「CentOS8」lsofとnetstatコマンドで特定ポート番号からプロセスを確認する方法

1. TCPプロトコルを利用しているものを表示
# sudo lsof -i TCP

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EnlighterJS 3 Syntax Highlighter
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
systemd 1 root 39u IPv4 22754 0t0 TCP *:sunrpc (LISTEN)
systemd 1 root 41u IPv6 22756 0t0 TCP *:sunrpc (LISTEN)
systemd 1 root 56u IPv6 26419 0t0 TCP *:websm (LISTEN)
rpcbind 831 rpc 4u IPv4 22754 0t0 TCP *:sunrpc (LISTEN)
rpcbind 831 rpc 6u IPv6 22756 0t0 TCP *:sunrpc (LISTEN)
cupsd 1059 root 9u IPv6 33004 0t0 TCP localhost:ipp (LISTEN)
cupsd 1059 root 10u IPv4 33005 0t0 TCP localhost:ipp (LISTEN)
sshd 1065 root 5u IPv4 31954 0t0 TCP *:ssh (LISTEN)
sshd 1065 root 7u IPv6 31964 0t0 TCP *:ssh (LISTEN)
redis-ser 1068 redis 6u IPv4 31998 0t0 TCP localhost:redis (LISTEN)
mysqld 1149 mysql 32u IPv6 38449 0t0 TCP *:mysqlx (LISTEN)
mysqld 1149 mysql 34u IPv6 38821 0t0 TCP *:mysql (LISTEN)
httpd 1363 root 4u IPv6 37169 0t0 TCP *:http (LISTEN)
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME systemd 1 root 39u IPv4 22754 0t0 TCP *:sunrpc (LISTEN) systemd 1 root 41u IPv6 22756 0t0 TCP *:sunrpc (LISTEN) systemd 1 root 56u IPv6 26419 0t0 TCP *:websm (LISTEN) rpcbind 831 rpc 4u IPv4 22754 0t0 TCP *:sunrpc (LISTEN) rpcbind 831 rpc 6u IPv6 22756 0t0 TCP *:sunrpc (LISTEN) cupsd 1059 root 9u IPv6 33004 0t0 TCP localhost:ipp (LISTEN) cupsd 1059 root 10u IPv4 33005 0t0 TCP localhost:ipp (LISTEN) sshd 1065 root 5u IPv4 31954 0t0 TCP *:ssh (LISTEN) sshd 1065 root 7u IPv6 31964 0t0 TCP *:ssh (LISTEN) redis-ser 1068 redis 6u IPv4 31998 0t0 TCP localhost:redis (LISTEN) mysqld 1149 mysql 32u IPv6 38449 0t0 TCP *:mysqlx (LISTEN) mysqld 1149 mysql 34u IPv6 38821 0t0 TCP *:mysql (LISTEN) httpd 1363 root 4u IPv6 37169 0t0 TCP *:http (LISTEN)
COMMAND    PID   USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
systemd      1   root   39u  IPv4  22754      0t0  TCP *:sunrpc (LISTEN)
systemd      1   root   41u  IPv6  22756      0t0  TCP *:sunrpc (LISTEN)
systemd      1   root   56u  IPv6  26419      0t0  TCP *:websm (LISTEN)
rpcbind    831    rpc    4u  IPv4  22754      0t0  TCP *:sunrpc (LISTEN)
rpcbind    831    rpc    6u  IPv6  22756      0t0  TCP *:sunrpc (LISTEN)
cupsd     1059   root    9u  IPv6  33004      0t0  TCP localhost:ipp (LISTEN)
cupsd     1059   root   10u  IPv4  33005      0t0  TCP localhost:ipp (LISTEN)
sshd      1065   root    5u  IPv4  31954      0t0  TCP *:ssh (LISTEN)
sshd      1065   root    7u  IPv6  31964      0t0  TCP *:ssh (LISTEN)
redis-ser 1068  redis    6u  IPv4  31998      0t0  TCP localhost:redis (LISTEN)
mysqld    1149  mysql   32u  IPv6  38449      0t0  TCP *:mysqlx (LISTEN)
mysqld    1149  mysql   34u  IPv6  38821      0t0  TCP *:mysql (LISTEN)
httpd     1363   root    4u  IPv6  37169      0t0  TCP *:http (LISTEN)

2.80ポートを使っているプロセスを表示
# sudo lsof -i:80

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EnlighterJS 3 Syntax Highlighter
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
httpd 1363 root 4u IPv6 37169 0t0 TCP *:http (LISTEN)
httpd 1828 apache 4u IPv6 37169 0t0 TCP *:http (LISTEN)
httpd 1829 apache 4u IPv6 37169 0t0 TCP *:http (LISTEN)
httpd 1830 apache 4u IPv6 37169 0t0 TCP *:http (LISTEN)
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME httpd 1363 root 4u IPv6 37169 0t0 TCP *:http (LISTEN) httpd 1828 apache 4u IPv6 37169 0t0 TCP *:http (LISTEN) httpd 1829 apache 4u IPv6 37169 0t0 TCP *:http (LISTEN) httpd 1830 apache 4u IPv6 37169 0t0 TCP *:http (LISTEN)
COMMAND  PID   USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
httpd   1363   root    4u  IPv6  37169      0t0  TCP *:http (LISTEN)
httpd   1828 apache    4u  IPv6  37169      0t0  TCP *:http (LISTEN)
httpd   1829 apache    4u  IPv6  37169      0t0  TCP *:http (LISTEN)
httpd   1830 apache    4u  IPv6  37169      0t0  TCP *:http (LISTEN)

3.netstatコマンド
-a 全て接続
-p プロセスID
-n IPアドレス
# sudo netstat -apn|grep :80

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tcp6 0 0 :::80 :::* LISTEN 1363/httpd
tcp6 0 0 :::80 :::* LISTEN 1363/httpd
tcp6       0      0 :::80                   :::*                    LISTEN      1363/httpd

 

CentOS

Posted by arkgame