What does the netstat command do?
The netstat command is used to display various network-related information. The netstat command can display network connections, routing tables and network interface information, allowing users to know which network connections are running. The syntax is "netstat [-a][-e][-n][-o][-p Protocol] [-r][-s][Interval][1]"; if used without parameters, netstat displays active TCP connections.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
The netstat command is used to display various network-related information.
The function of the netstat command is to display network connections, routing tables and network interface information, allowing users to know which network connections are running. If used without parameters, netstat displays active TCP connections.

Format of netstat command
The general format of this command is:
netstat [-a][-e][-n][-o][-p Protocol][-r][-s][Interval][1]
Column header:
Name The name of the interface
Mtu The maximum transmission unit of the interface
Net/Dest The interface is located Network
Address IP address of the interface
Ipkts Number of packets received
Ierrs Number of packets received corrupted
Opkts Number of packets sent
Oeers Number of packets sent corrupted
Collisions The number of network conflicts recorded by this interface
How the netstat command works
From Overall, the output results of netstat can be divided into two parts: one is Active Internet connections, called active TCP connections, where "Recv-Q" and "Send-Q" refer to are the receive queue and the send queue. These numbers should generally be 0. If not it means packages are piling up in the queue. This situation can only be seen in very rare cases.
The other is Active UNIX domain sockets, called active Unix domain sockets (the same as network sockets, but can only be used for local communication, and the performance can be doubled).
Recommended related articles: linux tutorial
The above is the detailed content of What does the netstat command do?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
How to install software on Linux using the terminal?
Aug 02, 2025 pm 12:58 PM
There are three main ways to install software on Linux: 1. Use a package manager, such as apt, dnf or pacman, and then execute the install command after updating the source, such as sudoaptininstallcurl; 2. For .deb or .rpm files, use dpkg or rpm commands to install, and repair dependencies when needed; 3. Use snap or flatpak to install applications across platforms, such as sudosnapinstall software name, which is suitable for users who are pursuing version updates. It is recommended to use the system's own package manager for better compatibility and performance.
The Ultimate Guide to High-Performance Gaming on Linux
Aug 03, 2025 am 05:51 AM
ChoosePop!_OS,Ubuntu,NobaraLinux,orArchLinuxforoptimalgamingperformancewithminimaloverhead.2.InstallofficialNVIDIAproprietarydriversforNVIDIAGPUs,ensureup-to-dateMesaandkernelversionsforAMDandIntelGPUs.3.EnabletheperformanceCPUgovernor,usealow-latenc
What are the main pros and cons of Linux vs. Windows?
Aug 03, 2025 am 02:56 AM
Linux is suitable for old hardware, has high security and is customizable, but has weak software compatibility; Windows software is rich and easy to use, but has high resource utilization. 1. In terms of performance, Linux is lightweight and efficient, suitable for old devices; Windows has high hardware requirements. 2. In terms of software, Windows has wider compatibility, especially professional tools and games; Linux needs to use tools to run some software. 3. In terms of security, Linux permission management is stricter and updates are convenient; although Windows is protected, it is still vulnerable to attacks. 4. In terms of difficulty of use, the Linux learning curve is steep; Windows operation is intuitive. Choose according to requirements: choose Linux with performance and security, and choose Windows with compatibility and ease of use.
Understanding RAID Configurations on a Linux Server
Aug 05, 2025 am 11:50 AM
RAIDimprovesstorageperformanceandreliabilityonLinuxserversthroughvariousconfigurations;RAID0offersspeedbutnoredundancy;RAID1providesmirroringforcriticaldatawith50�pacityloss;RAID5supportssingle-drivefailuretoleranceusingparityandrequiresatleastthre
Linux how to enable and disable services at boot
Aug 08, 2025 am 10:23 AM
To manage the startup of Linux services, use the systemctl command. 1. Check the service status: systemctlstatus can check whether the service is running, enabled or disabled. 2. Enable the service startup: sudosystemctlenable, such as sudosystemctlenablenginx. If it is started at the same time, use sudosystemctlenable--nownginx. 3. Disable the service startup: sudosystemctldisable, such as sudosystemctldisablecups. If it is stopped at the same time, use sudosystemctldisabl
Linux how to list all running processes
Aug 08, 2025 am 06:42 AM
Usepsauxforacompletesnapshotofallrunningprocesses,showingdetailedinformationlikeUSER,PID,CPU,andmemoryusage.2.Usetoporhtopforreal-timemonitoringofprocesseswithdynamicupdates,wherehtopoffersamoreintuitiveinterface.3.UsepgreporpidoftoquicklyfindthePIDs
How to clean up your Linux system
Aug 22, 2025 am 07:42 AM
Removeunusedpackagesanddependencieswithsudoaptautoremove,cleanpackagecacheusingsudoaptcleanorautoclean,andremoveoldkernelsviasudoaptautoremove--purge.2.Clearsystemlogswithsudojournalctl--vacuum-time=7d,deletearchivedlogsin/var/log,andempty/tmpand/var
Linux how to view the contents of a file
Aug 19, 2025 pm 06:44 PM
ToviewfilecontentsinLinux,usedifferentcommandsbasedonyourneeds:1.Forsmallfiles,usecattodisplaytheentirecontentatonce,withcat-ntoshowlinenumbers.2.Forlargefiles,uselesstoscrollpagebypageorlinebyline,searchwith/search_term,andquitwithq.3.Usemoreforbasi


