Redis Research (13)-security and communication protocols, redis research communication protocols
I. Security
Salvatore Sanfilippo, author of Redis, once published the Redis declaration, which mentions Redis to be concise and beautiful. Redis does not do much work at the security
In the preceding correspondence, the hash function is representedHash (x) = x % 10. That is to say, to give a three-digit number, weTake the last bit of itAs the hash value of the three-digit number.
Hash Tables are widely used in computer science. For example:
For more information about how to broadcast packets with a small horn (Ethernet and Wi-Fi protocols)
Checksum in the IP protocol: see my best effort (detailed description of the IP p
WCF provides a rich set of pre-binding protocols. These pre-binding protocols have developed the corresponding security mode at the beginning.
This document lists the Security modes and verification methods of common protocols.
1. basichttpbinding
Initial
Concept of security protocol and Authentication Service security protocol for information security HTTPS concept
The HTTPS full name hypertext Transfer Protocol over Secure Socket layer is an SSL/TLS-based HTTP protocol located at the application layer. The HTTP protocol for the application layer? The SSL/TLS protocol for the Transport layer.
SSL/TL
IPsec is designed to solve some basic security problems of IPv4. To solve these problems, it implements four services: Data Transmission encryption, data integrity verification, data source authentication, and data status integrity. To implement these services, IPsec VPN introduces many protocols. In this article, you will learn how to implement the IPsec security
network. However, the WEP security mechanism is relatively easy to crack. Although you are aware of these warnings, if you still want to use WEP shared key authentication, you can follow these steps:
Open Network and Sharing Center by clicking the Start button-and then clicking Control Panel-. In the search box, type the network, and then click Network and Sharing Center-click Set up a new connection or network-click manually connect to wireless net
We know the excellent performance of IPV6 network protocol, and the most widely known is that it solves the problem of address resource depletion. However, it has other advantages in many ways. The following describes the security of IPV6 network protocols. I believe this is also a matter of concern to everyone. With the development of China's routing industry, the router technology is constantly updated an
For network security, this is a more complex structure and engineering. Many factors can affect our network environment. In the network, we define various network security protocols for effective protection. Next we will compare and analyze different protocols.
SSL and IPSec
(1) SSL protects the
handshake protocol.
SSL is developed by Netscape to protect Web communication. The current version is 3.0. The latest version of TLS 1.0 is a new protocol developed by IETF (engineering task group). It is based on the SSL 3.0 protocol specification and is a later version of SSL 3.0. The difference between the two is very small. it can be understood as SSL 3.1, which is written into RFC.SSL (Secure Socket Layer) is developed by Netscape to ensure the securit
Wireless network technology is growing, but how can we use encryption protocols to ensure the security of wireless networks? This shows us how to set security.
With the increasing maturity of wireless communication technology, the price of wireless communication products is falling, and wireless LAN is gradually entering thousands of households. However, wireless
that the Redis client communicates with Redis, and the communication protocol specifies the format of the command and return values. Understanding the Redis communication protocol not only allows you to understand the format of the AoF file and the contents of the master database to be sent from the database during master-slave replication, but also to develop your own Redis client (although there are corresponding Redis clients in almost all common languages). There is really not a lot of oppo
addition, the widespread use of IPsec will make the work of the Information Security Department more difficult, because they can no longer use the firewall for encrypted traffic, the firewall is invalid ).
As for Layer 2 secure Ethernet, we all know that there are many ARP problems in IPv4, among which it can maliciously redirect traffic. IPv6 also has a very similar problem, but the name has changed: NDPNeighbor Discovery Protocol) poisoning, rather
Some of our commonly used network applications, such as e-commerce, are implemented at the network application layer. So how can we ensure security in the application layer protocol? In this regard, we will mainly discuss the SET protocol. First, let's take a look at the security protocol environment on the Internet.
It is an important issue for e-commerce to handle e-commerce on the Internet and ensure the
When you deploy IPv6 in a WAN, an IPv6 firewall is also deployed. This article introduces some security issues caused by IPv6 and the problems that IT professionals should consider when deploying and operating IPv6 firewalls.
Introduce IPv6 Firewall
The first line of defense for most enterprise networks is a firewall, which is used to defend against public Internet attacks and restrict access to the public Internet of local users. After IPv6 is deploy
Can you help me understand the differences between WPA2 and Cisco LEAP security protocols? Which one is better, more convenient, or safer?
Cisco's LEAP (lightweight Extensible Authentication Protocol) is a variant prior to the approval of a proprietary IEEE 802.1X port access protocol standard. 802.1X is a framework that allows an identity recognition server to verify the certificate of the wireless user be
httpd, we run the make command after the end, go into the 07_httpd folder to view, found that there is no generation httpd this file, detailed see three:Figure three Questions oneWorkaround: Run the make command again to get the prompt "can ' t open output file. /bin/httpd ", you know, in our current 07_HTTPD folder in the parent directory WS does not exist in the Bin folder, so the command is not allowed to enter the WS/BIN/HTTPD path, thus, We chose to use mkdir, the command that created the
With the development of technology, wireless Internet technology is becoming more and more mature and common, and Wifi coverage is also growing. One thing I like to do over the weekend is to come to the coffee shop and make a cup of coffee, turn on Windows 7, connect to Wi-Fi, and enjoy the Internet world.Wi-Fi is a technology that can connect PCs, handheld devices (such as PDAs and mobile phones) to each other wirelessly. It provides users with wirel
With the development of science and technology, wireless internet technology is more and more mature and popular, and WiFi coverage point is more and more, I like to do a weekend thing is, came to the café, bubble a cup of coffee, open Win7 computer, connect Wi-Fi, enjoy the world in the network roaming.
The so-called Wi-Fi, is a personal computer, handheld devices (such as PDAs, mobile phones) and other terminals to connect to each other wireless te
by hackers. ”
It is understood that hackers use the attack equipment in a large number of online sales, and the cost is very low, only need hundreds of yuan. Their learning costs are not high, read some instructions can be used, a computer level is not high people can become a hacker in a short time. The lower the cost of WiFi fishing, the greater the security risk that ordinary netizens face.
Nowadays, WiFi is getting wider and wider, and home users, public places, buses, and subways all have their shadows. But is WiFi secure in public places? Free Wifi "lunch" is more delicious-SSL certificates Ensure network security. In the information age, WiFi has become an
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