Linux服务器用户登录邮件告警

1，首先安装mailx工具用于发送邮件 yum -y install mailx

2，配置 mailx vim /etc/mail.rc

#This is the configuration file for Heirloom mailx (formerly #known under the name "nail". #See mailx(1) for further options. #This file is not overwritten when 'make install' is run in #the mailx build process again.

#Sccsid @(#)nail.rc 2.11 (gritter) 8/2/08

#Do not forward to mbox by default since this is likely to be #irritating for most users today. set hold

#Append rather than prepend when writing to mbox automatically. #This has no effect unless 'hold' is unset again. set append

#Ask for a message subject. set ask

#Assume a CRT-like terminal and invoke a pager. set crt

#Messages may be terminated by a dot. set dot

#Do not remove empty mail folders in the spool directory. #This may be relevant for privacy since other users could #otherwise create them with different permissions. set keep

#Do not remove empty private mail folders. set emptybox

#Quote the original message in replies by "> " as usual on the Internet. set indentprefix="> "

#Automatically quote the text of the message that is responded to. set quote

#Outgoing messages are sent in ISO-8859-1 if all their characters are #representable in it, otherwise in UTF-8. set sendcharsets=iso-8859-1,utf-8

#Display sender's real names in header summaries. set showname

#Display the recipients of messages sent by the user himself in #header summaries. set showto

#Automatically check for new messages at each prompt, but avoid polling #of IMAP servers or maildir folders. set newmail=nopoll

#If threaded mode is activated, automatically collapse thread. set autocollapse

#Mark messages that have been answered. set markanswered

#Hide some header fields which are uninteresting for most human readers. ignore received in-reply-to message-id references ignore mime-version content-transfer-encoding

#Only include selected header fields when forwarding messages. fwdretain subject date from to

#For Linux and BSD, this should be set. set bsdcompat

set from=[e-mail] set smtp="smtps://smtp.163.com:465" set smtp-auth-user=[e-mail] set smtp-auth-password=qincexxx set smtp-auth=login set nss-config-dir=/etc/pki/nssdb/mail/

3，测试mailx工具是否可以正常发送邮件 echo "test 123456"|mail -v -s "title" [e-mail]

4，写入用户家目录下的环境变量文件中，这里测试的root用户 vim /root/.bashrc

if [ -f /etc/bashrc ]; then . /etc/bashrc fi echo "$(whoami) login at: $(date +"%F %T") ip address: $(w|sed -n '3p'|awk '{print$3}')" | mail -s root [e-mail]

5，使配置配置文件生效并退出shell终端进行测试 source /root/.bashrc

6，重新登录测试