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Port 9618 (condor)

IANA assigns port 9618 to condor: Condor Collector Service.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
condor TCP Condor Collector Service Todd Tannenbaum -
condor UDP Condor Collector Service Todd Tannenbaum -

Registry dates for this port: registered 2008-04-03.

Check what is listening on port 9618

Linux: is anything listening on TCP 9618?
sudo ss -tlnp 'sport = :9618'
Linux: UDP 9618
sudo ss -ulnp 'sport = :9618'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9618
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':9618 '
Windows (Command Prompt)
netstat -ano | findstr :9618
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9618 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 9618
From Windows
Test-NetConnection HOST -Port 9618
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 9618

Block port 9618 in the firewall

ufw
sudo ufw deny 9618/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 9618 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 9618 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 9618' -Direction Inbound -Protocol TCP -LocalPort 9618 -Action Block
ufw
sudo ufw deny 9618/udp
iptables
sudo iptables -A INPUT -p udp --dport 9618 -j DROP
nftables
sudo nft add rule inet filter input udp dport 9618 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 9618' -Direction Inbound -Protocol UDP -LocalPort 9618 -Action Block

Related ports

9616erunbook-agent, erunbook_agent9617erunbook-server, erunbook_server9628odbcpathway9629uniport

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