rtx怎么看域名和端口

import socket

def check_domain_port(domain, port):
    try:
        # 获取IP地址
        ip = socket.gethostbyname(domain)
        print(f"Domain {domain} resolved to IP: {ip}")
        
        # 尝试连接端口
        with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
            s.settimeout(2)  # 设置超时时间
            result = s.connect_ex((ip, port))
            if result == 0:
                print(f"Port {port} is open on {domain}")
            else:
                print(f"Port {port} is closed or filtered on {domain}")
    except socket.gaierror:
        print(f"Failed to resolve domain {domain}")
    except socket.error as e:
        print(f"Socket error: {e}")

# 示例调用
check_domain_port("example.com", 80)