80 - ubuntu 查看进程，查看服务 - （准备弃用）

13 - Linux - 基本命令 - netstat - 端口占用

ps aux                              看所有运行进程
ps aux | grep 程序名         如果你想找特定的进程
kill -9 进程号                    结束进程（进程号就是你运行ps命令看到的第二列的4位数字）

sudo netstat -anpl | grep :3306

jiqing@Ubuntu:~$ sudo netstat -anpl | grep :3306
tcp6       0      0 :::3306                 :::*                    LISTEN      1532/mysqld     
jiqing@Ubuntu:~$ sudo netstat -anpl | grep :80
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      2994/nginx: master 
jiqing@Ubuntu:~$ ps -ef | grep nginx
root      2994  1833  0 11:28 ?        00:00:00 nginx: master process nginx
www       2995  2994  0 11:28 ?        00:00:00 nginx: worker process
www       2996  2994  0 11:28 ?        00:00:00 nginx: worker process
www       2997  2994  0 11:28 ?        00:00:00 nginx: worker process
www       2998  2994  0 11:28 ?        00:00:00 nginx: worker process
jiqing    3049  2515  0 11:31 pts/11   00:00:00 grep --color=auto nginx
jiqing@Ubuntu:~$ ps -ef | grep mysql
root      1016     1  0 11:25 ?        00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/usr/local/mysql/var --pid-file=/usr/local/mysql/var/Ubuntu.pid
mysql     1532  1016  0 11:25 ?        00:00:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/var --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/usr/local/mysql/var/Ubuntu.err --open-files-limit=65535 --pid-file=/usr/local/mysql/var/Ubuntu.pid --socket=/tmp/mysql.sock --port=3306
jiqing    3051  2515  0 11:31 pts/11   00:00:00 grep --color=auto mysql

列出所有的tcp端口netstat -ntlp

# netstat -ntlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 127.0.0.1:6379          0.0.0.0:*               LISTEN      22473/redis-server  
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      4293/nginx: master  
tcp        0      0 0.0.0.0:8211            0.0.0.0:*               LISTEN      4293/nginx: master  
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1164/sshd           
tcp        0      0 127.0.0.1:8383          0.0.0.0:*               LISTEN      23301/xs-indexd: se 
tcp        0      0 127.0.0.1:8384          0.0.0.0:*               LISTEN      23305/xs-searchd: m 
tcp        0      0 0.0.0.0:3306            0.0.0.0:*               LISTEN      8064/mysqld

列出所有的udp端口netstat -nulp

# netstat -nulp
激活Internet连接 (仅服务器)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
udp    52224      0 0.0.0.0:68              0.0.0.0:*                           2563/dhclient   
udp        0      0 0.0.0.0:631             0.0.0.0:*                           1238/cups-browsed
udp        0      0 0.0.0.0:58025           0.0.0.0:*                           1064/avahi-daemon: 
udp        0      0 127.0.0.1:1080          0.0.0.0:*                           1739/python     
udp    28736      0 0.0.0.0:5353            0.0.0.0:*                           6921/nw         
udp     9280      0 0.0.0.0:5353            0.0.0.0:*                           4243/chrome     
udp    31872      0 0.0.0.0:5353            0.0.0.0:*                           1064/avahi-daemon: 
udp6       0      0 :::35139                :::*                                1064/avahi-daemon: 
udp6   14656      0 :::5353                 :::*                                6921/nw         
udp6   20672      0 :::5353                 :::*                                4243/chrome     
udp6   20672      0 :::5353                 :::*                                1064/avahi-daemon:

查看外部的tcp netstat -ntlpa

# netstat -ntlpa
激活Internet连接 (服务器和已建立连接的)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:22624         0.0.0.0:*               LISTEN      7042/exe        
tcp        0      0 127.0.0.1:36395         0.0.0.0:*               LISTEN      7042/exe        
tcp        0      0 127.0.0.1:6379          0.0.0.0:*               LISTEN      1183/redis-server 1
tcp        0      0 127.0.0.1:25613         0.0.0.0:*               LISTEN      6999/exe        
tcp        0      0 127.0.0.1:63342         0.0.0.0:*               LISTEN      26309/java      
tcp        0      0 127.0.0.1:19471         0.0.0.0:*               LISTEN      6999/exe        
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      1519/nginx.conf 
tcp        0      0 0.0.0.0:8211            0.0.0.0:*               LISTEN      1519/nginx.conf 
tcp        0      0 0.0.0.0:8212            0.0.0.0:*               LISTEN      1519/nginx.conf 
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      11230/cupsd     
tcp        0      0 127.0.0.1:1080          0.0.0.0:*               LISTEN      1739/python     
tcp        0      0 0.0.0.0:8888            0.0.0.0:*               LISTEN      1519/nginx.conf 
tcp        0      0 127.0.0.1:6942          0.0.0.0:*               LISTEN      26309/java      
tcp        0      0 127.0.0.1:40104         127.0.0.1:6379          TIME_WAIT   -               
tcp        0      0 192.168.1.128:42862     101.132.169.194:22      ESTABLISHED 15204/ssh       
tcp        0      0 192.168.1.128:53712     47.75.180.205:2000      ESTABLISHED 4243/chrome     
tcp        0      0 127.0.0.1:34122         127.0.0.1:26483         ESTABLISHED 6921/nw         
tcp        0      0 127.0.0.1:47234         127.0.0.1:3306          TIME_WAIT   -               
tcp        0      0 127.0.0.1:40106         127.0.0.1:6379          TIME_WAIT   -               
tcp        0      0 192.168.1.128:46428     101.226.76.164:443      ESTABLISHED 4243/chrome     
tcp        0      0 192.168.1.128:44532     59.111.160.197:80       ESTABLISHED 1317/netease-cloud-
tcp        0      0 127.0.0.1:47238         127.0.0.1:3306          TIME_WAIT   -               
tcp        0      0 127.0.0.1:36214         127.0.0.1:80            ESTABLISHED 4243/chrome     
tcp        0      0 192.168.1.128:60894     223.252.199.69:6003     ESTABLISHED 1317/netease-cloud-
tcp        0      0 127.0.0.1:47144         127.0.0.1:3306          TIME_WAIT   -               
tcp        0      0 127.0.0.1:55902         127.0.0.1:6379          ESTABLISHED 24062/rdm       
tcp        0      0 127.0.0.1:47230         127.0.0.1:3306          TIME_WAIT   -               
tcp        0      0 192.168.1.128:47122     101.132.169.194:22      ESTABLISHED 16503/ssh       
tcp        0      0 192.168.1.128:58480     54.86.169.116:443       ESTABLISHED 27254/Postman   
tcp        0      0 127.0.0.1:6379          127.0.0.1:55902         ESTABLISHED 1183/redis-server 1
tcp        0      0 127.0.0.1:40122         127.0.0.1:6379          TIME_WAIT   -               
tcp        0      0 192.168.1.128:52482     38.143.1.170:2020       ESTABLISHED 4243/chrome     
tcp        0      0 127.0.0.1:47232         127.0.0.1:3306          TIME_WAIT   -               
tcp        0      0 127.0.0.1:80            127.0.0.1:36214         ESTABLISHED 29553/nginx: worker
tcp        0      0 127.0.0.1:47222         127.0.0.1:3306          TIME_WAIT   -               
tcp        0      0 127.0.0.1:35508         127.0.0.1:26483         ESTABLISHED 6921/nw         
tcp        1      0 192.168.1.128:35168     106.15.95.197:80        CLOSE_WAIT  4243/chrome     
tcp6       0      0 :::3306                 :::*                    LISTEN      2353/mysqld     
tcp6       0      0 :::26483                :::*                    LISTEN      7042/exe        
tcp6       0      0 :::54484                :::*                    LISTEN      6999/exe        
tcp6       0      0 :::21                   :::*                    LISTEN      1560/vsftpd     
tcp6       0      0 ::1:631                 :::*                    LISTEN      11230/cupsd     
tcp6       0      0 127.0.0.1:26483         127.0.0.1:34122         ESTABLISHED 7042/exe        
tcp6       0      0 127.0.0.1:3306          127.0.0.1:47228         TIME_WAIT   -               
tcp6       0      0 127.0.0.1:3306          127.0.0.1:47224         TIME_WAIT   -               
tcp6       0      0 127.0.0.1:3306          127.0.0.1:47226         TIME_WAIT   -               
tcp6       0      0 127.0.0.1:26483         127.0.0.1:35508         ESTABLISHED 7042/exe