- 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 4428: OMV-Investigation Server-Client
Port 4428 is assigned by IANA to omviserver (OMV-Investigation Server-Client).
4428
How omviserver works
Other servicesThe client sends a request to port 4428 and the omviserver 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 4428 dangerous?
We have no specific security note for port 4428. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 4428
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| omviserver | 4428 | TCP | OMV-Investigation Server-Client | - | 2009-05-20 |
| - | 4428 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 4428, and is it reachable?
Linux
sudo ss -ltnup 'sport = :4428' # process listening on 4428
sudo lsof -nP -i :4428macOS
sudo lsof -nP -i :4428
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4428 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 4428 netstat -ano | findstr :4428
From another machine
nmap -p 4428 -sV <host> nc -zv <host> 4428
Block it in the firewall
sudo ufw deny 4428/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 4428" -Direction Inbound -LocalPort 4428 -Protocol TCP -Action Block # Windows
What is port 4428 used for?
Port 4428 is assigned by IANA to omviserver (OMV-Investigation Server-Client).
Is port 4428 TCP or UDP?
Port 4428 is registered for TCP.
Is it safe to open port 4428?
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 4428 is open?
On Linux run "ss -ltnup 'sport = :4428'", on macOS "lsof -nP -i :4428", and on Windows "netstat -ano | findstr :4428" to see the local process. From another machine, "nmap -p 4428 <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