Registered · Cross-platform

6432 PgBouncer

TCP Yes
UDP
SCTP
DCCP

What it is

PostgreSQL connection pooler.

When / why

Sits in front of 5432 to pool DB connections.

Protocol status detail

TransportStatusMeaning
TCP Yes Assigned by IANA and 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.

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Firewall rules for port 6432

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 6432

Allow TCP 6432 (PgBouncer). 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="6432" protocol="tcp" accept'

Allow TCP 6432 (PgBouncer) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 6432 accept

Allow TCP 6432 (PgBouncer). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 6432 -j ACCEPT

Allow TCP 6432 (PgBouncer). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-pgbouncer-6432 --priority 1000 --access Allow --direction Inbound --protocol TCP --source-address-prefixes <source> --destination-port-ranges 6432

Inbound rule for 6432 (PgBouncer). 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=6432,ToPort=6432,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 6432 (PgBouncer). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-pgbouncer-6432 --direction=INGRESS --action=ALLOW --rules=tcp:6432 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 6432 (PgBouncer). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow PgBouncer 6432/TCP" dir=in action=allow protocol=TCP localport=6432 remoteip=<source>

Inbound TCP 6432 (PgBouncer). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow PgBouncer 6432/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 6432 -RemoteAddress <source>

Inbound TCP 6432 (PgBouncer). 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.