解决linux下创建用户时出现 Creating mailbox file: 文件已存在

概述原来linux下添加用户后,会在系统里自动加一个邮箱(系统邮箱),路径是:/var/spool/mail/用户名.       可以直接用命令#rm -rf /var/spool/mail/用户名       这样就可以再次添加同一名字的用户.   解决You have new mail in /var/spool/mail/root提示 终端远程登陆后经常提示You have new mail

原来linux下添加用户后,会在系统里自动加一个邮箱(系统邮箱),路径是:/var/spool/mail/用户名.
      可以直接用命令#rm -rf /var/spool/mail/用户名
      这样就可以再次添加同一名字的用户.

 

解决You have new mail in /var/spool/mail/root提示

终端远程登陆后经常提示You have new mail in /var/spool/mail/root

这个提示是liNUX会定时查看liNUX各种状态做汇总，每经过一段时间会把汇总的信息发送的root的邮箱里，以供有需之时查看。

一般这种情况mail的内容就只是一些正常的系统信息或者是比较重要的错误报告。

如果你安装了mutt的话直接用这个命令就可以查看mail的内容（用root登陆先），没有装的话用cat /var/spool/mail/root查看（用root登陆先）。

查看内容：

[[email protected] ~]# cat /var/spool/mail/rootFrom [email protected]  Wed May  1 14:59:35 2019Return-Path: <[email protected]>X-Original-To: rootDelivered-To: [email protected]Received: by tan.localdomain (Postfix,from userID 0)    ID AD13C101A70C; Wed,1 May 2019 14:59:34 +0800 (CST)To: [email protected]From: [email protected]auto-submitted: auto-generatedSubject: *** Security information for tan ***Message-ID: <20190501065934[email protected]>Date: Wed,1 May 2019 14:59:34 +0800 (CST)tan : May  1 14:59:34 : tan : user NOT in sudoers ; TTY=pts/1 ; PWD=/home/tan ; USER=root ; COMMAND=/sbin/useradd tan2From [email protected]  Wed May  1 15:04:53 2019Return-Path: <[email protected]>X-Original-To: rootDelivered-To: [email protected]Received: by tan.localdomain (Postfix,from userID 0)    ID F0D65101A70C; Wed,1 May 2019 15:04:52 +0800 (CST)To: [email protected]From: [email protected]auto-submitted: auto-generatedSubject: *** Security information for tan ***Message-ID: <20190501070452[email protected]>Date: Wed,1 May 2019 15:04:52 +0800 (CST)tan : May  1 15:04:52 : tan : user NOT in sudoers ; TTY=pts/1 ; PWD=/home/tan ; USER=root ; COMMAND=/sbin/useradd tan2From [email protected]  Wed May  1 15:06:08 2019Return-Path: <[email protected]>X-Original-To: rootDelivered-To: [email protected]Received: by tan.localdomain (Postfix,from userID 0)    ID C3BD8101A70C; Wed,1 May 2019 15:06:08 +0800 (CST)To: [email protected]From: [email protected]auto-submitted: auto-generatedSubject: *** Security information for tan ***Message-ID: <20190501070608[email protected]>Date: Wed,1 May 2019 15:06:08 +0800 (CST)tan : May  1 15:06:08 : tan : user NOT in sudoers ; TTY=pts/1 ; PWD=/home/tan ; USER=root ; COMMAND=/sbin/useradd tan2From [email protected]  Wed May  1 15:18:14 2019Return-Path: <[email protected]>X-Original-To: rootDelivered-To: [email protected]Received: by tan.localdomain (Postfix,from userID 0)    ID 68249101A71A; Wed,1 May 2019 15:18:14 +0800 (CST)To: [email protected]From: [email protected]auto-submitted: auto-generatedSubject: *** Security information for tan ***Message-ID: <20190501071814[email protected]>Date: Wed,1 May 2019 15:18:14 +0800 (CST)tan : May  1 15:18:14 : tan : user NOT in sudoers ; TTY=pts/1 ; PWD=/etc ; USER=root ; COMMAND=/bin/cat sudoers

也可以设置把这个信息发送到管理员邮箱

日志分析工具 Logwatch能够对linux 的日志文件进行分析，并自动发送mail给相关处理人员，可定制需求 Logwatch的mail功能是借助宿主系统自带的mail server发邮件的，系统需安装mail server,如sendmail，postfix,Qmail等，具体配置不叙述

关闭提示：

[[email protected] ~]# echo "unset MAILCHECK">> /etc/profile[[email protected] ~]# source /etc/profile

查看：

[[email protected] ~]# ls -lth /var/spool/mail/total 49M-rw------- 1 root mail 49M Jul 4 13:43 root-rw-rw---- 1 Nginx mail 0 May 21 11:46 Nginx-rw-rw---- 1 zabbix mail 0 May 16 15:48 zabbix

清空：

[[email protected] ~]# cat /dev/null > /var/spool/mail/root

 

关闭提示：

@H_133_419@ 1 2 [[email protected] ~] # echo "unset MAILCHECK">> /etc/profile [[email protected] ~] # source /etc/profile 总结

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