HTTPfy

Port 2479 (ssm-els)

IANA assigns port 2479 to ssm-els: SecurSight Event Logging Server (SSL).

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ssm-els TCP SecurSight Event Logging Server (SSL) John Linn -
ssm-els UDP SecurSight Event Logging Server (SSL) John Linn -

Check what is listening on port 2479

Linux: is anything listening on TCP 2479?
sudo ss -tlnp 'sport = :2479'
Linux: UDP 2479
sudo ss -ulnp 'sport = :2479'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2479
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2479 '
Windows (Command Prompt)
netstat -ano | findstr :2479
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2479 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2479
From Windows
Test-NetConnection HOST -Port 2479
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2479

Block port 2479 in the firewall

ufw
sudo ufw deny 2479/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2479 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2479 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2479' -Direction Inbound -Protocol TCP -LocalPort 2479 -Action Block
ufw
sudo ufw deny 2479/udp
iptables
sudo iptables -A INPUT -p udp --dport 2479 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2479 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2479' -Direction Inbound -Protocol UDP -LocalPort 2479 -Action Block

Related ports

2477ssm-cvs2478ssm-cssps2480powerexchange2481giop

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