利用socket模块检查端口存活并邮件警报

可以用来监控一些端口。
import socket

def check_server(addr, port):

    s = socket.socket()

    try:

        s.connect((addr, port))

        return True

    except socket.error:

        return False

def alert(p):

    from email.mime.text import MIMEText

    import smtplib

    sender = "admin@qq.com"

    receiver = ["admin@qq.com"]

    host = 'smtp.qq.com'

    passwd = 'xxxxx'

    port = 465

    content = '端口：%r 故障' % p

    msg = MIMEText(content)

    msg['From'] = "admin@qq.com"

    msg['To'] =';'.join(receiver)

    msg['Subject'] = "vps警报"

    try:

        smtp = smtplib.SMTP_SSL(host, port)

        smtp.login(sender, passwd)

        smtp.sendmail(sender, receiver, msg.as_string())

    except Exception:

        print("error")

if __name__=='__main__':

    for p in [443, 2280]:

        result = check_server('23.188.2.75', p)

        if not result:

            alert(p)