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Port 2393 (ms-olap1)

IANA assigns port 2393 to ms-olap1: MS OLAP 1.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ms-olap1 TCP MS OLAP 1 - -
ms-olap1 UDP MS OLAP 1 - -

Check what is listening on port 2393

Linux: is anything listening on TCP 2393?
sudo ss -tlnp 'sport = :2393'
Linux: UDP 2393
sudo ss -ulnp 'sport = :2393'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2393
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2393 '
Windows (Command Prompt)
netstat -ano | findstr :2393
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2393 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2393
From Windows
Test-NetConnection HOST -Port 2393
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2393

Block port 2393 in the firewall

ufw
sudo ufw deny 2393/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2393 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2393 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2393' -Direction Inbound -Protocol TCP -LocalPort 2393 -Action Block
ufw
sudo ufw deny 2393/udp
iptables
sudo iptables -A INPUT -p udp --dport 2393 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2393 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2393' -Direction Inbound -Protocol UDP -LocalPort 2393 -Action Block

Related ports

23913com-net-mgmt2392tacticalauth2394ms-olap22395lan900-remote, lan900_remote

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