top security certifications

Looking for a job is not good. I will review the thread and signal sections of apue (the third edition) during the 11th holiday. I will finish the review in two days. The sections 10.6 and 12.5 in the book are the re-entry introduction of signals and threads. However, it is hard to fully understand the concept of asynchronous signal security, thread security, and reentrant. Write down this article. Reentr

As a network administrator, do you know what is happening on your host or server--who has visited it. What they have done. What is the purpose. What the. You don't know. In fact, Windows 2000 to provide us with a security audit function, we do administrator this line, the most need to be familiar with this function, otherwise you how to tube it. Security audits can record several

Personal feeling more useful article about the server security recommendations, many places will be ignored, where the author will be listed, easy to view, configure the server to look at the attention point, very good.Excerpt from: Siyizhu ' s weblogPrimary safety Articles1. Physical SecurityThe server should be placed in the isolation room where the monitor is installed, and the monitor should keep the camera record for more than 15 days. In additio

Guide MySQL is used in more and more business, in the key business of data security requirements are also higher, how to ensure MySQL data security? Data security if only the MySQL application level is clearly not enough, it needs to be protected at multiple levels, including network, system, logic application layer, database layer and so on.Here are some of th

The Art of War Yue: Tse, Baizhanbudai. The confrontation between work and defense is the subject of information security, and understanding security attacks can better protect the security. This paper investigates the network information security attack, through understanding the path of hacker attack and technical mea

operations, the security mechanism adopted is very flexible, At the beginning it looks a bit complex, however, the actual principle is relatively simple. Although there are almost no cardos products in the Chinese market, it is helpful to understand the early-stage smart card security mechanism. Cardos uses half-byte as the security status, except for 0

1. Lock important system files System O M personnel may sometimes encounter situations where the root user cannot modify or delete a file. Most of the reasons may be that the file is locked. In Linux, the command for locking a file is chattr. You can use this command to modify the file attributes in the ext2, ext3, and ext4 file systems. However, this command must be executed by the root user. The command corresponding to this command is lsattr, which is used to query file attributes. Modifying

VoIP has many security risks and faces many security threats, but this does not mean that the security of VoIP is irretrievable. In fact, with the frequent occurrence of security events, many VoIP manufacturers are also accumulating experience in practice and using some measures to guarantee the

Wireless networks are becoming more and more mature, but how can we enhance the security level? This requires us to understand the network security level. On the one hand, network security is ensured by encryption. The following describes common wireless network encryption methods. Through the introduction of these encryption methods, you can learn how to set up

Improper security of user accounts is one of the main means to attack and intrude into the system. In fact, careful account administrators can avoid many potential problems, such as choosing strong passwords and effective policies to enhance the habit of notifying users and assigning appropriate permissions. All these requirements must comply with the security structure standards. The complexity of the impl

Smart Device Security: China's online smart device Security Situation Report in 2017, and the situation report in 2017 Smart Device Security: China's online smart device Security Situation Report in 2017. In recent years, security incidents of online smart devices have occur

Currently, hacker attacks have become a serious network problem. Many hackers can even break through SSL encryption and various firewalls to attack websites and steal information. Hackers can use their browsers and several techniques to obtain customers' credit card information and other confidential information from websites. As firewall and Patch Management has gradually become more standardized, various network facilities should be more complete than ever before. Unfortunately, hackers have b

based on cloud computing technology, the security dog clothing cloud is the best server security operation Cloud Platform in the cloud era in the early 2014 , and its "cloud security, new operations" approach provides users with all the services they need for server security. Secur