Secure Connection: Use SSH instead of Telnet

If you have been using Telnet to control network devices, you can consider other safer methods.This document describes how to replace Telnet with SSH.Using Telnet, the TCP/IP protocol used to access remote computers, to control your network device

Cracking passwords of all. mdb versions

Password cracking for Access97 has been introduced on many websites and magazines. Here I will repeat it briefly. The 13 bytes at the 0x42 bytes of the mdb file are 0x86, 0xfb, 0xec, 0x37, 0x5d, 0x44, 0x9c, 0xfa, 0xc6, 0x5e, 0x28, 0xe6, or 0x13

Windows System Security Settings-elementary security

  1. Physical Security The server should be placed in an isolated room with the monitor installed, and the monitor should keep camera records for more than 15 days. In addition, the chassis, keyboard, and computer desk drawer should be locked to

Network spoofing methods and Attack and Defense

It is a very practical tactic to seduce the enemy. Many military strategists, politicians, and entrepreneurs have talked about this tactic in ancient and modern times and in Chinese and foreign countries. This tactic is no exception in network

Manual battle 3721 and Yahoo Assistant

When I browsed a webpage the day before yesterday, I was forced to install a bunch of rogue software such as 3721 and Yahoo assistant. Because my computer had a Lenovo one-click recovery function, I decided to manually delete the junk, after

"Phishing" Attack

Online fraud has a nice name-Phishing. It is a combination of "Fishing" and "Phone". Because hackers started to commit crimes by Phone, so I replaced "F" with "Ph" and created the word "Phishing. The so-called "Jiang Taigong phishing, the bait", the

Beware of SMSS. EXE Trojans

SMSS. EXE (Session Manager Subsystem), which is used by the Session management Subsystem to initialize system variables. The MS-DOS driver name is similar to LPT1 and COM. It calls the Win32 shell sub-system and runs in the Windows login process. It

How to make the network invincible switch Security Six

How does one filter user communication to ensure secure and effective data forwarding? How can we block illegal users and protect network security applications? How can we conduct security network management to promptly discover illegal users,

System Security: fully concerned with the security of your UNIX Architecture

Undoubtedly, a company's Unix architecture is likely to be the most important part of all its IT problems. It supports your email system, Web server, and even your most important enterprise applications. Although Unix systems are extremely secure

Pay more attention to security issues in applications

In all aspects of information system security, there are too many things that require special attention from CIOs and CSO personnel. Many people have been numb to reminders from various aspects. However, the security experts should remind these

Defends against sniffing attacks from Sniffer

1. How to Find Sniffer The biggest risk of Sniffer is that it is hard to be found. It is easy to find a Sniffer in a single machine. It can be achieved by viewing all programs currently running on the computer, of course, this is not necessarily

Clear clues to prevent computer leaks

My friends who have read "jailbreak" must have a deep impression on Mahone, a high IQ agent. This guy picked up Michael's hard drive with a jailbreak plan from the bottom of the lake and restored the data through technical means. Mahone grasped all

No one can change my password. No one can steal it"

Many users have a headache for the loss of QQ passwords and the theft of online game accounts. They often install a lot of software and think of a lot of methods that will not help. So how do hackers steal user passwords and how should we prevent

Hierarchical relationship of Web security issues

We often hear a lot of information about security, which can be said to be varied. For comrades who are not very professional in network security, they are a little dazzled and cannot figure out the details. Here, I will help you sort it out. With

Analysis and Protection of buffer overflow Principle

In recent years, hacker attacks have frequently occurred, especially buffer overflow, which accounts for the vast majority of network remote attacks. this type of attack can allow anyone to gain full control of the system host, so it represents a

Safe use of online banking

As the stock market continues to heat up, the number of investors who trade through the Internet is increasing, and the number of users who use online banking as a means of transfer and payment has increased significantly. However, while enjoying

Guide to portable computer security protection

If you have been on a trip for a while, you may experience this kind of pain. When you get on the plane, you find that you forget an important baggage. If this luggage is your laptop, you may want to embark on a fantastic journey to Hawaii without

ARP Protocol defects and prevention of ARP Spoofing

ARP attacks are so rampant that arp attacks were often used to intercept nearly 20 thousand arp attacks a day.   I. Working Principle of ARP In TCP/IP, each network node is identified by an IP address, and the IP address is a logical address. In

Anti-Rootkit HOOK Detection Based on CallStack

MJ00112007-11-2Th_decoder@126.com Currently, Anti-Rootkit scans the Hook in the following methods: 1. Fight Against inline-hook, IAT/EAT Hook Anti-Rootkit uses the method of reading system files on the disk and relocating the map to detect the

ADS problems in NTFS

For a brief description of ADS, see the unfavorable aspects of NTFS. It can be seen that ADS has been concerned by some security personnel for a long time ago, and some classic applications have also been put forward, such as hiding files and hiding

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