linux netstat（网络信息统计） 工具说明及使用方法（检验本机各端口的网络连接情况，显示网络连接路由表网络接口）
Posted Dontla
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了linux netstat（网络信息统计） 工具说明及使用方法（检验本机各端口的网络连接情况，显示网络连接路由表网络接口）相关的知识，希望对你有一定的参考价值。
文章目录
netstat 介绍
在Internet RFC标准中，Netstat的定义是： Netstat是在内核中访问网络连接状态及其相关信息的程序，它能提供TCP连接，TCP和UDP监听，进程内存管理的相关报告。
Netstat是控制台命令,是一个监控TCP/IP网络的非常有用的工具，它可以显示路由表、实际的网络连接以及每一个网络接口设备的状态信息。Netstat用于显示与IP、TCP、UDP和ICMP协议相关的统计数据，一般用于检验本机各端口的网络连接情况。
如果你的计算机有时候接收到的数据包导致出错数据或故障，你不必感到奇怪，TCP/IP可以容许这些类型的错误，并能够自动重发数据包。但如果累计的出错情况数目占到所接收的IP数据报相当大的百分比，或者它的数目正迅速增加，那么你就应该使用Netstat查一查为什么会出现这些情况了。
一般用netstat -an来显示所有连接的端口并用数字表示。
（我们海康摄像头启动hikflow_demo后，那么多TIME_WAIT的，老感觉有问题啊！）
# netstat -an
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:7681 0.0.0.0:* LISTEN
tcp 0 0 192.168.1.69:59240 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:45704 192.168.1.112:21 TIME_WAIT
tcp 0 0 192.168.1.69:59412 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59270 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59286 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59336 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59294 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59374 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59250 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59438 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:47818 192.168.1.112:22803 TIME_WAIT
tcp 0 0 192.168.1.69:60230 192.168.1.112:35579 TIME_WAIT
tcp 0 0 192.168.1.69:59324 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59236 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59370 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59472 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59328 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59448 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59284 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59454 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59428 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59344 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:45664 192.168.1.112:21 TIME_WAIT
tcp 0 0 192.168.1.69:36300 192.168.1.112:60645 TIME_WAIT
tcp 0 0 192.168.1.69:59356 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59348 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59256 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59394 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59312 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59230 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:45784 192.168.1.112:21 TIME_WAIT
tcp 0 0 192.168.1.69:59320 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59444 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59280 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59262 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59246 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59272 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59470 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59392 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59464 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59334 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59306 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59254 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59452 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:45824 192.168.1.112:21 TIME_WAIT
tcp 0 0 192.168.1.69:59352 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59242 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:45744 192.168.1.112:21 TIME_WAIT
tcp 0 0 192.168.1.69:59278 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59408 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59332 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59238 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59274 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59410 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59468 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59228 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59372 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59436 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59234 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59350 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59288 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59232 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59434 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59400 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59416 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59276 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59430 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59414 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59252 192.168.1.105:5555 TIME_WAIT
tcp 0 396 192.168.1.69:22 192.168.1.178:53396 ESTABLISHED
tcp 0 0 192.168.1.69:59368 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59268 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:45864 192.168.1.112:21 TIME_WAIT
tcp 0 0 192.168.1.69:59360 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59314 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59466 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:50368 192.168.1.112:52390 TIME_WAIT
tcp 0 0 192.168.1.69:59244 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59366 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59354 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59282 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59292 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59424 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:22 192.168.1.178:53440 ESTABLISHED
tcp 0 0 192.168.1.69:59380 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59302 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59404 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59402 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59318 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59474 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59446 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59308 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59386 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59384 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:35036 192.168.1.112:44052 TIME_WAIT
tcp 0 0 192.168.1.69:59406 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59326 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59266 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59432 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59450 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59330 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59440 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59364 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59358 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59264 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59460 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59398 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59310 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59362 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59316 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59322 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59342 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59376 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59422 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59346 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59456 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59304 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59426 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59442 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59296 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:47520 192.168.1.112:17454 TIME_WAIT
tcp 0 0 192.168.1.69:59388 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59248 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59390 192.168.1.105:5555 TIME_WAIT
tcp 0 0 192.168.1.69:59396 以上是关于linux netstat（网络信息统计） 工具说明及使用方法（检验本机各端口的网络连接情况，显示网络连接路由表网络接口）的主要内容，如果未能解决你的问题，请参考以下文章