Registered · Linux/Unix

19531 systemd-journal-gatewayd

TCP Unofficial
UDP No
SCTP
DCCP

What it is

systemd journal HTTP gateway.

When / why

Remote log access; restrict tightly.

Protocol status detail

TransportStatusMeaning
TCP Unofficial Not assigned by IANA, but standardized, specified, or widely used on this port.
UDP No Not assigned, standardized, or widely used on this port.
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 19531

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 19531

Allow TCP 19531 (systemd-journal-gatewayd). 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="19531" protocol="tcp" accept'

Allow TCP 19531 (systemd-journal-gatewayd) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 19531 accept

Allow TCP 19531 (systemd-journal-gatewayd). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 19531 -j ACCEPT

Allow TCP 19531 (systemd-journal-gatewayd). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-systemdjournalgatewayd-19531 --priority 1000 --access Allow --direction Inbound --protocol TCP --source-address-prefixes <source> --destination-port-ranges 19531

Inbound rule for 19531 (systemd-journal-gatewayd). 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=19531,ToPort=19531,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 19531 (systemd-journal-gatewayd). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-systemdjournalgatewayd-19531 --direction=INGRESS --action=ALLOW --rules=tcp:19531 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 19531 (systemd-journal-gatewayd). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow systemd-journal-gatewayd 19531/TCP" dir=in action=allow protocol=TCP localport=19531 remoteip=<source>

Inbound TCP 19531 (systemd-journal-gatewayd). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow systemd-journal-gatewayd 19531/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 19531 -RemoteAddress <source>

Inbound TCP 19531 (systemd-journal-gatewayd). 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.