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Port 27000 Details
known port assignments and vulnerabilities
threat/application/port search:
| Port(s) |
Protocol |
Service |
Details |
Source |
| 27000 |
tcp,udp |
games |
id Software's QuakeWorld master server
FLEXlm (Network License Manager) uses ports 27000-27009 tcp.
Autodesk Network License Manager (adskflex.exe) also needs port 2080 tcp in addition to 27000-27009.
Citrix License Server uses ports 7279 and 27000 TCP.
Ports 27000+ are used by some online games:
Team Fortress 2, Day of Defeat, Counter Strike use ports 27000-27015
Left 4 Dead 2 (Valve software) uses ports 27000-27040
Vindictus MMORPG (devCAT/Nexon) uses ports 27000-27025, 36567, and 47611 tcp/udp
Steam (Valve gaming platform) uses these ports:
27000-27015 udp (Steam client game client traffic)
27015-27030 tcp/udp (typically matchmaking and HLTV, also used to download Steam content)
27031 udp, 27036 tcp/udp, and 27037 tcp (incoming for in-home streaming)
3478 udp, 4379 udp, 4380 udp (outbound - Steamworks P2P networking and voice chat)
4380 udp (Steam client) |
SG
|
| 27000-27050 |
tcp,udp |
games |
Ports 27000 to 27050 are typically used by some online games.
Steam (Valve gaming platform) uses these ports:
27000-27015 udp (Steam client game client traffic)
27015-27030 tcp/udp (typically matchmaking and HLTV, also used to download Steam content)
27031 udp, 27036 tcp/udp, and 27037 tcp (incoming for in-home streaming)
3478 udp, 4379 udp, 4380 udp (outbound - Steamworks P2P networking and voice chat)
4380 udp (Steam client) |
SG
|
| 27000-27006 |
udp |
|
id Software's QuakeWorld master server (unofficial) |
Wikipedia
|
| 27000 |
tcp |
flex-lm |
FlexLM (1-10) |
SANS
|
| 1200,27000-27015 |
udp |
applications |
Counter Strike |
Portforward
|
| 1200,27000-27015 |
udp |
applications |
Day of Defeat Source |
Portforward
|
| 1200,27000-27015 |
udp |
applications |
Half Life 2 Steam |
Portforward
|
| 1200,27000-27015 |
udp |
applications |
Half Life Steam |
Portforward
|
| 8880-8890, 9961, 17475, 27000-30000 |
udp |
applications |
Test Drive Unlimited |
Portforward
|
| 6667, 9961, 17475, 27000-30000 |
tcp |
applications |
Test Drive Unlimited |
Portforward
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| 27000 |
tcp |
flexlm0 |
FlexLM license manager additional ports |
Nmap
|
| 27000 |
tcp,udp |
quakeworld |
QuakeWorld Master Server |
Neophasis
|
| 27000 |
tcp,udp |
threat |
May be used as part of a Quake related game. |
Bekkoame
|
| 27000 |
tcp,udp |
flex-lm |
FLEX LM (1-10) |
Bekkoame
|
| 27000-27009 |
tcp,udp |
flex-lm |
FLEX LM (1-10), modified: 2018-02-15 |
IANA
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15 records found
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jump to:
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Related ports: 7279 27001 27002 27003 27004 27005 27006 27007 27008 27009 36567 47611
« back to SG Ports
External Resources
SANS ISC: port 27000
Notes:
Port numbers in computer networking represent communication endpoints. Ports are unsigned 16-bit integers (0-65535) that identify
a specific process, or network service. IANA is responsible for internet protocol resources, including the registration of commonly
used port numbers for well-known internet services.
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.
TCP ports use the Transmission Control Protocol, the most commonly used protocol
on the Internet and any TCP/IP network. TCP enables two hosts
to establish a connection and exchange streams of data. TCP guarantees delivery of data
and that packets will be delivered in the same order in which they were sent.
Guaranteed communication/delivery is the key difference between TCP and UDP.
UDP ports use the Datagram Protocol. Like TCP, UDP is used in combination with IP (the Internet Protocol)
and facilitates the transmission of datagrams from one computer to applications on another computer,
but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received
the message to process any errors and verify correct delivery. UDP is often used with time-sensitive
applications, such as audio/video streaming and realtime gaming, where dropping some packets is preferable to waiting for delayed data.
When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them.
This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command.
We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software.
For more detailed and personalized help please use our forums.
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