zabbix邮件脚本报警

#启动邮箱服务

systemctl start postfix.service

#配置用户的邮箱发送邮件

vim /etc/mail.rc

set from="xxx@xxx.com"

set smtp="smtps://smtp.exmail.qq.com:465"

set smtp-auth-user="xxx@xxx.com"

set smtp-auth-password="xxxxxx"

set smtp-auth=login

set ssl-verify=ignore

set nss-config-dir=/etc/pki/nssdb

#测试发送邮件

[root@VM_centos ~]# echo "messages" | mail -v -s "subject" yxxx@qq.com

Resolving host smtp.exmail.qq.com . . . done.

Connecting to 163.177.90.125:465 . . . connected.

Error in certificate: Peer's certificate issuer is not recognized.

Comparing DNS name: "pop.qq.com"

Comparing DNS name: "ex.qq.com"

Comparing DNS name: "imap.exmail.qq.com"

Comparing DNS name: "rtx.exmail.qq.com"

Comparing DNS name: "smtp.exmail.qq.com"

SSL parameters: cipher=AES-128, keysize=128, secretkeysize=128,

issuer=CN=GeoTrust RSA CA 2018,OU=www.digicert.com,O=DigiCert Inc,C=US

subject=CN=pop.qq.com,OU=R&D,O=Shenzhen Tencent Computer Systems Company Limited,L=Shenzhen,ST=Gu

220 smtp.qq.com Esmtp QQ Mail Server

...

>>> QUIT

221 Bye

#解决证书解析报错

#手动的获取QQ 邮箱的证书保存到本地指定的目录里以备调用和验证

[root@VM_centos ~]# cd /etc/pki/nssdb/

[root@VM_centos nssdb]# ls

cert8.db cert9.db key3.db key4.db pkcs11.txt secmod.db

[root@VM_centos nssdb]# echo -n | openssl s_client -connect smtp.exmail.qq.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' >qq.crt

depth=2 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert Global Root CA

verify return:1

depth=1 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = GeoTrust RSA CA 2018

verify return:1

depth=0 C = CN, ST = Guangdong, L = Shenzhen, O = Shenzhen Tencent Computer Systems Company Limited, OU = R&D, CN = pop.qq.com

verify return:1

DONE

[root@VM_centos nssdb]# certutil -A -n "GeoTrust SSL CA" -t "C,," -d /etc/pki/nssdb -i qq.crt

[root@VM_centos nssdb]# certutil -A -n "GeoTrust Global CA" -t "C,," -d /etc/pki/nssdb -i qq.crt

[root@VM_centos nssdb]# certutil -L -d /etc/pki/nssdb

#进入邮箱 SSL 证书存放目录，为了信任证书的标记操作

[root@VM_centos nssdb]# certutil -A -n "GeoTrust SSL CA - G3" -t "Pu,Pu,Pu" -d ./ -i qq.crt

Notice: Trust flag u is set automatically if the private key is present.

#解决发送是附件

#只要把行尾^M去掉，然后发送的话就不会是附件的形式了

[root@VM_centos nssdb]# yum -y install dos2unix.x86_64

[root@VM_centos nssdb]# vim /usr/lib/zabbix/alertscripts/sendmail.sh

#!/bin/bash

TMP_FILE=/usr/lib/zabbix/alertscripts/tmp_messages.txt

 

echo $3 | tr '\r\n' '\n' > ${TMP_FILE} #把^M替换为\n

# dos2unix ${TMP_FILE} #解决发送的邮件内容变成附件的问题 未解决

subject=$2

mail -s "${subject}" $1 >>/var/log/sendmail.log 2>&1 <${TMP_FILE}

 

#注意权限是chown zabbix.zabbix

#zabbix 管理---->报警媒介类型

#查看zabbix脚本位置

[root@VM_centos alertscripts]# grep alertscripts /etc/zabbix/zabbix_server.conf

AlertScriptsPath=/usr/lib/zabbix/alertscripts