Top 10 Intranet security vulnerabilities and countermeasures (1)

Currently, advanced network security devices are doing an excellent job in preventing Internet attackers from intruding into your business. But what do you do when the Internet wicked do enter your security environment? Unfortunately, all the means

Seek technical advice to solve Intranet security problems

Intranet security background analysis In the real world, there are indeed many internal network security dilemmas caused by technical factors, the most important of which is the hybrid platform issue. Even in some small enterprises, there may be

Information Leakage Prevention: how to identify the right side (1)

Currently, there are numerous information leakage prevention solutions, and many products with the anti-leakage function are publicized. However, enterprises are often dazzled and at a loss in the face of many solutions. What kind of system is a

Intranet penetration Problems

Question 1: Cross-origin penetration In an intranet, the domain administrator permission of Domain a (a. AB .abc.com) has been obtained, and the entire domain has been controlled. Net view/domain: B shows that many machines exist in B domain (B. AB .

Linux security management 10 key points (1)

Linux has powerful networking capabilities, and its TCP/IP code is the highest level. Linux provides full support for the current TCP/IP protocol, and includes support for the Next Generation Internet Protocol IPv6. A large part of machines

How to securely add system users through WEB

On the Internet, we can see some solutions for directly adding system users through php. These methods are all saved in the script system's Superuser password? Security issues. The method provided here is to add a user to the mysql database through

RedHat Linux manual creation of RAID and LVM partitions

RAID 5 is used as an example)1. First, we need to create a new disk partition. #fdisk /dev/hda Create 3 MB of hda7, hda8, hda9), enter t under the fdisk command, select the created partition, and enter fd, convert the three created

How to use Linux LiveCD to evaluate System Security (2) (1)

Figure 1. Auditor tool WhoppixLike Auditor, WhiteHat Knoppix is also a penetration test pengtest tool. Whoppix was born because its developer Muts was asked to perform an internal penetration test on a large organization. He explained, "the

FreeBsd5.4 + pf + squid reverse proxy practical notes (1)

1. hardware configurationHp netserver 800 P Ⅲ 1000 memory 256 M Inter82559 two NICs2. Partition Information Filesystem Size Used Avail Capacity Mounted on/dev/da0s1a 248M 54M 174M 24% /devfs 1.0K 1.0K 0B 100% /dev/dev/da0s1f 4.8G 130M 4.3G

Tips for hardening Linux servers (1)

As we all know, network security is a very important topic, and servers are the most critical link in network security. Linux is considered to be a safer Internet server. As an open-source operating system, once a security vulnerability is found in

How to restore user passwords in Linux

There are many reasons that may result in the loss of user passwords, which may not be a problem for the system administrator. You only need to log on with the root account and use the passwd command to change the user password. But what if the root

Cut the road to intrusion and shut down special shared resources of Microsoft.

When you use your computer, you generally pay more attention to the security of shared folders created by you. Most users specify full or read-only access as needed and set the password, pay great attention to preventing intrusions from irrelevant

Use the GetHashes software to obtain the Windows Hash password (1)

Bkjia.com exclusive Article] for intruders, obtaining the Windows Password is a crucial part of the entire attack process. Having the password of the original user of the system makes Intranet penetration and control easier. Windows System Hash

Two common traps of server virtualization and Their Countermeasures

Virtualization is regarded as a panacea for solving many enterprise IT problems. From enhanced application availability to simplified disaster recovery, to reduced infrastructure and costs, virtualization seems to provide all the answers.

A few tips to thoroughly enhance the stability of Windows File Protection

"Destruction" Ideology Let's talk about the idea first. If you have the idea, everything can be done well. Note the title of the dialog box in "Introduction". Is it "Windows File Protection. Let's start with it. There are two methods. One is to

Most Linux package managers have security risks

Software bugs often lead to security vulnerabilities, and the package manager can be used to automatically upgrade and install software and fix previous vulnerabilities. however, if the package manager is no longer secure, the entire system may be

Secure use of RedHat Linux

This article describes some basic security measures that enable you to use Linux more securely and focus on the secure use of Red Hat Linux. BIOS Security Remember to set a BIOS password in the BIOS settings and do not receive the boot from a floppy

How to Use the sniffer TcpDump to analyze Network Security

In such a network system, as the importance and complexity of the network grow, as a network engineer, monitor, analyst, or network performance evaluator, your role is crucial to the company's success. To better complete the work, you need to view

Use chattr to improve the security of the ext2 File System

Introduction As we all know, the Linux kernel has a lot of security features. Many of these features are widely used, but most System Administrators (including some senior system administrators) Ignore the attribute of the EXT2 file system ). This

Effective and reasonable strategies for UNIX Network Security

Most of the Business Systems of the financial system are UNIX/XENIX Operating Systems and TCP/IP network platforms. The author takes sco unix 3.2V4.2 as an example to discuss how to enhance the security management of UNIX network systems. The

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