HTTPfy

Port 5298 (presence)

IANA assigns port 5298 to presence: XMPP Link-Local Messaging.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
presence TCP XMPP Link-Local Messaging
Defined TXT keys: See http://www.xmpp.org/registrar/linklocal.html Eric St Onge -
presence UDP XMPP Link-Local Messaging
Defined TXT keys: See http://www.xmpp.org/registrar/linklocal.html Eric St Onge -

Registry dates for this port: registered 2008-01-14.

Check what is listening on port 5298

Linux: is anything listening on TCP 5298?
sudo ss -tlnp 'sport = :5298'
Linux: UDP 5298
sudo ss -ulnp 'sport = :5298'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5298
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5298 '
Windows (Command Prompt)
netstat -ano | findstr :5298
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5298 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5298
From Windows
Test-NetConnection HOST -Port 5298
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5298

Block port 5298 in the firewall

ufw
sudo ufw deny 5298/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5298 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5298 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5298' -Direction Inbound -Protocol TCP -LocalPort 5298 -Action Block
ufw
sudo ufw deny 5298/udp
iptables
sudo iptables -A INPUT -p udp --dport 5298 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5298 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5298' -Direction Inbound -Protocol UDP -LocalPort 5298 -Action Block

Related ports

5281undo-lm5282transmit-port5299nlg-data5300hacl-hb

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.