SSH connection via HAProxy (TCP + TLS, custom OpenSSL command) broken since 2025.3.x
SSH connection via HAProxy (TCP + TLS, custom OpenSSL command) broken since 2025.3.x
I am connecting to multiple SSH targets through HAProxy running in TCP mode with TLS termination. This setup worked perfectly up to version 2025.2.12.6 using an SSH Terminal configuration with Proxy = Custom + Local + Custom and the following command:
openssl s_client -connect haproxy.domain.tld:PORT -quiet -servername %h 2>&1
(The 2>&1 is intentionally added to suppress unnecessary SSL output.)
Since version 2025.3.6.7, this no longer works. The connection immediately fails with
IO_EOF_ReadBeyondEOF
Devolutions. ProtocolsSharp: 2026.1.8.1 OS: macos unknown option '2>&1'
Bytes sent: 24, Bytes received: 0
Packets sent:
0, Packets received: 0
Kex completed: 0problem2:
This strongly suggests that command parsing or proxy execution behavior changed between these versions.
All Comments (2)
Hello,
Thank you for reaching out and providing detailed information about the issue.
I will investigate this further with the development team. It does seem like there may be something we need to address on our end, either by fixing it or improving our documentation.
Thank you for your patience.
Best regards,
Jacob Lafrenière
Hello,
Thank you for your patience.
We’ve identified the issue on our end and are actively working on a resolution.
I’ll keep you informed as soon as the fix is available for testing.
Best regards,
Jacob Lafrenière