Registered · Cross-platform

2628 DICT

TCP Yes
UDP
SCTP
DCCP

What it is

Dictionary Server Protocol.

When / why

Network dictionary lookups.

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 2628

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 2628

Allow TCP 2628 (DICT). 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="2628" protocol="tcp" accept'

Allow TCP 2628 (DICT) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 2628 accept

Allow TCP 2628 (DICT). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 2628 -j ACCEPT

Allow TCP 2628 (DICT). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-dict-2628 --priority 1000 --access Allow --direction Inbound --protocol TCP --source-address-prefixes <source> --destination-port-ranges 2628

Inbound rule for 2628 (DICT). 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=2628,ToPort=2628,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 2628 (DICT). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-dict-2628 --direction=INGRESS --action=ALLOW --rules=tcp:2628 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 2628 (DICT). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow DICT 2628/TCP" dir=in action=allow protocol=TCP localport=2628 remoteip=<source>

Inbound TCP 2628 (DICT). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow DICT 2628/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 2628 -RemoteAddress <source>

Inbound TCP 2628 (DICT). 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.