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Port 1122 (availant-mgr)

IANA assigns port 1122 to availant-mgr.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
availant-mgr TCP availant-mgr Steven Pelletier -
availant-mgr UDP availant-mgr Steven Pelletier -

Check what is listening on port 1122

Linux: is anything listening on TCP 1122?
sudo ss -tlnp 'sport = :1122'
Linux: UDP 1122
sudo ss -ulnp 'sport = :1122'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1122
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1122 '
Windows (Command Prompt)
netstat -ano | findstr :1122
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1122 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1122
From Windows
Test-NetConnection HOST -Port 1122
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1122

Block port 1122 in the firewall

ufw
sudo ufw deny 1122/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1122 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1122 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1122' -Direction Inbound -Protocol TCP -LocalPort 1122 -Action Block
ufw
sudo ufw deny 1122/udp
iptables
sudo iptables -A INPUT -p udp --dport 1122 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1122 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1122' -Direction Inbound -Protocol UDP -LocalPort 1122 -Action Block

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