利用Python写了简单测试主机是否存活脚本,此脚本不适于线上使用,因为网络延迟、丢包现象会造成误报邮件,那么后续会更新判断三次ping不通后再发报警邮件,并启用多线程处理。
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#!/usr/bin/env python
# coding:UTF-8
import time
import pexpect
import smtplib
from email.mime.text import MIMEText
mail_host = "smtp.163.com" #定义smtp服务器
mail_to = "baojingtongzhi@163.com" #邮件收件人
mail_from = "monitor@163.com" #邮件发件人
mail_pass = "123456" #邮件发件人邮箱密码
while True:
def Mail(error_ip):
date = time .strftime( '%Y-%m-%d %H:%M:%S' )
msg = MIMEText( "%s Ping %s failed from 255.252." % ( date , error_ip))
msg[ 'Subject' ] = "Ping %s failed." % error_ip #定义邮件主题
msg[ 'From' ] = mail_from
msg[ 'To' ] = mail_to
try:
s = smtplib.SMTP() #创建一个SMTP()对象
s.connect(mail_host, "25" ) #通过connect方法连接smtp主机
s.starttls() #启动安全传输模式
s.login(mail_from,mail_pass) #邮箱账户登录认证
s.sendmail(mail_from, mail_to, msg.as_string()) #邮件发送
s.quit() #断开smtp连接
except Exception, e:
print str(e)
ip_list = [ '192.168.18.10' ,
'192.168.18.11' ,
'192.168.18.12' ]
for ip in ip_list:
ping = pexpect.spawn( 'ping -c 1 %s' % ip)
check = ping .expect([pexpect.TIMEOUT, "1 packets transmitted, 1 received, 0% packet loss" ],2) #2代表超时时间
if check == 0:
Mail(ip)
print "Ping %s failed,Have email." % ip
if check == 1:
print "Ping %s successful." % ip
print "Sleep 10s..."
time . sleep (10)
#直接运行
# python ping.py
Ping 192.168.18.10 successful.
Ping 192.168.18.11 successful.
Ping 192.168.18.12 successful.
Sleep 10s...
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以上就是本文的全部内容,希望对大家学习Python监控主机是否存活并以邮件报警有所帮助。