Cloud Security

This article describes how to use basic security measures to make your Linux system reliable.Bios Security You must set a password for the Bios to prevent starting from a floppy disk by changing the startup sequence in the Bios.This can prevent

The default security level of Linux is 0. If you upgrade it to 1, the system security can be improved to a certain extent. when the security level is 1, it will disable immutable and append-only bits of files in the ex2fs system, and prohibit

Computer systems and information security problems must be solved in the information society. The emergence of a large number of Internet applications makes this problem more prominent. Recently, with the occurrence of the PIII serial number and the

First, enter "c: \ Windows \ inf \ sysoc. inf" in "run" in the "Start" menu. The system will automatically open the sysoc. inf file using notepad. In sysoc. inf finds the "[Components]" section, because it is a simplified version of XP, so there are

6. IPtales firewall rulesAssume that our server server1 runs Apache and sshd (sshd can be modified in the configuration file without running on the standard port ). The ethO Nic is connected to the Internet, and the ethi is connected to the LAN. The

First, describe how to install and prepare the tool-unzip some compressed files in Linux:Tar xvf *. tartar compressed package)Tar zxvf * .tar.gz (packages compressed by tar and gzip)Unrar x *. rar unpack_path (the unpack_path package for rar

With the development of the network, security technologies have emerged one after another. Currently, the most common and mature technologies are to use FIREWALL to improve security. The definition of FIREWALL is benevolent and wise, I personally

Backdoor IntroductionA technology used to facilitate next entry after intruders fully control the system.You can modify the system configuration file and install a third-party backdoor tool. It is concealed and can bypass system logs and is not

As a multi-user, multi-task operating system, once the files in Linux are deleted, it is difficult to restore. Although the DELETE command only marks the deletion in the file node and does not actually clear the file content, other users and some

Running BIND on chroot improves security. This article has been tested on Debian Sarge. You can modify other versions as needed.If you have not installed BIND, run the following command to install Bind 9. Code:apt-get install bind9

In small and medium-sized heterogeneous networks, many users choose Linux as the network operating system and use its simple configuration and user-familiar graphical interfaces to provide Internet services. Telnet is one of the services it provides.

In an object-oriented system, when an object receives a message, a series of events may occur. Generally, these events are processed in synchronous mode: The Calling process or the thread that sends a message to this object receives and processes a

An important aspect of any computer security measure is to maintain the operation of the actual control service. receiving requests from unnecessary network services will increase the security risks of the system. Even if these network services are

Some abnormal users try to migrate all activity records on the system (for example ~ /. Bash_history), but we can use dedicated tools to monitor the commands executed by all users. we recommend that you use process accounting to record your

It is of practical significance to restrict user root remote logon to ensure the security of computer systems. This article introduces some methods to restrict remote root logon. Method 1: Add a setting command in the/etc/default/login file.CONSOLE =

PrefaceUsing Linux + iptables as a firewall has high flexibility and stability (dude, my firewall has never been restarted since it was done), but it is troublesome to install and set it, and it is prone to errors, this article aims to use firewall

The database is the lifeblood of the Web. Due to security omissions of managers, it becomes the portal for attackers to intrude into the Web. How can we reinforce Web databases? Taking Access and MSSQL databases that are widely used as examples, I

Web ApplicationsIn a complex hybrid architecture, you can use a variety of different functions to manage risks related to these complex Web applications, which is an inevitable requirement of the company, in addition, the security of the underlying

WEB Server Security Strategy 1: switch roles and treat yourself as a possible Attacker Most of the time, if we only consider the problem from the perspective of the WEB administrator, we may not be able to find the WEB Server Vulnerability. On the

According to the latest news from the marketing department of Ren Zixing, the computer terminal Monitoring and Management System of Ren Zixing credit shield will launch the "Enterprise Edition" based on the previous "Professional Edition" for higher