If you reload or restart a firewall service on the Ops Center Administrator server, connections to Ops Center Administrator from a web browser may fail. Some firewall services are reloaded or restarted internally during Ops Center Analyzer setup and during Ops Center Protector installation or removal.
Run the following commands to resolve these issues:
- For Docker, if you reload or restart the iptables service, run the following command on the Ops Center Administrator server:
# systemctl restart docker
- For Podman, if you reload or restart the firewalld, iptables, or nftables service, run the following command on the Ops Center Administrator server:
# systemctl restart rainier
The following table shows the commands that reload and restart firewall services.
| Firewall services | Reloading commands | Restarting commands |
|---|---|---|
| firewalld | firewalld-cmd reload | systemctl restart firewalld |
| iptables | systemctl reload iptables | systemctl restart iptables |
| nftables | systemctl reload nftables | systemctl restart nftables |
The following table shows the firewall services that are reloaded and restarted when Ops Center Analyzer is set up:
| Events | Restarted firewall services |
|---|---|
| Installing Ops Center Analyzer viewpoint | firewalld |
| Changing the port number for the Ops Center Analyzer viewpoint server by using the changeportnumber command | firewalld |
| Installing the Ops Center Analyzer server | firewalld, iptables |
| Installing the Ops Center Analyzer detail view server | firewalld, iptables |
| Installing the Analyzer probe server | firewalld, iptables |
The following table shows the firewall services that are reloaded and restarted when installing or removing Ops Center Protector:
| Events | Firewall services to be restarted |
|---|---|
| Installing Ops Center Protector | iptables |
| Removing Ops Center Protector | iptables |