How do I fix: 🛑 Root Causes of the Error?

The primary reason for this error is the version of OpenSSL being used. Bind requires a specific version of OpenSSL that supports dynamic loading. If you're using an outdated or unsupported version of OpenSSL, it may cause this error.Another possible reason is the location where OpenSSL is installed

How do I fix: Updating OpenSSL Version?

Step 1: Update the package list to include the latest version of OpenSSL. Run the command apt-get update (for Debian-based systems) or yum update (for RPM-based systems).Step 2: Install the latest version of OpenSSL using your distribution's package manager. For example, on Debian-based systems, run

Coding⏱️ 3 min read📅 2026-06-15

How to Fix: configure error "OpenSSL has unsupported dynamic loading" when building bind9

Q: Step-by-Step Verified Fixes Enabling Dynamic Loading for OpenSSL?

Step 1: Edit the /etc/ld.so.conf file to include the path to the OpenSSL library. Add the following line at the end of the file: # specify the path to the OpenSSL library /usr/local/libStep 2: Run the command ldconfig -m /usr/local/lib to update the dynamic linker configuration.Step 3: Restart the b

Bind9 configuration error fix for OpenSSL dynamic loading issue.

Quick Answer: Update OpenSSL to version 1.1.1 or later, as it supports dynamic loading.

📋 Table of Contents

🛑 Root Causes of the Error
🛠️ Step-by-Step Verified Fixes
💡 Conclusion

When attempting to build bind from sources, users may encounter an error with OpenSSL. This issue affects users who have installed OpenSSL in non-standard locations or have outdated versions of OpenSSL.

This error can be frustrating for system administrators and developers who rely on bind for their DNS needs. Fortunately, there are several methods to resolve this issue.

🛑 Root Causes of the Error

The primary reason for this error is the version of OpenSSL being used. Bind requires a specific version of OpenSSL that supports dynamic loading. If you're using an outdated or unsupported version of OpenSSL, it may cause this error.
Another possible reason is the location where OpenSSL is installed. If OpenSSL is not installed in the default locations (e.g., /usr/local/lib and /usr/local/include), bind may not be able to find it, leading to this error.

🛠️ Step-by-Step Verified Fixes

Enabling Dynamic Loading for OpenSSL

Step 1: Edit the /etc/ld.so.conf file to include the path to the OpenSSL library. Add the following line at the end of the file: # specify the path to the OpenSSL library /usr/local/lib
Step 2: Run the command ldconfig -m /usr/local/lib to update the dynamic linker configuration.
Step 3: Restart the bind service to ensure the changes take effect.

Updating OpenSSL Version

Step 1: Update the package list to include the latest version of OpenSSL. Run the command apt-get update (for Debian-based systems) or yum update (for RPM-based systems).
Step 2: Install the latest version of OpenSSL using your distribution's package manager. For example, on Debian-based systems, run apt-get install openssl.

💡 Conclusion

Resolving the 'OpenSSL has unsupported dynamic loading' error in bind requires attention to either enabling dynamic loading for OpenSSL or updating the version of OpenSSL being used. By following these steps, users can successfully build and configure bind with minimal issues.

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