Wrong DNS resolution

[michalkahle]

Environment data

• VS Code version: 1.89.1
• Jupyter Extension version (available under the Extensions sidebar): v2024.4.0
• Python Extension version (available under the Extensions sidebar): v2024.6.0
• OS (Windows | Mac | Linux distro) and version: Ubuntu 22.4
• Python and/or Anaconda version: XXX
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): XXX
• Jupyter server running: Local | Remote | N/A

Expected behaviour

Connect to JupyterHub running at 172.17.63.10.

Actual behaviour

Tries to connect to a wrong IP (172.16.99.211). Times out. Error sending request to https://horus.ikem.cz/hub/api FetchError: request to https://horus.ikem.cz/hub/api failed, reason: connect ETIMEDOUT 172.16.99.211:443

Attempts to diagnose/fix the problem:

1. I've tested in the browser that https://horus.ikem.cz/hub/api returns json {"version": "1.5.1"}
2. I've tried to flush DNS cache with sudo resolvectl flush-caches
3. I've tried to add the correct IP address to /etc/hosts
4. I've tested connection from node:

   node -e 'fetch("https://horus.ikem.cz/hub/api").then(resp => { console.log(resp.status, resp.statusText); })'
   200 OK

Logs

Output for Jupyter in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Jupyter)

``` 18:40:59.930 [error] Error sending request to https://horus.ikem.cz/hub/api FetchError: request to https://horus.ikem.cz/hub/api failed, reason: connect ETIMEDOUT 172.16.99.211:443 > at ClientRequest. (/home/mkah/.vscode-server/extensions/ms-toolsai.jupyter-hub-2023.10.1003012305/dist/extension.node.js:63581:18) > type = system > errno = ETIMEDOUT > code = ETIMEDOUT 18:43:11.001 [error] Error sending request to https://horus.ikem.cz/hub/api FetchError: request to https://horus.ikem.cz/hub/api failed, reason: connect ETIMEDOUT 172.16.99.211:443 > at ClientRequest. (/home/mkah/.vscode-server/extensions/ms-toolsai.jupyter-hub-2023.10.1003012305/dist/extension.node.js:63581:18) > type = system > errno = ETIMEDOUT > code = ETIMEDOUT 18:43:11.002 [error] Failed to determine base url for https://horus.ikem.cz Error: Unable to determine base url of Jupyter Hub Server > at getJupyterHubBaseUrl (/home/mkah/.vscode-server/extensions/ms-toolsai.jupyter-hub-2023.10.1003012305/dist/extension.node.js:64314:9) ```

[DonJayamanne]

Sorry for not getting back to you on this, please can you try the following

• Uninstall JupyterHub extension
• Download the attached file
• Extract this file
• Open VS Code and select the command Install from VSIX
• Select the above extracted VSIX
• Enable logging (debug logging)
• When prompted to reload VS Code, please do so
• Try to replicate the issue once again
• Capture all the logs from the JupyterHub output panel
• Share the logs

ms-toolsai-jupyter-hub-insiders.vsix.zip

Screenshot for enabling logging

To get to the logs, please open the bottom output panel (use the command Outupt: Focus Output View) & then select JupyterHub