HTTPfy

Port 2888 (spcsdlobby)

IANA assigns port 2888 to spcsdlobby: SPCSDLOBBY.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
spcsdlobby TCP SPCSDLOBBY Matthew Williams -
spcsdlobby UDP SPCSDLOBBY Matthew Williams -

Check what is listening on port 2888

Linux: is anything listening on TCP 2888?
sudo ss -tlnp 'sport = :2888'
Linux: UDP 2888
sudo ss -ulnp 'sport = :2888'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2888
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2888 '
Windows (Command Prompt)
netstat -ano | findstr :2888
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2888 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2888
From Windows
Test-NetConnection HOST -Port 2888
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2888

Block port 2888 in the firewall

ufw
sudo ufw deny 2888/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2888 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2888 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2888' -Direction Inbound -Protocol TCP -LocalPort 2888 -Action Block
ufw
sudo ufw deny 2888/udp
iptables
sudo iptables -A INPUT -p udp --dport 2888 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2888 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2888' -Direction Inbound -Protocol UDP -LocalPort 2888 -Action Block

Related ports

2886responselogic2887aironetddp2889rsom2890cspclmulti

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