- Require TLS and authenticated submission.
- Make sure the server is not an open relay.
- Publish SPF, DKIM and DMARC for the domain.
Port 5196: The protocol is used by two programs that exchange "table" data used in the AMPL modeling language
Port 5196 is assigned by IANA to ampl-tableproxy (The protocol is used by two programs that exchange "table" data used in the AMPL modeling language).
5196
How ampl-tableproxy works
EmailMail servers hand messages to each other over port 5196, one hop at a time, until the recipient's server.
- Transport
- TCP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Registered (1024-49151)
- Category
Is port 5196 dangerous?
We have no specific security note for port 5196. Its risk depends on the program actually listening on it. General advice for email services:
IANA registry entries for port 5196
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| ampl-tableproxy | 5196 | TCP | The protocol is used by two programs that exchange "table" data used in the AMPL modeling language | - | 2012-05-25 |
| - | 5196 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 5196, and is it reachable?
Linux
sudo ss -ltnup 'sport = :5196' # process listening on 5196
sudo lsof -nP -i :5196macOS
sudo lsof -nP -i :5196
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5196 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 5196 netstat -ano | findstr :5196
From another machine
nmap -p 5196 -sV <host> nc -zv <host> 5196
Block it in the firewall
sudo ufw deny 5196/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 5196" -Direction Inbound -LocalPort 5196 -Protocol TCP -Action Block # Windows
What is port 5196 used for?
Port 5196 is assigned by IANA to ampl-tableproxy (The protocol is used by two programs that exchange "table" data used in the AMPL modeling language).
Is port 5196 TCP or UDP?
Port 5196 is registered for TCP.
Is it safe to open port 5196?
It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Require TLS and authenticated submission.
How do I check if port 5196 is open?
On Linux run "ss -ltnup 'sport = :5196'", on macOS "lsof -nP -i :5196", and on Windows "netstat -ano | findstr :5196" to see the local process. From another machine, "nmap -p 5196 <host>" shows whether it is reachable.