Run preflight checks

These pre-installation checks are designed to ensure that your server meets the requirements to run Dash Enterprise smoothly. Once they have passed, click Continue.

Some check failures or warnings do not impede installation or use of Dash Enterprise (see next subsection). If any checks apart from those result in errors or warnings, consult Plotly support before proceeding.

Preflight check failure: no route to host

Errors similar to dial tcp getsockopt: no route to host occasionally occur on Centos/RHEL systems and are typically a result of firewall restrictions on your server. To determine whether the firewall is the issue:

  • Open a terminal and run sudo systemctl stop firewalld

  • Reload the preflight checks page

If the above resolves the issue, disable firewalld (if possible) to continue. If disabling firewalld is not an option, add docker0 to the list of active zones, using the below commands as an example:

firewall-cmd --zone=trusted --add-interface=docker0
firewall-cmd --reload