Pay attention to Intranet security when the gateway disappears (1)

At present, some emerging vendors have proposed security policies for the new era. To narrow the distance between the Intranet and Internet, enterprises must bind network layer and application layer security together to control security from core

Difficult Choice: should we give up the network phone number for security?

The ancients cloud: the fish and the bear's paw cannot have both sides! In the real world, there are too many things that are difficult to possess at the same time. Recently, network security problems have pushed network phones to the teeth of the

51CTO user interview: Intranet security is always relative

Bkjia.com exclusive Article: Intranet security has always been the focus of enterprise security deployment. Due to the special nature of Intranet security, there is no unified management concept so far. With the current Intranet security issue, we

Intranet security requires you to know yourself and know that data leakage prevention is the key

This year's various data leakage events are numerous, highlighting the serious shortage of Enterprise Intranet security. When you constantly respond to external attacks and build a high wall for external security of the enterprise, have you ever

Step-by-Step Intranet penetration and domain fall

A few days ago, I got a shell from the station, windows2000 system. The Elevation of Privilege was successful, 3389 was not enabled, and 3389 was opened. After the server was restarted, lcx forwarded and 3389 logged on. After entering the server, we

How to customize a Secure Linux System Service Platform

How can we maximize security? Tailored, targeted, proper choice is the key. The following aspects are described in detail. Control file attributes and permissions Paying close attention to file attributes and permission settings is essential to

PHP + MySQL + IIS security platform III abnormal configuration in Windows (1)

Bkjia.com exclusive Article] after the first and second sections, we have learned about the basic configuration process of IIS + MySQL + PHP and the basic permission settings for Windows. In this part, we need to discuss the security configuration

FreeBSD uses IPFW to restrict the use of QQ in LAN

QQ servers are divided into three types: 1. UDP 8000 Port Class 7: the fastest speed, the most server. When QQ goes online, it will send UDP data packets to the seven servers, and select the one with the fastest response speed as the connection

In-depth analysis of Linux Firewall

In the analysis of network security, Firewall is frequently emphasized, its basic function is to filter and possibly block data transfer packets between a local network or a part of the network and the Internet ). Data packets are actually data in

Brief Introduction to operating system security protection: Linux

Linux, as a symbol of freedom and openness, has received more and more attention from users. However, there are few individual users who actually use Linux, mainly because of its system characteristics and a small number of surrounding software

Overview of internal and external security in Linux

It is impossible to maintain a completely secure system. However, as long as you work hard, it is possible to make the Linux machine safe enough, And let most occasional hackers, script-kiddies) and other "bad guys" Stop and target others. Remember:

Create a UNIX Backdoor)

The simplest method is to add an account with a UID of 0 to the passwd password file. But it is best not to do this, because as long as the system administrator checks the password file, it will be "missed. The following is a C program that adds a

Make sure that the computer can be started only after the USB flash drive is inserted into the computer.

To ensure the security of your computer and prevent others from opening your computer to view your private information, in addition to setting your personal password, you can also use simple settings to enable the computer to be started only after

Basic server security configurations (Windows) from the perspective of intruders)

Since our defense is from the perspective of intruders, we need to first know the intrusion methods of intruders. Currently, the most popular web intrusion methods are to obtain the website's webshell first by looking for program vulnerabilities,

New system Backdoors that can be left in windows

Given that the shift backdoor has been noticed by the Administrator, this program is written using a high-contrast auxiliary tool that can be called remotely.Left Alt + Left Shift + PrintScreen (screenshot key, usually on the upper right of the

Using the Linux system IP address to resist hacker attacks

Firewalls can be divided into several different security levels. In Linux, because there are many different firewall software options, the security can be low and high, and the most complex software can provide almost no penetration protection

MSN reproduction of large-scale drop-down Beijing and Tokyo All-in-the-middle tricks (photos)

Bkjia.com exclusive Article] on August 29, August 17, the MSN service in Beijing suddenly fell offline and could not be connected. It is understood that the MSN service in Beijing has been paralyzed and the reason is still under investigation. At

Network security solution for industrial standard servers

Challenges: In China today, the Internet is getting deeper and deeper into our work and life. Companies are redefining how they communicate with users, sell products, and establish business relationships. As companies use the Internet to create new

Use Windows command line to protect system security (figure)

As a network administrator, you may use many network management tools. Today, let's take a look at some command line tools that come with Windows. These tools have not been fully valued by us. Although powerful, it is "free" and easy to use. As a

Tips for protecting Linux System Security

When you use a Linux operating system to handle security issues, the following rules and techniques may be useful. 1. Avoid regular work when logging on as root. This reduces the risk of virus infection and prevents you from making some mistakes. 2

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