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last_insert_id () function returns the newly inserted auto-increment value.Selectlast_insert_id ()from customer limit 1;This function can cause errors when multiple connections are in progress. ResetAutomatically increase the value of the counter:CREATE TABLE tablename (fieldname int auto_increment,[fieldname2 ...,] primary key (Filedname)auto_increment=50);ALTER TABLE TableNameauto_increment=50;If the reset value is smaller than the existing value, the auto-increment counter increments the co

ISEC released the first-stage security audit report of the encryption software TrueCrypt. The preliminary analysis showed that TrueCrypt did not find evidence of backdoor or other malicious code intentionally added. TrueCrypt is a popular encryption software, but has never been audited. After the exposure of NSA large-scale monitoring activities, security researchers initiated a complete security audit of TrueCrypt, which iSEC is responsible. Resea

positioning Assistance Section [d], and write appropriate assurance content. The updated 7th "warranty" was approved by the Alibaba Cloud ICP Filing Team and signed by the CNE Legal Department. After the three NSA targets are discovered, the CNE Legal Department adds them to the Cooperation Agreement form to permit intrusion. Initially, both the The Analysis and assurance work on the other five objectives has been completed. On April 9, October 30,

-wide services. Instead of elevating privileges wholesale to the entire program when needed ,! PolicyKit enables very fine grained isolation of higher privileges to small services or non-graphical utilities. this functionality is accessed by programs through a D-Bus interface in coordination with HAL, allowing administrators to control how users perform certain tasks, and which tasks they are allowed to perform. support! PolicyKit will be added to administrative tasks and tools throughout the di

Appearance A huge background, a shocking opening scene, the simultaneous launch of all new products, and the live broadcast of CCTV during peak conversations, anyone who sees all of this will have only one idea-Big Bang. After experiencing turbulence, silence, and accumulation for a long time, Lenovo Wangyu finally broke out. Based on the concept of providing services on demand, Lenovo Wangyu launched their "Next-generation Security Architecture (NSA

SELinux Security System Basics in CentOS This article will record some experiences and experiences of learning SELinux... 1. Introduction to SELinux SELinux (Secure Enhanced Linux) Security Enhancement Linux is a new Linux security policy mechanism developed by the National Security Agency (NSA) for computer infrastructure security. SELinux allows system administrators to define security policies more flexibly. SELinux is a kernel-level security mecha

Nine common methods to protect Linux System Security In this world, it is very important to ensure the security of Linux-based systems. But you have to know how to do it. A simple anti-malware software is far from enough. You need to take other measures to work together. Try the following methods. 1. Use SELinux SELinux is used to reinforce Linux security. With it, users and administrators can perform more control over access control. SELinux adds finer Granularity Control for access control.

"Secure Key Exchange Mechanism (SKEME )"· "Internet security regulations and key management protocols" proposed by NSA"· The "OAKLEY key decision protocol" proposed by Hilarie Orman" We once again stress that these draft agreements have more similarities than differences. Except MKMP, they all requireAn existing and fully operable Public Key Infrastructure (PKI ). MKMP does not have this requirement because it is false.Both parties know that a Master

Administrator, and implemented by the operating system. Security technical support is provided. Security tags are attached to objects. Therefore, each file, directory, and device has its own security tags and classification information. A user may have a Secret) access level. The data he wants to access has a Top Secret) security tag. In this case, the user is denied access because his security level is not equal to or lower than the security category of the object. Currently, the most common M

make the effort, you can build such a service yourself? Purchasing a third-party service may be a good choice. OpenVPN is not prepared for scientific Internet access. Many Chinese universities use OpenVPN as a basic network connection method, but some people find OpenVPN.net (the largest OpenVPN service provider) services can be turned over and free of charge, so it is becoming popular in China. It is rumored that the firewall can now identify and block OpenVPN.net traffic, and the

/wKiom1QQAibSq73RAAH6Wi0c_Dg910.jpg "alt =" wkiom1qqaibsq73raah6wi0c_dg910.jpg "/> The growth of encrypted traffic shows a trend of globalization. The growth in Latin America is even more exaggerated, from 1.8% last year to 10.37% this year. In China, the number of paid SSL certificates issued by wotong ca doubled from that issued in 2013. In August 2014, the free SSL Certificate product was upgraded (supporting all browsers and mobile terminals), and the number of signatures increased dramatic

md4. MD5 is more complex than md4, and the speed is a little slower, but it is safer and better in terms of anti-analysis and anti-difference performance. 　　(3) SHA-1 and others Sha1 is designed to be used together with DSA by nist nsa. It generates a hash value with a length of less than 264 for an input with a length of bits. Therefore, sha1 is resistant to brute force attacks) better performance. SHA-1 is designed based on the same principle as md

Google to prevent NSA monitoring, will be the keyword search encryption to promote global. Want to know if your search results are encrypted? Easy. Open Browser, enter Google , most browsers will automatically jump to Google Search Home (mainland users may not open, or jump to GOOGLE.COM/HK page)please pay attention to the result of the jump, carefully observe the URL: whether to "https://" the icon that starts with a small padlock next to it ( means

Key Management Protocol (IKMP), and the standardization of several other Protocols has been put on the agenda. Among them, the most important are:Standard Key Management Protocol (MKMP) proposed by IBM )""Simple Key Management (SKIP) for Internet Protocol" proposed by SUN )"Phil Karn's "Photuris Key Management Protocol""Secure Key Exchange Mechanism (SKEME)" proposed by Hugo Krawczik )""Internet security regulations and key management protocols" proposed by

) that helps to stop the crimes in the city. The show'll definitely give you chills.#5 Chuck .ChuckThe TV series was somehow popular and ran from 2013. The show shows the character of a young hacker and nerd who accidentally downloads US Govt, secrets to his brain and the Re is where the stories starts CIA and NSA agents protect him and at the same time exploit him.#6 Halt and Catch fireHalt and Catch FireSet in the 1980s, this series dramatizes the p

: configurable Security Random Number Generation Method JEP 124: enhanced certificate recall detection API JEP 129: NSA Suite B Encryption Algorithm Implementation JEP 130: SHA-224 message digest algorithm implementation JEP 131: The 64-bit Windows SunPKCS11 encryption provider JEP 140: privilege Restriction JEP 166: thoroughly overhaul the JKS-JCEKS-PKCS12 keystore Web/jaxp improvements: JEP 185: JAXP 1.5 (restrict access to external resou

Disable SELinux in CentOS/Linux SELinux (Security-Enhanced Linux) is the implementation of mandatory access control by the National Security Agency (NSA) and the most outstanding New Security Subsystem in Linux history. Under such access control system restrictions, a process can only access the files required in its tasks. SELinux is installed on Fedora and Red Hat Enterprise Linux by default (CentOS is also included ). Although SELinux is easy to

How to protect your linux operating systemGuideIn this world, Linux operating system security is very important. But you have to know how to do it. A simple anti-malware software is far from enough. You need to take other measures to work together. Try the following methods. Use SELinuxSELinux is used to reinforce Linux security. With it, users and administrators can perform more control over access control. SELinux adds finer Granularity Control for access control. Unlike specifying only who c

Centos 6.5 disable SELinuxSELinux (Security-Enhanced Linux) is the implementation of mandatory access control by the National Security Agency (NSA) and the most outstanding New Security Subsystem in Linux history. Under such access control system restrictions, a process can only access the files required in its tasks. SELinux is installed on Fedora and Red Hat Enterprise Linux by default (CentOS is also included ). Although SELinux is easy to use, we

Getting started with SELinux Back in the era of Kernel 2.6, a new security system was introduced to provide access control security policies. This system is Security Enhanced Linux (SELinux), contributed by the US National Security Agency (NSA). It introduces a robust Mandatory Access Control (Mandatory Access Control) for the Linux kernel subsystem) architecture. If you disabled or ignored SELinux in your previous Linux career, this article is speci