Registered · Linux/Unix

4506 SaltStack master (return)

TCP Unofficial
UDP
SCTP
DCCP

What it is

Salt minion return channel.

When / why

Config management return traffic.

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.

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Firewall rules for port 4506

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 4506

Allow TCP 4506 (SaltStack master (return)). 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="4506" protocol="tcp" accept'

Allow TCP 4506 (SaltStack master (return)) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 4506 accept

Allow TCP 4506 (SaltStack master (return)). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 4506 -j ACCEPT

Allow TCP 4506 (SaltStack master (return)). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-saltstackmasterreturn-4506 --priority 1000 --access Allow --direction Inbound --protocol TCP --source-address-prefixes <source> --destination-port-ranges 4506

Inbound rule for 4506 (SaltStack master (return)). 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=4506,ToPort=4506,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 4506 (SaltStack master (return)). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-saltstackmasterreturn-4506 --direction=INGRESS --action=ALLOW --rules=tcp:4506 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 4506 (SaltStack master (return)). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow SaltStack master (return) 4506/TCP" dir=in action=allow protocol=TCP localport=4506 remoteip=<source>

Inbound TCP 4506 (SaltStack master (return)). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow SaltStack master (return) 4506/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 4506 -RemoteAddress <source>

Inbound TCP 4506 (SaltStack master (return)). 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.