What does SSL acceleration and F5 mean?

F5 is ready to go to a multiplayer room in a flying car.

Load balancing is actually a network technology, which is mainly based on the existing network structure, increasing throughput, strengthening network data processing capabilities, and improving the flexibility and availability of application systems. It can optimize the algorithm and support the best strategies such as round robin, least connection, and sourse IP to reasonably distribute user traffic.

The F5 load balancing system supports the N+M cluster multi-active architecture, and the load balancers in the same group can freely allocate the "active" and "standby" ratios, and can specify the takeover order of multiple load balancers in the group, which completely solves the problem of low utilization of two cold standby devices in the 2+2 mode. At the same time, applications can be published on different active devices, and when the device fails, the load balancer device in the same data center can be designated to take over first, which brings the advantage that the active-active data center business is no longer centralized, and all business traffic does not have to be aggregated to one data center for redistribution. It avoids risk concentration and balances the service traffic between two data centers at the same time.

The application delivery network implemented by F5 DNS and LTM enables flexible traffic load and seamless handover between data centers, and intelligent traffic management and distribution within data centers. The two-layer logic algorithm of DNS not only selects the data center Internet interface with the best user experience for customers, but also loads and balances Internet traffic to multiple data centers at the same time. When a data center Internet interface fails, customer traffic can be immediately directed to the next best data center Internet interface.

In the data center, the new "N+M" Clustr architecture not only solves the problem of application concentration risk, but also provides flexible application deployment and seamless service switching, adding vitality to the application delivery network of the active-active data center.

Load balancing (also known as load balancing) means balancing and distributing the load (work tasks) to multiple operating units, such as web servers, FTP servers, enterprise critical application servers, and other mission-critical servers, so as to jointly complete work tasks.

A load balancer is not a basic network device, but a performance-optimized device. For network applications, load balancing is not necessary at the beginning, but only when the number of network application visits continues to grow, a single processing unit cannot meet the load demand, and the network application traffic is about to become bottlenecked.

F5 company's products in this area include WAN load balancing, link load balancing and local traffic load balancing, etc., the exact name you can go to the F5 Chinese official website to check the F5 BIG-IP series, such as F5 BIG-IP Enterprise Manager, F5 VIPRION Application Delivery Controller, F5 WanJet WAN Accelerator, F5 BIG-IP Web Application Accelerator (Web Accelerator), F5 BIG-IP Local Traffic Manager (LTM), F5 BIG-IP Link Controller (LC)....

In the Chinese market, F5 was the first to put forward the concept of load balancing and application delivery, and after years of hard work, F5 has maintained a close cooperation in R&D investment, and has cooperated closely with many partners, such as VMware, Microsoft, etc., in the early stage of any new technology development.

If it's an HTTPS request, it can only handle three requests per second, and the CPU load increases dramatically, up to a CPU usage of around 95. In order to solve the above problems and improve the processing capacity of the e-commerce server, the SSL acceleration solution has appeared, and the heavy, extremely easy to consume the server CPU resources exchange certificate, negotiate the encryption algorithm and the key, and the encryption and decryption work of the data are unloaded from the e-commerce server to itself to process through the special e-commerce encryption and decryption acceleration equipment, so the performance of the e-commerce server can be greatly improved. And this process is transparent to both the client and server side.

F5 BigIP WebAccelerator provides the following dynamic data offloading capabilities: SSL Acceleration—offloads compute-intensive SSL encryption and decryption, reducing server processor usage by up to 50%. Key creation and storage, SSL certificate management, and FIPS SSL support can be consolidated.

The BIG-IP WebAccelerator stand-alone 3600 device runs on the F5 TMOS architecture and supports 5000 TPS with default hardware configurations.

Nowadays, all e-commerce transactions in the world are based on two international standards: SET and SSL, with the popularity of e-commerce and online transactions, SSL has almost become the de facto encryption standard, that is, most of the e-commerce servers are HTTPS servers. When a client uses the HTTPS protocol to access the HTTPS server, the server performance will drop sharply because the two parties have to exchange certificates, negotiate keys, and encrypt and decrypt the transmitted data.

Installing an SSL certificate and using the HTTPS protocol can slightly improve the loading speed of web pages and open web pages faster. I don't know if what you want to say is this, about the SSL certificate, you can find GDCA to understand.

I often talk about http compression, what does http compression mean? What does HTTP compression and F5 mean? I've looked up and sorted out the relevant explanations of http compression and f5 as follows:

http compression:

Given the limited bandwidth on the Internet, any effort by network governance staff aimed at accelerating access is valuable. One of the ways to do this is to use HTTP compression technology to accelerate access speeds, which significantly improves performance by reducing the amount of data transferred between the server and the client. Data compression itself is not new.

However, this method is characterized by the fact that the compression of data between the server and the client is real-time, and few users are aware of this method. HTTP compression, which requires no client-side configuration, is one of the easiest ways to increase network speed.

F5: F5 is named after the highest level of tornado wind, F5 is the world's leading manufacturer in the field of application delivery network (ADN) technology and solutions, easy to achieve high-performance application delivery, F5's solutions include: application delivery network (ADN), server load balancing, link load balancing, multi-site load balancing, web acceleration and application security, local traffic management, disaster backup, WAN transmission optimization, SSL VPN, ISP mutual access and interoperability, remote secure access access, File storage virtualization, multi-link access, remote secure access, and more.

How do you cherish the people around you who look a little naïve??

Business continuity and high availability have always been the lifeblood of an enterprise. It's hard to imagine the serious consequences of an outage in a bank's information system, even for an hour. According to authoritative statistics, nearly 43% of companies that have experienced sudden and major disasters have gone bankrupt, and the other 51% have closed their doors within two years.

To ensure 24/7 disruption to critical services, cope with fierce market competition, and improve customer satisfaction, enterprises must build IT systems around the theme of "continuity" and implement business continuity disaster recovery backup plans, including business continuity, high availability management, disaster recovery, data protection and recovery, security, etc. Based on the above considerations, many financial industries around the world have adopted the database center disaster recovery and high availability solutions provided by F5, through the use of F5 related products with multi-ISP access, DWDM (wavelength division multiplexing) connected two data centers, multiple servers and multi-level HA solutions under construction, enterprises in the financial industry can achieve the goal of server load balancing and HA, ISP access link disaster recovery, IDC disaster recovery and multi-data center collaboration. It ensures disaster recovery and high availability of the data center.

Challenges in data center operations.

Challenge 1: SLA challenges faced by data centers.

Data centers have established SLA indicator systems and service level management processes, and refined and implemented SLA standards. However, the following questions remain tricky.

First, the open system lacks effective SLA management means for application systems. The number of open platform application systems in data centers is huge, and there is a trend of accelerated expansion in recent years, but the overall resource scheduling and SLA guarantee are still in the stage of manual and manual maintenance, and there is a lack of effective means for SLA control at the application system level.

The second is the contradiction between hardware, system software version, application version maintenance and upgrade and SLA. When maintaining or upgrading hardware, system software versions, and application versions, it is necessary to start and stop their respective power supplies, operating systems, system software, and applications. Since many business systems have not yet achieved load balancing, when maintaining and upgrading, considering that it will affect the external service of the application system, each change can only be selected during non-working hours, and if it is a 7 24-hour service system, it will definitely affect the SLA.

Challenge 2: Massive investment and uneven resource utilization.

Bank data centers need to support business operation and maintenance across the country, and the investment is huge. Because the data center allocates the system based on applications, the resource usage of each partition is quite different, resulting in an uneven resource utilization rate in the data center. In order to ensure the normal use of the application, the system will apply for sufficient resources in advance before going online, which often exceeds the actual needs.

To a certain extent, it will cause waste of resources and increase O&M costs. How to use resources rationally and economically is a major challenge in the future construction of data centers.

F5 analyzes that the use of encrypted traffic is increasing, and traditional approaches that rely on firewalls, intrusion prevention systems, and detection systems may not be able to meet the needs of the increased use of SSL. Therefore, the current SSL technology needs to provide traffic visibility and intelligent control. At the same time, the use of Layer 7 security devices to intelligently decode, distribute, and divert SSL traffic before the security layer of the IT architecture can improve security while reducing the pressure on other security devices and improving performance.

In addition, F5's deep accumulation in the field of application delivery makes F5 more adept at behavioral analysis of application traffic, and it is also an effective SSL optimization solution that F5 has been verified by a large number of users around the world.