Registered · Cross-platform

8243 Apache Synapse HTTPS

TCP Yes
UDP
SCTP
DCCP

What it is

WSO2/Synapse secure listener.

When / why

API gateway / ESB.

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.

Browse all ports →

Firewall rules for port 8243

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 8243

Allow TCP 8243 (Apache Synapse HTTPS). 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="8243" protocol="tcp" accept'

Allow TCP 8243 (Apache Synapse HTTPS) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 8243 accept

Allow TCP 8243 (Apache Synapse HTTPS). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 8243 -j ACCEPT

Allow TCP 8243 (Apache Synapse HTTPS). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-apachesynapsehttps-8243 --priority 1000 --access Allow --direction Inbound --protocol TCP --source-address-prefixes <source> --destination-port-ranges 8243

Inbound rule for 8243 (Apache Synapse HTTPS). 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=8243,ToPort=8243,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 8243 (Apache Synapse HTTPS). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-apachesynapsehttps-8243 --direction=INGRESS --action=ALLOW --rules=tcp:8243 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 8243 (Apache Synapse HTTPS). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow Apache Synapse HTTPS 8243/TCP" dir=in action=allow protocol=TCP localport=8243 remoteip=<source>

Inbound TCP 8243 (Apache Synapse HTTPS). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow Apache Synapse HTTPS 8243/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 8243 -RemoteAddress <source>

Inbound TCP 8243 (Apache Synapse HTTPS). 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.