Error Reported When Running the ./helloworld Command

Symptom

The following error information is displayed when running the ./helloworld command:

Key Process and Cause Analysis

X11 forwarding is disabled by default in openEuler.

Conclusion and Solution

1. Open the /etc/ssh/sshd_config file.

   vi /etc/ssh/sshd_config

2. Set the line number.

   :set nu

3. Press i to enter the insert mode. In line 100, delete # and change no to yes.

   

4. Press Esc, type :wq!, and press Enter to save the file and exit.
5. Restart the sshd service.

   systemctl restart sshd.service

6. Open a new SSH connection.