Vultr Firewall Blocking Connections
Quick answer
Two firewalls can block you: the Vultr Firewall group (network level) and the one on the server (UFW, firewalld, iptables). Test by unlinking the group, then check the host firewall.
Most likely fix: Debug the Vultr Firewall
How to fix it
Try these in order — the most common fix is first.
1. Debug the Vultr Firewall
- Unlink the Firewall Group from the instance temporarily
- Retest the connection
- Add the needed inbound rule (e.g. TCP 80, 443, 22) and relink
Did this fix it?2. Check the host firewall
- In View Console run ufw status or iptables -L
- Allow the port, e.g. ufw allow 22/tcp before enabling UFW
Did this fix it?
Symptoms
Web server, SSH or app ports unreachable though the service runs.
Why it happens
- Firewall group has no rule for the port
- UFW defaults to deny incoming
- Rules limited to wrong source IP or IPv6 only
This guide also covers
- vultr firewall not working
- vultr port blocked
- vultr firewall blocking
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