Software⏱️ 3 min read📅 2026-06-19

How to Fix: SVN browsing error session_set/session_checkip in Tuleap

SVN browsing error session_set/session_checkip in Tuleap, reverse proxy and LDAP authentication configuration issue.

Quick Answer: Check the Tuleap configuration for correct IP address matching with LDAP active directory authentication.

SVN browsing error session_set/session_checkip in Tuleap is an issue that affects users who are trying to browse the SVN tree, resulting in an error message. This error occurs when there is a mismatch between the IP address of the user's remote address and the IP address stored in the session.

This error can be frustrating for users who rely on SVN browsing as part of their workflow. Fortunately, this issue can be resolved by following the steps outlined below.

🛑 Root Causes of the Error

  • The primary cause of this error is a misconfiguration of the Tuleap's reverse proxy and LDAP (Active Directory) authentication settings. This mismatch between the IP address of the user's remote address and the IP address stored in the session can occur due to various reasons such as incorrect configuration or outdated software versions.
  • An alternative reason for this error could be a problem with the session.py file, which is responsible for setting up the session. This file may contain errors or conflicts that prevent it from functioning correctly.

🚀 How to Resolve This Issue

Update reverse proxy and LDAP (Active Directory) configuration

  1. Step 1: Check the Tuleap's reverse proxy configuration to ensure that it is set up correctly. Verify that the IP address of the user's remote address matches the IP address stored in the session.
  2. Step 2: Verify that the LDAP (Active Directory) authentication settings are correct and up-to-date. Ensure that the IP address of the user's remote address is correctly configured in the LDAP server.
  3. Step 3: Update the reverse proxy configuration to ensure that it is compatible with the latest version of Tuleap (v8.8).

Check session.py file for errors or conflicts

  1. Step 1: Check the session.py file for any errors or conflicts that may be preventing it from functioning correctly.
  2. Step 2: Verify that the IP address of the user's remote address matches the IP address stored in the session. If not, update the configuration accordingly.

🎯 Final Words

To resolve SVN browsing error session_set/session_checkip in Tuleap, follow the steps outlined above. By updating the reverse proxy and LDAP (Active Directory) configuration and checking the session.py file for errors or conflicts, you should be able to resolve this issue and enable seamless SVN browsing.

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