work together with unafraid internet servers (HTTPS), signaling a mismatch successful SSL/TLS variations betwixt curl and the server. Knowing the base causes of this mistake and understanding however to troubleshoot it is indispensable for anybody running with net applied sciences.
Knowing the Curl (35) Mistake
The curl (35) mistake basically means that the case (your scheme moving curl) and the server are talking antithetic SSL/TLS “languages.” The server mightiness beryllium utilizing an outdated and insecure protocol similar SSLv3, which curl, for safety causes, whitethorn person disabled by default. Alternatively, the server mightiness beryllium implementing a newer TLS interpretation that your interpretation of curl doesn’t activity. This interpretation mismatch leads to the transportation failing.
This content isn’t constricted to conscionable curl; another instruments and libraries that trust connected SSL/TLS connections tin brush akin issues. It highlights the value of protecting package ahead-to-day and making certain compatibility betwixt case and server safety configurations. For illustration, a server configured to lone judge TLSv1.three connections volition cull a case making an attempt to link utilizing TLSv1.2.
Communal Causes and Options
Respective elements tin set off the curl (35) mistake. 1 communal perpetrator is an outdated curl interpretation. Older variations whitethorn deficiency activity for newer TLS protocols oregon mightiness inactive person susceptible protocols enabled. Upgrading curl to the newest interpretation is frequently the archetypal and about effectual resolution.
Different possible origin is server-broadside misconfiguration. If the server is configured to usage lone older, insecure SSL/TLS variations, it volition garbage connections from contemporary purchasers. Checking the server’s SSL/TLS configuration and enabling activity for newer, unafraid protocols is important. This includes configuring the server to like much unafraid protocols similar TLS 1.2 oregon 1.three piece besides disabling outdated protocols similar SSLv2 and SSLv3.
- Outdated curl interpretation
- Server misconfiguration
Troubleshooting Steps
If you’re going through the curl (35) mistake, present’s a systematic attack to troubleshoot it:
- Replace Curl: Guarantee you’re utilizing the newest interpretation of curl. This frequently resolves compatibility points.
- Specify TLS Interpretation: Usage the –tlsv1.2 oregon –tlsv1.three flags with the curl bid to unit a circumstantial TLS interpretation. For illustration: curl –tlsv1.2 https://yourdomain.com
- Cheque Server Configuration: If you negociate the server, confirm its SSL/TLS configuration. Guarantee activity for contemporary TLS variations is enabled and older, insecure variations are disabled. Instruments similar Qualys SSL Labs’ SSL Server Trial tin aid diagnose server-broadside points.
- Examine Web Collection: Usage instruments similar Wireshark oregon tcpdump to seizure and analyse the web collection betwixt your case and the server. This tin supply insights into the SSL/TLS handshake procedure and pinpoint the origin of the nonaccomplishment.
Precocious Strategies and Concerns
Successful any analyzable situations, the content mightiness stem from intermediate web gadgets similar firewalls oregon proxies intercepting and modifying SSL/TLS collection. These gadgets mightiness beryllium imposing outdated safety insurance policies oregon performing SSL inspection utilizing incompatible strategies. Reviewing the configuration of these gadgets and making certain they activity contemporary TLS variations is essential.
Different little communal origin tin beryllium points with the working scheme’s base certificates. If the base certificates utilized to confirm the server’s SSL certificates is outdated oregon lacking, it tin pb to transportation errors. Updating the scheme’s base certificates shop tin resoluteness this. For illustration, connected Linux programs, updating the ca-certificates bundle tin frequently hole certificates-associated points. “Arsenic safety champion practices germinate, staying actual with SSL/TLS configurations is paramount,” advises safety adept Bruce Schneier.
- Firewall oregon proxy interference
- Working scheme base certificates
Infographic Placeholder: [Ocular cooperation of the SSL/TLS handshake procedure and however interpretation mismatches tin pb to errors.]
A existent-planet illustration includes a scheme head making an attempt to automate server backups utilizing curl to transportation information complete HTTPS. The head encountered the curl (35) mistake due to the fact that the backup server was inactive moving an older interpretation of OpenSSL that lone supported SSLv3. Upgrading OpenSSL connected the backup server resolved the content.
Larn much astir troubleshooting web points.Often Requested Questions
Q: What’s the quality betwixt SSL and TLS?
A: TLS (Transport Bed Safety) is the successor to SSL (Unafraid Sockets Bed). Piece the status are frequently utilized interchangeably, TLS is the much contemporary and unafraid protocol. SSLv3 is thought-about outdated and insecure.
By knowing the underlying causes of the curl (35) mistake and pursuing the troubleshooting steps outlined supra, you tin efficaciously resoluteness this communal content and guarantee unafraid connection successful your internet purposes and scripts. Holding your package ahead-to-day and adhering to safety champion practices volition decrease the hazard of encountering this mistake successful the early. Cheque retired these assets for much accusation: curl SSL Certificates, OpenSSL Documentation, and What is TLS?. Don’t fto SSL/TLS errors hinder your advancement – return power and guarantee unafraid connections present!
Question & Answer :
Once I attempt to link to immoderate server (e.g. google.com) utilizing curl (oregon libcurl) I acquire the mistake communication:
curl: (35) mistake:1408F10B:SSL routines:ssl3_get_record:incorrect interpretation figure
Verbose output:
$ curl www.google.com --verbose * Rebuilt URL to: www.google.com/ * Makes use of proxy env adaptable no_proxy == 'localhost,127.zero.zero.1,localaddress,.localdomain.com' * Makes use of proxy env adaptable http_proxy == 'https://proxy.successful.tum.de:8080' * Attempting 131.159.zero.2... * TCP_NODELAY fit * Linked to proxy.successful.tum.de (131.159.zero.2) larboard 8080 (#zero) * efficiently fit certificates confirm places: * CAfile: /and many others/ssl/certs/ca-certificates.crt CApath: no * TLSv1.three (Retired), TLS handshake, Case hullo (1): * mistake:1408F10B:SSL routines:ssl3_get_record:incorrect interpretation figure * Closing transportation zero curl: (35) mistake:1408F10B:SSL routines:ssl3_get_record:incorrect interpretation figure'
For any ground curl appears to usage TLSv1.three equal if I unit it to usage TLSv1.2 with the bid –tlsv1.2 (it volition inactive mark TLSv1.three (Retired), …" I americium utilizing the latest interpretation of some Curl and OpenSSL :
$ curl -V curl 7.sixty one.zero-DEV (x86_64-microcomputer-linux-gnu) libcurl/7.sixty one.zero-DEV OpenSSL/1.1.1 zlib/1.2.eight Merchandise-Day: [unreleased] Protocols: dict record ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp Options: AsynchDNS IPv6 Largefile NTLM NTLM_WB SSL libz TLS-SRP UnixSockets HTTPS-proxy
I deliberation this is a job associated to my set up of the programms. Tin person explicate to maine what this mistake communication means?
* Makes use of proxy env adaptable http_proxy == 'https://proxy.successful.tum.de:8080' ^^^^^
The https:// is incorrect, it ought to beryllium http://. The proxy itself ought to beryllium accessed by HTTP and not HTTPS equal although the mark URL is HTTPS. The proxy volition however decently grip HTTPS transportation and support the extremity-to-extremity encryption. Seat HTTP Link technique for particulars however this is performed.
