About SAN-storage RAID group and RAID level settings & lt; some minor suggestions & gt;

In recent years, customers have always asked original storage engineers about the storage RAID plan (RAID, 5, 6 ....): "How many RAID are used? What RAID level is used? Why is RAID at this level used? What are the benefits of this level? Wait, "the

Pptpd + mysql + freeradius in Centos6.0 for unified vpn account authentication management

System Centos6.0; 192.168.182.20. This article is also one of the recent projects; for the next vpn tunnel and multi-ip Route shunting; -Rw-r -- 1 root 684342 June 19 22:49 ppp-2.4.5.tar.gz-rw-r -- r -- 1 root 74048 June 19 22:49 pptpd-1.3.4-2.el6.i6

Interpreting Windows blue screen code to understand the cause of failure

Many users have encountered screen code when using the Windows system. Once the blue screen of the system appears, many friends are dumpfounded. The blue screen is full, and a few white lines of code are confusing. This kind of error information

Use the Registry to enhance system security

The popularity of the Internet has brought a lot of convenience to our lives. However, how to prevent malicious attacks or damages and ensure system security is even more important. I have accumulated a lot of security experience in the process of

Use the registry to prevent arbitrary changes.

In many application environments, not every user needs to set certain features of the system. At the same time, such arbitrary settings will cause great trouble to the system administrator. Although there are a lot of software that can protect the

Cluster System implementation solution

I. Basic concepts of clustersThere is a common way to greatly improve the security of the server, which is the cluster.The Cluster technology can be defined as follows: a group of independent servers act as a single system in the network and are

Install the Exchange 2000 Server

1. Preparations before installation 1) Make sure that Windows 2000 has been upgraded to the domain controller and the Active Directory is installed ). Assume that the computer name of the Server is "Server", "Domain" is named "edu", and "Domain

Microsoft IIS zero-day attack alert

Microsoft IIS must be known to all. The code for Microsoft IIS zero-day attacks against some versions of FTP functions has already appeared on the Internet, and the Network Security Organization recommends corresponding countermeasures. It is

Adjust Cache memory on the IIS server

There are many things worth learning about IIS server. Here we mainly introduce the knowledge about memory adjustment for IIS server Cache. IIS Server 5.0 saves static webpage data to the Cache. IIS Server 4.0 saves static webpage data to files.

Liunx basic commands (shell basic priority adjustment)

Hello everyone, this time we will introduce some network configurations under liunx, simple basic optimization of shell, and level adjustment first. There are also some commands for you to take a look. Statement: I like to share with others. I am

LVS Load Balancing cluster + NAS shared storage service

LVS-DR direct connection routing mode + NAS storage sharing 650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/053FV109-0.jpg "title =" 54.jpg" alt = "161926991.jpg"/> Tutorial steps: LVS Scheduler configuration: 1) Modify

Zabbix monitoring of Juniper firewall and Sangfor devices and NetScaler Devices

Common monitoring OID of Juniper Firewall Cpu usage in the past 1 minute: 1.3.6.1.4.1.3224.16.1.2.0 Cpu usage in the past 5 minutes: 1.3.6.1.4.1.3224.16.1.3.0 Current cpu usage: 1.3.6.1.4.1.3224.16.1.1.0 Allocated memory:

Liunx system processes and threads

Hello, everyone. Today, when I saw the word "Single-thread" in high-performance mysql, I instantly circled it. What is the thread? What is a thread? Needless to say, I am very familiar with the process. What is the relationship between them? I

Detailed explanation of RAID6 Structure

What is RAID] The concept of RAID is everywhere on the Internet. The simplest principle is to allow the definition of a storage method to not affect all data when some data is missing, similar to error codes in the communication field. Different

Discuss how to check the working status of IIS FTP

We have learned how to establish iis ftp in our previous teaching. Now, let's take a look at how to check whether it works normally? Internet Information Service (IIS) manager is imperceptible. Step 1: In general, if we want to set up the

Explanation of IIS server verification Server

There are many things worth learning about the IIS server. Here we mainly introduce the validators in the IIS server. I hope this will help you learn about IIS servers. This authentication method only sends the verification ticket sent by the client

How to bind two domain names to an IIS server and run them independently

Because I often learn about IIS servers and often use IIS servers, I also like to sum up my experience on IIS servers, the following describes how to bind two domain names to IIS and run them independently. The IIS server can be used independently

Quickly detects whether your system supports Hyper-V

Hyper-V is a heavyweight virtualization tool platform launched by Microsoft with Windows Server 2008. Many users are asking why this function cannot be found after Windows Server 2008 is installed? Or is Hyper-V virtualization unavailable even if

FTP client Filezilla

FTPClient Filezilla. First install: Sudo apt-get install filezilla   The required components are automatically installed for you. Then, set the site. You can use the menu item "file"> "Site Manager" to add folders or sites. In the

Filezilla server settings

Filezilla serverOfSet: Download and install the server version. Click "Next" by default until the installation is complete. Then, complete the installation and configuration process by default. Next, you only need to pay attention to the following

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