Registered · Cross-platform

3000 Dev servers / Grafana

TCP Unofficial
UDP
SCTP
DCCP

What it is

Common dev default (Rails, Node, React, Gitea) and Grafana UI.

When / why

Local development and Grafana dashboards. Do not expose dev servers publicly.

Protocol status detail

TransportStatusMeaning
TCP Unofficial Not assigned by IANA, but standardized, specified, or widely used on this port.
UDP Not applicable for this transport.
SCTP Not applicable for this transport.
DCCP Not applicable for this transport.

Port range

Registered (1024–49151). Assigned by IANA on request; usable without elevated privileges on most systems.

Browse all ports →

Firewall rules for port 3000

Copy-ready inbound rules for the active transports. Replace every <source> placeholder with the specific host, subnet, or CIDR that should reach this port.

ufw

sudo ufw allow proto tcp from <source> to any port 3000

Allow TCP 3000 (Dev servers / Grafana). Replace <source> with the network/host that should reach it.

firewalld

sudo firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="<source>" port port="3000" protocol="tcp" accept'

Allow TCP 3000 (Dev servers / Grafana) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 3000 accept

Allow TCP 3000 (Dev servers / Grafana). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 3000 -j ACCEPT

Allow TCP 3000 (Dev servers / Grafana). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-devserversgrafana-3000 --priority 1000 --access Allow --direction Inbound --protocol TCP --source-address-prefixes <source> --destination-port-ranges 3000

Inbound rule for 3000 (Dev servers / Grafana). Set <source> to a CIDR; lower priority number = higher precedence.

AWS Security Group

aws ec2 authorize-security-group-ingress --group-id <sg-id> --ip-permissions IpProtocol=tcp,FromPort=3000,ToPort=3000,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 3000 (Dev servers / Grafana). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-devserversgrafana-3000 --direction=INGRESS --action=ALLOW --rules=tcp:3000 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 3000 (Dev servers / Grafana). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow Dev servers / Grafana 3000/TCP" dir=in action=allow protocol=TCP localport=3000 remoteip=<source>

Inbound TCP 3000 (Dev servers / Grafana). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow Dev servers / Grafana 3000/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 3000 -RemoteAddress <source>

Inbound TCP 3000 (Dev servers / Grafana). Replace <source> with a host or subnet.

Rules are generated only for transports marked active for this port. They default to an inbound allow with an explicit source placeholder — never any. Review direction, scope, and rule precedence before applying in production.