Resolve CentOS Close you have new mail In/var/spool/mail/root tips

Yesterday moved to Ali Cloud.

The system is CentOS 6.3 's reinforced version.

Today, when I look at memory, I get a day of weird hints.

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

Sometimes every time you hit the carriage return, come out you have new mail in/var/spool/mail/root hint, exactly is why?

Linux systems often send messages automatically to remind users what's wrong with the system (Inbox location:/var/mail/). However, these messages are sent to the root user. For system security reasons, it is often not recommended that you use the root account directly for day-to-day operations. So there's a way to get the system to send a copy of the email to the root user to a designated external mailbox, or close the service directly.

1, shut down the SendMail service, here introduces one kind does not have to close the SendMail service the method

The code is as follows	Copy Code
echo "unset mailcheck" >>/etc/profilesource/etc/profile

To turn off SendMail features:

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chmod 0/usr/sbin/sendmailmv/usr/sbin/sendmail/usr/sbin/sendmail.bakln-s/var/qmail/bin/sendmail/usr/sbin/ SendMail

Empty/var/spool/mail/root Log

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Cat/dev/null >/var/spool/mail/rootcat/dev/null>;/var/spool/mail/root

Or forward to their own mailbox, below the introduction of how to forward to their own mailbox (this method has not personally verified from the network, have like to toss their own research, success can be a thread to share experience)

2, the root mail forward to their own mailbox
Method One:
Modify this file

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/etc/log.d/logwatch.conf Add mailto = root,xxx@xxx.com

Method Two

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/etc/aliases

Add root:xxx@xxx.com

Note: As if set to and host the same domain, as if the mail will not be sent, such as the local mail is moper.me, then send this can not send, the corresponding send other mailboxes will be successful.

About "/etc/aliases":

When SendMail receives a letter to send to XXX, it is sent to another user based on the contents of the/etc/aliases file. This feature can create a user who is only valid within the letter system. For example, mailing list will use this function, in the mailing list, we may create a mailinglist called redlinux@link.ece.uci.edu, but in fact, there is no user named Redlinux. The actual aliases file is the content of the letter sent to this user to the mailing list handler responsible for the delivery of the work.

/etc/aliases is a text document, and sendmail needs a binary format of the/etc/aliases.db. Newaliases's function is to convert/etc/aliases into a DB file that the SendMail can understand:

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[Root@centos ~]# newaliases

Messages other than root can be forwarded by creating a. forward file under User/home/:

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Somebody Other1 Other2

File permissions are set to 600, but. Forward can be maintained by the user, while aliases only the administrator can modify.

Set the ~/.forward file to join the forwarding purpose can be

Many tutorials on the Internet are you copy me, I copy you, there is no verification, such as a method is to modify the "/usr/share/logwatch/default.conf/logwatch.conf" configuration file, in the CENTOS6 there is no such file, As for the previous version there is no know.

There are many tutorials, only "echo" unset mailcheck ">>/etc/profile", and there is no "source/etc/profile", which is also wrong.