HTTPfy

Port 6390 (metaedit-ws)

IANA assigns port 6390 to metaedit-ws: MetaEdit+ WebService API.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
metaedit-ws TCP MetaEdit+ WebService API Steven Kelly -
metaedit-ws UDP MetaEdit+ WebService API Steven Kelly -

Registry dates for this port: registered 2007-11-12.

Check what is listening on port 6390

Linux: is anything listening on TCP 6390?
sudo ss -tlnp 'sport = :6390'
Linux: UDP 6390
sudo ss -ulnp 'sport = :6390'
Linux / macOS: which process owns the port
sudo lsof -nP -i :6390
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':6390 '
Windows (Command Prompt)
netstat -ano | findstr :6390
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 6390 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 6390
From Windows
Test-NetConnection HOST -Port 6390
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 6390

Block port 6390 in the firewall

ufw
sudo ufw deny 6390/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 6390 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 6390 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 6390' -Direction Inbound -Protocol TCP -LocalPort 6390 -Action Block
ufw
sudo ufw deny 6390/udp
iptables
sudo iptables -A INPUT -p udp --dport 6390 -j DROP
nftables
sudo nft add rule inet filter input udp dport 6390 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 6390' -Direction Inbound -Protocol UDP -LocalPort 6390 -Action Block

Related ports

6382metatude-mds6389clariion-evr016417faxcomservice6418syserverremote

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