Mac os 命令

Posted by Shen Chaoran on June 22, 2019

c安康nc# 查找端口占用

lsof

用默认用户（非root）登录终端，查看 88 端口占用情况，查不到，然后加 sudo 之后，就可以查到，因为 88 端口是被 root 占用的，所以普通用户查不到。

用法：

  • lsof -i:端口
  • lsof -i tcp:端口
(base) ➜  OGMS lsof -i:3000
COMMAND     PID        USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
SmartGate 39277 shenchaoran  187u  IPv4 0xb33e9d506a5ff057      0t0  TCP 10.64.114.42:56292->10.64.114.42:hbci (ESTABLISHED)
Google    39380 shenchaoran   57u  IPv4 0xb33e9d503503b6d7      0t0  TCP localhost:56258->localhost:hbci (CLOSE_WAIT)
Google    39380 shenchaoran   77u  IPv4 0xb33e9d505e83a3d7      0t0  TCP localhost:56266->localhost:hbci (CLOSE_WAIT)
Google    39380 shenchaoran   90u  IPv4 0xb33e9d503bb393d7      0t0  TCP localhost:56268->localhost:hbci (CLOSE_WAIT)
Google    39380 shenchaoran  101u  IPv4 0xb33e9d506d06cd57      0t0  TCP localhost:56290->localhost:hbci (ESTABLISHED)
Google    39380 shenchaoran  102u  IPv4 0xb33e9d50607ce057      0t0  TCP localhost:56270->localhost:hbci (CLOSE_WAIT)
Google    39380 shenchaoran  110u  IPv4 0xb33e9d503bcc1a57      0t0  TCP localhost:56272->localhost:hbci (CLOSE_WAIT)
Google    39380 shenchaoran  112u  IPv4 0xb33e9d50607cc3d7      0t0  TCP localhost:56274->localhost:hbci (CLOSE_WAIT)
(base) ➜  OGMS sudo lsof -i:3000
COMMAND     PID        USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
SmartGate 39277 shenchaoran  187u  IPv4 0xb33e9d506a5ff057      0t0  TCP 10.64.114.42:56292->10.64.114.42:hbci (ESTABLISHED)
Google    39380 shenchaoran   57u  IPv4 0xb33e9d503503b6d7      0t0  TCP localhost:56258->localhost:hbci (CLOSE_WAIT)
Google    39380 shenchaoran   77u  IPv4 0xb33e9d505e83a3d7      0t0  TCP localhost:56266->localhost:hbci (CLOSE_WAIT)
Google    39380 shenchaoran   90u  IPv4 0xb33e9d503bb393d7      0t0  TCP localhost:56268->localhost:hbci (CLOSE_WAIT)
Google    39380 shenchaoran  101u  IPv4 0xb33e9d506d06cd57      0t0  TCP localhost:56290->localhost:hbci (ESTABLISHED)
Google    39380 shenchaoran  102u  IPv4 0xb33e9d50607ce057      0t0  TCP localhost:56270->localhost:hbci (CLOSE_WAIT)
Google    39380 shenchaoran  110u  IPv4 0xb33e9d503bcc1a57      0t0  TCP localhost:56272->localhost:hbci (CLOSE_WAIT)
Google    39380 shenchaoran  112u  IPv4 0xb33e9d50607cc3d7      0t0  TCP localhost:56274->localhost:hbci (CLOSE_WAIT)
node      60925        root   26u  IPv4 0xb33e9d50601b1d57      0t0  TCP *:hbci (LISTEN)
node      60925        root   47u  IPv4 0xb33e9d50601b13d7      0t0  TCP localhost:hbci->localhost:56290 (ESTABLISHED)
node      60925        root   49u  IPv4 0xb33e9d50524f4057      0t0  TCP 10.64.114.42:hbci->10.64.114.42:56292 (ESTABLISHED)

netstat

在 linux 上面使用的方法通常为：netstat -nltp

-a (all)显示所有选项，默认不显示LISTEN相关 -t (tcp)仅显示tcp相关选项 -u (udp)仅显示udp相关选项 -n 拒绝显示别名，能显示数字的全部转化成数字。 -l 仅列出有在 Listen (监听) 的服務状态

-p 显示建立相关链接的程序名 -r 显示路由信息，路由表 -e 显示扩展信息，例如uid等 -s 按各个协议进行统计 -c 每隔一个固定时间，执行该netstat命令

在Mac上正确使用的方法是：即-f需要加上地址族，-p需要加上协议TCP或者UDP等

netstat [-AaLlnW] [-f address_family | -p protocol]
netstat [-gilns] [-v] [-f address_family] [-I interface]
netstat -i | -I interface [-w wait] [-c queue] [-abdgqRtS]
netstat -s [-s] [-f address_family | -p protocol] [-w wait]
netstat -i | -I interface -s [-f address_family | -p protocol]
netstat -m [-m]
netstat -r [-Aaln] [-f address_family]
netstat -rs [-s]
  • 如果需要查询inet：netstat -anvf inet
  • 如果需要查询TCP：netstat -anvp tcp
  • 如果需要查询UDP：netstat -anvp udp
(base) ➜  OGMS netstat -anvp tcp | grep 3000
tcp4       0      0  10.64.114.42.3000      10.64.114.42.56292     ESTABLISHED 407647 146988  60925      0 0x0182 0x0000010c
tcp4       0      0  10.64.114.42.56292     10.64.114.42.3000      ESTABLISHED 407938 146988  39277      0 0x0102 0x00000100
tcp4       0      0  127.0.0.1.3000         127.0.0.1.56290        ESTABLISHED 407546 146988  60925      0 0x0182 0x0000010c
tcp4       0      0  127.0.0.1.56290        127.0.0.1.3000         ESTABLISHED 407938 146988  39380      0 0x0102 0x00000008
tcp4       0      0  127.0.0.1.3000         127.0.0.1.56274        FIN_WAIT_2  407347 146988  60925      0 0x21b1 0x00000104
tcp4       0      0  127.0.0.1.56274        127.0.0.1.3000         CLOSE_WAIT  391642 146988  39380      0 0x0122 0x00000008
tcp4       0      0  127.0.0.1.3000         127.0.0.1.56272        FIN_WAIT_2  407824 146988  60925      0 0x21b1 0x00000104
tcp4       0      0  127.0.0.1.56272        127.0.0.1.3000         CLOSE_WAIT  405588 146988  39380      0 0x0122 0x00000008
tcp4       0      0  127.0.0.1.3000         127.0.0.1.56270        FIN_WAIT_2  407347 146988  60925      0 0x21b1 0x00000104
tcp4       0      0  127.0.0.1.56270        127.0.0.1.3000         CLOSE_WAIT  391355 146988  39380      0 0x0122 0x00000008
tcp4       0      0  127.0.0.1.3000         127.0.0.1.56268        FIN_WAIT_2  406871 146988  60925      0 0x21b1 0x00000104
tcp4       0      0  127.0.0.1.56268        127.0.0.1.3000         CLOSE_WAIT  363495 146988  39380      0 0x0122 0x00000008
tcp4       0      0  127.0.0.1.3000         127.0.0.1.56266        FIN_WAIT_2  406834 146988  60925      0 0x21b1 0x00000104
tcp4       0      0  127.0.0.1.56266        127.0.0.1.3000         CLOSE_WAIT  332394 146988  39380      0 0x0122 0x00000008
tcp4       0      0  127.0.0.1.3000         127.0.0.1.56258        FIN_WAIT_2  406349 146988  60925      0 0x21b1 0x00000104
tcp4       0      0  127.0.0.1.56258        127.0.0.1.3000         CLOSE_WAIT  338058 146988  39380      0 0x0122 0x00000008
tcp4       0      0  *.3000                 *.*                    LISTEN      131072 131072  60925      0 0x0180 0x00000106

ssh

sudo launchctl stop com.openssh.sshd
sudo launchctl start com.openssh.sshd

wifi 卡死

活动监视器里杀掉 airportd

sudo kill -9 `ps aux | grep -v grep | grep /usr/libexec/airportd | awk '{print $2}'`

参考

FEATURED TAGS
生活 如何优雅地写好代码 Angular 响应式编程 RxJS 组件生命周期 组件实例 异步 NodeJS express ControlValueAccessor Depend Injection Change Detection Angular 5 CSS 模型共享与集成 JavaScript event jQuery 浏览器兼容 变化检测 前端
FRIENDS