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Port 2936 (otpatch)

IANA assigns port 2936 to otpatch: OTPatch.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
otpatch TCP OTPatch Brett Goldstein -
otpatch UDP OTPatch Brett Goldstein -

Check what is listening on port 2936

Linux: is anything listening on TCP 2936?
sudo ss -tlnp 'sport = :2936'
Linux: UDP 2936
sudo ss -ulnp 'sport = :2936'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2936
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2936 '
Windows (Command Prompt)
netstat -ano | findstr :2936
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2936 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2936
From Windows
Test-NetConnection HOST -Port 2936
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2936

Block port 2936 in the firewall

ufw
sudo ufw deny 2936/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2936 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2936 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2936' -Direction Inbound -Protocol TCP -LocalPort 2936 -Action Block
ufw
sudo ufw deny 2936/udp
iptables
sudo iptables -A INPUT -p udp --dport 2936 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2936 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2936' -Direction Inbound -Protocol UDP -LocalPort 2936 -Action Block

Related ports

29344-tieropmcli2935qtp2937pnaconsult-lm2938sm-pas-1

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