- Close the port if nothing on the host needs it.
- Identify the process that listens on it (commands below) before opening it in a firewall.
- Expose a service only to the networks that use it.
Port 5103: Actifio C2C
Port 5103 is assigned by IANA to actifio-c2c (Actifio C2C).
5103
How actifio-c2c works
Other servicesThe client sends a request to port 5103 and the actifio-c2c service answers.
- 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
- Other services
Is port 5103 dangerous?
We have no specific security note for port 5103. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 5103
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| actifio-c2c | 5103 | TCP | Actifio C2C | - | 2010-06-18 |
| - | 5103 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 5103, and is it reachable?
Linux
sudo ss -ltnup 'sport = :5103' # process listening on 5103
sudo lsof -nP -i :5103macOS
sudo lsof -nP -i :5103
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5103 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 5103 netstat -ano | findstr :5103
From another machine
nmap -p 5103 -sV <host> nc -zv <host> 5103
Block it in the firewall
sudo ufw deny 5103/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 5103" -Direction Inbound -LocalPort 5103 -Protocol TCP -Action Block # Windows
What is port 5103 used for?
Port 5103 is assigned by IANA to actifio-c2c (Actifio C2C).
Is port 5103 TCP or UDP?
Port 5103 is registered for TCP.
Is it safe to open port 5103?
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. Close the port if nothing on the host needs it.
How do I check if port 5103 is open?
On Linux run "ss -ltnup 'sport = :5103'", on macOS "lsof -nP -i :5103", and on Windows "netstat -ano | findstr :5103" to see the local process. From another machine, "nmap -p 5103 <host>" shows whether it is reachable.
Other other services ports
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp