Home > Developer > Linux

View that process takes up the port number (Linux vs. Aix)

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

In Linux:


Netstat command

[CPP]View Plaincopy
  2. [Email protected] ~]# Netstat-tulp
  4. Active Internet connections (only servers)
  6. Proto recv-q send-q Local address Foreign address State Pid/program Name
  8. Tcp        0      0 *:sunrpc                      *:*                           listen      2151/ rpcbind          
  10. TCP 0 0 *:50000 *:* LISTEN 3542/DB2SYSC 0
  12. TCP 0 0 192.168.122.1:domain *:* LISTEN 2881/DNSMASQ
  14. tcp        0      0  *:ftp                        *:*                           LISTEN       2640/vsftpd           
  16. tcp        0      0 *:ssh                         *:*                           LISTEN       2611/sshd             
  18. TCP 0 0 Localhost:ipp *:* LISTEN 2343/CUPSD
  20. TCP 0 0 localhost:smtp *:* LISTEN 2660/sendmail
  22. tcp        0      0  *:38666                      *:*                           LISTEN       2281/rpc.statd        
  24. tcp        0      0 *:35339                       *:*                           LISTEN       2281/rpc.statd        
  26. tcp        0      0  *:sunrpc                     *:*                           LISTEN       2151/rpcbind          
  28. tcp        0      0 *:ssh                         *:*                           LISTEN       2611/sshd             
  30. TCP 0 0 Localhost:ipp *:* LISTEN 2343/CUPSD
  32. TCP 0 0 *:wbem-https *:* LISTEN 2905/cimservermain
  34. udp        0      0  *:kerberos-iv               * :*                                        2087/portreserve      
  36. Udp        0      0 *:sunrpc                      *:*                                        2151/rpcbind          
  38. udp        0      0  *:rda                        *:*                                        2151/rpcbind           
  40. udp        0      0 *:ipp                         *:*                                        2343/cupsd             
  42. udp        0      0  *:rxe                        *:*                                        2281/rpc.statd         
  44. Udp        0      0 *:ldaps                       *:*                                        2087/portreserve      
  46. udp        0      0  *:d hcp-failover             *:*                                         2087/portreserve      
  48. udp        0      0 *:783                         *:*                                        2087/portreserve      
  50. udp        0      0  192.168.122.1:domain        *:*                                        2881/dnsmasq           
  52. Udp        0      0 *:bootps                      *:*                                        2881/dnsmasq          
  54. udp        0      0  *:bootpc                     *:*                                        2312/dhclient         
  56. udp        0      0 *: dhcp-failover2            *:*                                        2087/ portreserve      
  58. udp        0      0  *:33375                      *:*                                        2281/rpc.statd        
  60. Udp        0      0 *:sunrpc                      *:*                                        2151/rpcbind          
  62. udp        0      0  *:rda                        *:*                                        2151/rpcbind           
  64. UDP 0 0 *:34398 *:* 2281/rpc.statd


Fuser command

[CPP]View Plaincopy
    1. [Email protected] ~]# fuser-v 22/tcp
    2. User Process number Permission command
    3. 22/tcp:root 2611 F .... sshd
    4. Root 7441 F .... sshd


lsof command

[CPP]View Plaincopy
    1. [Email protected] ~]# lsof-i:22
    2. COMMAND PID USER FD TYPE DEVICE size/off NODE NAME
    3. sshd 2611 root 3u IPv4 16168 0t0 TCP *:ssh (LISTEN)
    4. sshd 2611 Root 4u IPv6 16172 0t0 TCP *:ssh (LISTEN)
    5. sshd 7441 root 3u IPv4 48583 0t0 TCP 192.168.1.105:ssh->192.168.1.100:61791 (established)


In Aix:


Netstat and Rmsock

[CPP]View Plaincopy
  2. (1) First use the Netstat command to view the port system kernel address (16 binary), such as the process of viewing SSH 22 port.
  4. # Netstat–aan |grep 22
  6. f1000600044c7398 TCP4 0 134.96.194.9.22 134.96.90.123.1797 established
  8. F1000600044e4b98 TCP4 0 0 *.22 * * LISTEN
  10. Including: f1000600044e4b98 TCP4 0 0 *.22 * * * LISTEN
  12. The behavior listens on port 22 port related information, f1000600044e4b98 is the system kernel address.
  14. (2) Call the Rmsock command to see the process number for that port:
  16. # Rmsock F1000600044e4b98 TCPCB (socket, TCPCB, INPCB, RIPCB or RAWCB)
  18. The socket 0x44e4808 is being held by Proccess 447250 (sshd). ---shows that the process number for Port 22 is 447250.


lsof command

[CPP]View Plaincopy
      1. # lsof-i:22
      2. COMMAND PID USER FD TYPE DEVICE size/off NODE NAME
      3. sshd 107084 root 3u IPv4 0xf100070000a3a3b0 0t0 TCP *:ssh (LISTEN)

View that process takes up the port number (Linux vs. Aix)

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
ssh with port number linux how to change port number in linux process env port how to find localhost port number in linux linux process uptime linux find process id linux set process priority

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

What's Trending
Top 10 Tags
datastax versions naming convention zookeeper client class definition md5 microsoft sql server 2005 data structures exception handling error handling
Top 10 Keywords
microsoft download center down wordpress address url site address url wordpress address url windows installer 4 0 download 302 not found web address url definition site address url wordpress db2 integer mac os installation step by step pdf abbreviation for return

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More