Loading

×Sorry to interrupt
CSS Error

Refresh

Cookie Preference Center

General Information on cookies

When you visit our website, we use cookies to ensure that we give you the best experience. This information does not usually directly identify you, but it can give you a more personalized web experience. Because we respect your right to privacy, you can choose not to allow some types of cookies by clicking on the different category headings to find out more and change your settings. However, blocking some types of cookies may impact your experience on the site and the services we are able to offer. Further information can be found in our

Cookie Policy.

Strictly Necessary

Strictly Necessary

Always Active

Strictly Necessary

Strictly necessary cookies are always enabled since they are essential for our website to function. They enable core functionality such as security, network management, and website accessibility. You can set your browser to block or alert you about these cookies, but this may affect how the website functions. For more information please visit www.aboutcookies.org or www.allaboutcookies.org.

Cookie Details‎

Performance

Performance

Performance

Performance cookies are used to analyze the user experience to improve our website by collecting and reporting information on how you use it. They allow us to know which pages are the most and least popular, see how visitors move around the site, optimize our website and make it easier to navigate.

Cookie Details‎

Please confirm your settings by refreshing the page.

Functional

Functional

Functional

Functional cookies help us keep track of your past browsing choices so we can improve usability and customize your experience. These cookies enable the website to remember your preferred settings, language preferences, location and other customizable elements such as font or text size. If you do not allow these cookies, then some or all of these services may not function properly.

Cookie Details‎

Advertising

Advertising

Advertising

Advertising cookies are used to send you relevant advertising and promotional information. They may be set through our site by third parties to build a profile of your interests and show you relevant advertisements on other sites. These cookies do not directly store personal information, but their function is based on uniquely identifying your browser and internet device.

Cookie Details‎

Advertising Cookies

Consent Leg.Interest

Select All Vendors

Select All Vendors

Select All Hosts

Select All

Clear Filters

Information storage and access

Apply

Confirm My Choices Reject All Allow All

Skip to main content

Products and Accounts

Support

Knowledge

Communities

Success

Learning

My Subscriptions

Loading

Knowledge Base

Determining if a port is in use by an application or process on a virtual machine (1003971)

Last Updated: 3/20/2024Categories: How toTotal Views: 203963Language:
Chinese (Simplified)JapaneseEnglish

22 like this article

Subscribe to get an email
newsletter with new updates

22 people found this helpful Please provide article feedback:

Learn how VMware Skyline Advisor and Skyline Health Diagnostics work together to provide proactive intelligence and self-service log analysis.

Use Skyline Advisor to avoid issues before they occur across VCF, vSphere, vSAN, NSX, vROps & Horizon. Skyline Findings are based on top KBs, VMSAs/CVEs and design best practices.

Use Skyline Health Diagnostics to root cause vSphere & vSAN logs when an issue occurs. Skyline Health Diagnostic Findings are based on top KBs and VMSA/CVEs. You can use the Skyline Health Diagnostics tool in online or offline mode.

If you require additional help from technical support, please use Skyline Advisor to initiate a Log Assist to reduce time to upload logs. TSEs can also initiate logs to reduce effort.

Purpose

For troubleshooting purposes, it may be necessary to check if a port is already in use by a different application on your servers.

This article provides steps to use the Netstat and lsof utilities to check the ports in use and view the application that is utilizing the port.

Port already in use when installing VMware vCenter Server.

Resolution

Checking port usage from Windows

To check the listening ports and applications with Netstat:

Open a command prompt. For more information, see Opening a command or shell prompt (1003892).

Run this command:

netstat -bano

You see output similar to:

C:\netstat -bano | more

Proto Local Address Foreign Address State PID
TCP 0.0.0.0:port 0.0.0.0:0 LISTENING process ID
[process.exe]
TCP 0.0.0.0:port 0.0.0.0:0 LISTENING process ID
[process.exe]
...

where:

process is the name of the application

port is the port that is being used

process ID is the process ID of the process

If you see Can not obtain ownership information instead of the [process.exe] entry, you can find more information in the Windows Task Manager using the process ID:

Start Task Manager by pressing Ctrl+Shift+Esc

Click on the Processes tab and click View then Select Columns...

In the Select Process Page Columns window, click PID (Process Identifier), then click OK

You can then sort based on the PID column and find the PID number returned from the previous command

The output shows the processes that are listening, as well as the name of the process and process ID. When reviewing the information, only look at the ports that are listening to ensure that you find the correct application that is listening on that port. If you do not see any process listening for a port, that port is free to be utilized.

When you determine what is listening on the port, you must decide what action needs to be taken to resolve the conflict. This involves stopping a service or uninstalling the application that is utilizing the port.

For a list of ports used by VMware products, see TCP and UDP Ports required to access VMware vCenter Server, VMware ESXi and ESX hosts, and other network components (1012382).

Checking port usage from Linux / Mac OS / ESX

Note: Mac OS and certain distributions of Linux do not support listing the process name with Netstat. If you are using Mac OS or are seeing errors on your distribution of Linux, follow the lsof instructions below.

To check the listening ports and applications with Netstat:

Open a shell prompt. For more information, see Opening a command or shell prompt (1003892).

In the shell prompt window, run this command:

netstat -pan

You see output similar to:

[root@server]# netstat -pan

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:port 0.0.0.0:* LISTEN process ID/process
tcp 0 0 0.0.0.0:port 0.0.0.0:* LISTEN process ID/process
...

where:

process is the name of the application

port is the port that is being used

process ID is the process ID of the process

To check the listening ports and applications with lsof:

Open a shell prompt. For more information, see Opening a command or shell prompt (1003892).

In the shell prompt window, run this command:

lsof -i -P -n

You see output similar to:

[root@server]# lsof -i -P -n
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
process process ID root 3u IPv4 3011 TCP *:port (LISTEN)
process process ID root 3u IPv4 3011 TCP *:port (LISTEN)
...

where:

process is the name of the application

port is the port that is being used

process ID is the process ID of the process

The output from either of these two commands shows the processes that are listening, the name of the process, and the process ID. When reviewing the information it is important to only look at the ports that are listening to ensure that you find the correct application that is listening on that port. If you do not see any process listening for a port, than this means that it is free to be utilized.

When you determine what is listening on the port, you must decide what action needs to be taken to resolve the conflict. This involves stopping a service or uninstalling the application that is utilizing the port.

For a list of ports used by VMware products, see TCP and UDP Ports required to access VMware vCenter Server, VMware ESXi and ESX hosts, and other network components (1012382).

Related Information

Opening a command or shell prompt
TCP and UDP Ports required to access VMware vCenter Server, VMware ESXi and ESX hosts, and other network components
确定端口是否在使用中
ポートが使用中かどうかを調べる

Detectable by VMware SkylineTM

Actions

Copy

link to clipboard
copied!

Print

Language:
Chinese (Simplified)JapaneseEnglish

Attachments

Additional Resources

KB
•
End Of General Availability of the Free vSphere Hypervisor (ESXi 7.x and 8.x) (2107518)

KB
•
Download and Install VMware Fusion (2014097)

Results 1-2 of 2

Ask The Community

Get answers quickly from VMware experts in the community

Post Subject

CONTINUE IN COMMUNITIES

Related Products:

VMware Workstation

VMware VirtualCenter

VMware Server

VMware Fusion

VMware ESX Server

VMware Converter

Related Versions:

Take Our Survey

Was this article helpful?

YES

NO

Copyright © 2005-2024 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.

Terms of Use

Your California Privacy Rights

Privacy

Accessibility

Cookie Settings

Support Assistant