python 查看进程打开的端口

pip install psutil

import psutil

for proc in psutil.process_iter(['pid', 'name', 'connections']):
    for conn in proc.info['connections']:
        if conn.status == 'LISTEN':
            print(f"Process {proc.info['pid']} ({proc.info['name']}) is listening on {conn.laddr}")

import socket
import os

def get_process_ports(pid):
    try:
        # 获取进程的网络命名空间
        with open(f'/proc/{pid}/fdinfo', 'r') as f:
            for line in f:
                if 'socket' in line:
                    inode = int(line.split()[9])
                    for s in socket.socket(socket.AF_INET, socket.SOCK_STREAM).getsockname():
                        if s[0] == inode:
                            print(f"Process {pid} is using port {s[1]}")
    except FileNotFoundError:
        print(f"Process {pid} not found")

# 替换下面的 PID 为你想要查询的进程ID
get_process_ports(1234)

import subprocess

def get_open_ports():
    result = subprocess.run(['ss', '-tuln'], capture_output=True, text=True)
    print(result.stdout)

get_open_ports()