Overview This error indicates that the SSL/TLS connection failed because the server is using Diffie-Hellman (DH) parameters that are considered too small by modern security standards. It is most commonly encountered when connecting to servers that still use weak or outdated cryptographic configurations. What causes this error? The error occurs when: Modern OpenSSL versions (1.1.1+ […]
Articles Tagged: Error 35
Error 35: error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure
Cause This error occurs when the monitoring server fails to complete the SSL/TLS handshake with the target website. In most real-world cases, this is not caused by outdated SSL protocols, but by an inconsistent or broken server-side TLS configuration. A common scenario is when the domain resolves to multiple IP addresses, with at least one […]
Error 35: error:0A000152:SSL routines::unsafe legacy renegotiation disabled
Cause You can get this Uptime Monitoring error in your Location Fail Log if your web server does not support SSL Secure Renegotiation. This is a severe SSL vulnerability (CVE-2009-3555) that could allow an attacker to insert data into secured HTTPS sessions. Fix It is advisable to upgrade your server and use the current SSL […]
Error 35: error:0A000102:SSL routines::unsupported protocol
Overview This error indicates that the SSL/TLS connection failed because the server and client could not agree on a supported protocol version. It typically occurs when the server only supports outdated SSL/TLS versions that are no longer accepted by modern clients. What causes this error? The error occurs when: Modern OpenSSL versions (especially 1.1.1+ and […]