Firewall configuration issue, CentOS only allows external SSH connections by default. RH series has a relatively complete firewall configuration tool. It is not recommended to modify Iptables by yourself. Use system-config-firewall or system-config-firewall-tui to configure it. If not, use yum to install it.
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What error does the browser return?
Could you please tell me your domain name and port? Can it be accessed from the outside? ?
What error did the browser report?
No information?
90% of your problem is caused by the network firewall and lack of permissions.
www.huilvpaijia.com:3000
You are such a domain name. .
You may have many,
For example, the DNS resolution is incorrect,
Resolve to other http services on your server
Looking at the request, it is typical that there is no service response. You can directly give the ip
Firewall configuration issue, CentOS only allows external SSH connections by default.
RH series has a relatively complete firewall configuration tool. It is not recommended to modify Iptables by yourself.
Use system-config-firewall or system-config-firewall-tui to configure it. If not, use yum to install it.