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// VPN, tunnels & proxies

Port 1078: Avocent Proxy Protocol

Port 1078 is assigned by IANA to avocent-proxy (Avocent Proxy Protocol).

1078

How avocent-proxy works

VPN, tunnels & proxies
yougatewayavocent-proxy yougatewayavocent-proxy

Traffic is wrapped in a tunnel between the two ends, so the network in between only sees the tunnel.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
01 Security

Is port 1078 dangerous?

We have no specific security note for port 1078. Its risk depends on the program actually listening on it. General advice for vpn, tunnels & proxies services:

  • Patch VPN gateways quickly: they are a top initial access target.
  • Use certificates or MFA rather than shared secrets.
  • Investigate unexpected tunnels and proxies: they are also attacker tools.
02 Registry

IANA registry entries for port 1078

ServicePortTransportDescriptionReferenceUpdated
avocent-proxy 1078 TCP, UDP Avocent Proxy Protocol - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1078, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1078'      # process listening on 1078
sudo lsof -nP -i :1078

macOS

sudo lsof -nP -i :1078

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1078 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1078
netstat -ano | findstr :1078

From another machine

nmap -p 1078 -sV <host>
sudo nmap -sU -p 1078 <host>
nc -zv <host> 1078

Block it in the firewall

sudo ufw deny 1078/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1078" -Direction Inbound -LocalPort 1078 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1078 used for?

Port 1078 is assigned by IANA to avocent-proxy (Avocent Proxy Protocol).

Is port 1078 TCP or UDP?

Port 1078 is registered for TCP and UDP.

Is it safe to open port 1078?

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. Patch VPN gateways quickly: they are a top initial access target.

How do I check if port 1078 is open?

On Linux run "ss -ltnup 'sport = :1078'", on macOS "lsof -nP -i :1078", and on Windows "netstat -ano | findstr :1078" to see the local process. From another machine, "nmap -p 1078 <host>" shows whether it is reachable.

05 Related

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