What is esc resource?

It is a cloud server product launched by Aliyun.

Cloud server ECS (ElasticComputeService) is an elastic and scalable cloud computing service that helps you reduce IT costs, improve operation and maintenance efficiency, and enable you to focus more on core business innovation.

Single instance availability up to 99.975%, multi-availability zone multi-instance availability up to 99.995%, cloud disk reliability up to 99.999999999%, can realize automatic downtime migration, snapshot backup.

Support for the creation of 1000 instances at the minute level, a variety of flexible payment options more in line with the current state of the business, while bringing elastic expansion capabilities, instances and bandwidth can be up and down at any time to allocate, the cloud disk can be expanded.

Free DDoS protection, Trojan horse detection and killing, anti-violent cracking and other services, through a number of international security certifications, ECS cloud disk support data encryption.

Single instance up to 128vCPU optional, memory 1TB, single instance performance up to 24 million PPS network first packet, 80Gbps bandwidth.

Rich operating system and application software, through the mirror can be a simple one-click deployment, the same mirror can be quickly replicated in multiple ECS environment, easy to expand.

ECS can be seamlessly integrated with a variety of rich cloud products from AliCloud, which can continue to provide complete computing, storage, security and other solutions for business development.

Huawei 6555e firewall configuration?

Integrated protection: combining traditional firewall, VPN, intrusion prevention, anti-virus, data leakage prevention, bandwidth management, Anti-DDoS, URL filtering, anti-spam, and other functions in a single package, with global configuration view and integrated policy management

Application identification and control: identifying 6,000+ apps, with access control precision down to the application function, e.g., distinguishing between WeChat text and voice. Application identification is combined with intrusion detection, anti-virus, and content filtering to improve detection performance and accuracy

APT defense: linked with the local/cloud sandbox to detect and block malicious files, encrypted traffic does not need to be decrypted, and linked to the big data analysis platform CIS to achieve threat detection of encrypted traffic, actively respond to malicious scanning behavior, and through the linkage of the big data analysis platform CIS Behavioral analysis, rapid discovery, record of malicious behavior, to achieve real-time protection of enterprise threats

Cloud application security awareness: can be fine-tuned and differentiated control of enterprise cloud applications, to meet the needs of enterprises to control the use of cloud applications by users.

Why do firewall connections often break?

Suspecting a DDOS attack,

1, briefly turn on the access logs to see which ip, and then deny those suspicious ip

2, limit off the IP address segments, or to the operator to buy traffic cleaning, anti-DDOS attack services

Generally the hardware firewall has a configuration of the second unit of the data flow and data connection to take out the ddos is generally configured through the upper limit,

similar to more than how many connections, immediately disconnect the connection. It's easy to accidentally damage software like bt. There is no radical solution.

If you can change a

Cloud servers

+ DDOS high defense (you can also use CDN price cost can be relatively low)

Cloud servers