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
)
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#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...
本文转自 李振良OK 51CTO博客，原文链接：http://blog.51cto.com/lizhenliang/1649664，如需转载请自行联系原作者
