HTTPfy

Port 3655 (abatemgr)

IANA assigns port 3655 to abatemgr: ActiveBatch Exec Agent.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
abatemgr TCP ActiveBatch Exec Agent - -
abatemgr UDP ActiveBatch Exec Agent - -

Check what is listening on port 3655

Linux: is anything listening on TCP 3655?
sudo ss -tlnp 'sport = :3655'
Linux: UDP 3655
sudo ss -ulnp 'sport = :3655'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3655
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3655 '
Windows (Command Prompt)
netstat -ano | findstr :3655
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3655 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3655
From Windows
Test-NetConnection HOST -Port 3655
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3655

Block port 3655 in the firewall

ufw
sudo ufw deny 3655/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3655 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3655 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3655' -Direction Inbound -Protocol TCP -LocalPort 3655 -Action Block
ufw
sudo ufw deny 3655/udp
iptables
sudo iptables -A INPUT -p udp --dport 3655 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3655 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3655' -Direction Inbound -Protocol UDP -LocalPort 3655 -Action Block

Related ports

3653tsp3654vaprtm3656abatjss3657immedianet-bcn

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