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Port 695 (ieee-mms-ssl)

IANA assigns port 695 to ieee-mms-ssl: IEEE-MMS-SSL.

Well-known (system) port, 0-1023 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ieee-mms-ssl TCP IEEE-MMS-SSL Curtis Anderson 2 -
ieee-mms-ssl UDP IEEE-MMS-SSL Curtis Anderson 2 -

Check what is listening on port 695

Linux: is anything listening on TCP 695?
sudo ss -tlnp 'sport = :695'
Linux: UDP 695
sudo ss -ulnp 'sport = :695'
Linux / macOS: which process owns the port
sudo lsof -nP -i :695
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':695 '
Windows (Command Prompt)
netstat -ano | findstr :695
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 695 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 695
From Windows
Test-NetConnection HOST -Port 695
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 695

Block port 695 in the firewall

ufw
sudo ufw deny 695/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 695 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 695 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 695' -Direction Inbound -Protocol TCP -LocalPort 695 -Action Block
ufw
sudo ufw deny 695/udp
iptables
sudo iptables -A INPUT -p udp --dport 695 -j DROP
nftables
sudo nft add rule inet filter input udp dport 695 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 695' -Direction Inbound -Protocol UDP -LocalPort 695 -Action Block

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