centOS为SSH登录设置电子邮件提醒

以root用户为例:

vim /root/.bashrc

echo 'xx被人登录' `date` `who` | mail -s "阿里云服务器被登录"  xx@163.com (收件邮箱)

 

安装mailx

yum install mailx -y

vim /etc/mail.rc

写入:

set from=12312120@qq.com   (发件邮箱)
set smtp=smtps://smtp.qq.com:465
set smtp-auth-user=12312120@qq.com
set smtp-auth-password=你的 QQ 邮箱授权码
set smtp-auth=login
set ssl-verify=ignore
set nss-config-dir=/root/.certs

#配置QQ邮箱的SSL证书

mkdir -p /root/.certs/

echo -n | openssl s_client -connect smtp.qq.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > ~/.certs/qq.crt

certutil -A -n "GeoTrust SSL CA" -t "C,," -d ~/.certs -i ~/.certs/qq.crt

certutil -A -n "GeoTrust Global CA" -t "C,," -d ~/.certs -i ~/.certs/qq.crt

certutil -L -d /root/.certs

为了防止出现前文所说的发送邮件警告提示，还需要进入邮箱 SSL 证书存放目录 /root/.certs 里执行如下命令：

cd /root/.certs

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.出现这句就可以