python实现监控某个服务 服务崩溃即发送邮件报告

#-*- encoding:utf-8 -*- #!/usr/bin/env python # name IsOpen.py import os import socket import time import smtplib  from email.mime.text import MIMEText  mailto_list=["872766492@qq.com"]  mail_host="smtp.qq.com" #设置服务器 mail_user="1124794084"  #用户名 mail_pass="密码"  #口令  mail_postfix="qq.com" #发件箱的后缀   def send_mail(to_list,sub,content): #to_list：收件人；sub：主题；content：邮件内容   me="升级服务器报告"+"<"+mail_user+"@"+mail_postfix+">"  #这里的hello可以任意设置，收到信后，将按照设置显示   msg = MIMEText(content,_subtype='html',_charset='gb2312')  #创建一个实例，这里设置为html格式邮件   msg['Subject'] = sub  #设置主题   msg['From'] = me    msg['To'] = ";".join(to_list)    try:      s = smtplib.SMTP()      s.connect(mail_host) #连接smtp服务器     s.login(mail_user,mail_pass) #登陆服务器     s.sendmail(me, to_list, msg.as_string()) #发送邮件     s.close()      return True    except Exception, e:      print str(e)      return False   def IsOpen(ip,port,flag):   s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)   try:     s.connect((ip,int(port)))     s.shutdown(2)     print '%d is open' % port     return True   except:     print '%d is down' % port      return False    if __name__ == '__main__':   while(1>0):     flag=1     IsOpen('127.0.0.1',9906)     time.sleep(60)     flag=IsOpen('127.0.0.1',9906)     print flag     if flag==False:       send_mail(mailto_list,"XX升级服务器监测异常","error")       time.sleep(1800)  #设置一分钟监测一次，如果发现端口9906消失则发送邮件报告，设置延迟为半小时，避免一直重复发送邮件