Cloud Security

Linux provides us with an excellent firewall tool, netfilter/iptables (http: // www.netfilter.org /). It is completely free and can run well on a low-configuration old machine. Netfilter/iptables is powerful and flexible, and can be used to

One report said that although a BROADBAND company's existing technology can accommodate 400 to 6 million users, but currently, it can accommodate 0.45 million users, the network is already crowded, and network disconnection often occurs. As soon as

LIDS (Linux Intrusion Detection System) is a Linux kernel patch and system management employee lidsadm. It enhances the Linus kernel. It implements a security mode in the kernel-reference mode and the Mandatory Access Control command in the kernel

The increasing expansion of Linux application scope has attracted more and more attention in terms of security. Security is a complex and extensive problem. Here we mainly focus on Linux User Account Security, especially how Linux system

To control installation programs on the internet, you must configure the regional settings of IE browser. You can adjust the Internet Options in the tool menu. At the same time, you modified the Windows registry. However, to automatically change the

The optimal setting of IE security is a matter of wisdom. On the one hand, you want to set it safe enough to prevent your network from being compromised by spyware that can trick your customers into a sinister network. On the other hand, the more

A young Norwegian programmer recently discovered a Linux Bug. A simple C program can use this Bug to crash most Linux 2.4 and 2.6 suites on the x86 system.Sither, the discoverer of this Bug, said that if an attacker wants to crash the Linux system

We all know that the password verification on the FTP server is based on the plaintext, so it is easy to sniff. The virtual FTP server introduced in this article adopts the chroot method. Although it cannot prevent password sniffing, it can protect

When the file system is damaged, if the ext2fs file system is used, you can run the e2fsck command from the floppy disk to correct corrupted data in the file system. For other types of file systems, you can use the corresponding fsck command. When

Computers on the network can be easily scanned by hackers using tools or other means to find vulnerabilities in the system and then attack the vulnerabilities.By disguising the Linux system and setting system illusion for hackers, hackers can

1. Set the startup ServiceAfter installing the system, run # netstat-an to check that many network-related services are started by default, therefore, many ports are opened for LISTENING ). We know that the more open ports, the more likely the

One user and one groupLet's take a look at the Linux permission and ownership model. We can see that each file belongs to a user and a group. This is the core of the permission model in Linux. You can view users and groups in the ls-l list:

My server has countless SSH failure attempts every day, and some boring people keep scanning. These people are really boring, and they are full of food, I have been looking for some software to scan the website, so we need to remember to set up a

If you have multiple workstations, several machines that manage the Internet, or you need to connect to multiple networks frequently, you will find the tool for monitoring data packets useful sooner or later. New users may want to know how to use

Mainstream anti-rogue software vendors and some professional security vendors have launched their own products for rogue software, and note that these software seems to be public welfare software, all of which are free of charge, you can choose to

If you know yourself and know what you want, you can win a hundred battles. To improve Web Service Security, you must first understand the vulnerabilities of Web Services. Then, take corresponding measures based on the vulnerabilities. In this

Today, we will mainly discuss about Web application attacks. Currently, Web technology is widely used by customers and servers. As a result, hackers are increasingly attacking Web applications by using various attack methods, that is, they bypass

Traditional Chinese medicine believes that qi and blood stasis are caused by congestion in the body and obstruction of the vein. The symptoms of qi and blood stasis indicate fatigue, numbness, or cold. If a Web server is compromised by search

Today, with the rapid evolution of Web technology and the vigorous development of e-commerce, many new applications developed by enterprises are Web applications, in addition, Web services are increasingly used to integrate or interact with Web

WebsiteAppearsTrojanThe main cause is system, firewall, or website application vulnerabilities. The Network Administrator is responsible for reviewing the website and maintaining the normal operation of the website. From the perspective of the