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In the absence of nagios monitoring software, as long as the server can be on the Internet, you can send mail to remind the Administrator system load and CPU usage. First, install the following Linux mail client msmtp software (similar to a

Https://www.jb51.net/article/58799.htmIn the absence of nagios monitoring software, as long as the server can be on the Internet, you can send e-mail to remind the Administrator of the system load and CPU usage.One, install Linux under a mail client

60 Open Source Cloud Applications "Part 3" (The Open source app you Can use in the cloud)This article is translated from http://www.datamation.com/open-source/60-open-source-apps-you-can-use-in-the-cloud-3.html, the original author Cynthia Harvey,

1, the United States Sea Amoy commonly used website: When it comes to the sea, the first is definitely the idea of buying a website in the United States. Not only is the goods more, the key is that the price is really cheap. Whether it is skin care

1. Check if you have installed:Yum List installed mysql*Rpm-qa | grep mysql*2. Check that there are no installation packages:Yum List mysql*3. Install the MySQL client:Yum install MySQL4. Install the MySQL server side:Yum Install Mysql-serverYum

When developing Web applications, you often have to add search capabilities. I didn't even know what to search, so I drew a magnifying glass on the sketch. Search is a very important feature, so lucene based tools like Elasticsearch and SOLR become

With high stability and reliability, Linux has good scalability and scalability, and can be adapted to different applications and hardware environments to optimize the best performance to meet current application needs. Therefore, it is very

Explain what is GPL,GNU, free software?GPL: (general Public License): A power to grant, modify, and redistribute free software to any person.GNU: (Slave program): The goal is to create a completely free and open operating system.Free software: A

Write SHELL scripts to monitor hosts 1. Run the vi command to create a script file sysmon. sh in the/root directory: The content is as follows: #! /Bin/bash Dug = $ (df-h | grep "/$" | awk '{print $4}' | awk-F % '{print $1 }') Cug = $ (expr 100-$

2.3 use basic commands 12. cat command It is used to display the file content on the standard output, but does not update the file. The syntax is cat + file name. For example, to display the content of the/home/long/example.txt file, run the