Recently, several friends from large factories came to me and asked the same question: Can a high-defense CDN be privatized and deployed? To be honest, if this question were to put aside five years ago, I would have thrown a direct line \u201cdo not think about it, go to sleep\u201d. But the situation at that time and now are completely different things.<\/p>\n
When the high-defense CDN is basically a standardized product, the service provider node resources packaged into packages to sell out, you either accept the whole package or another please smart. But now it's not the same, I found that the market has been divided into two very different routes - public cloud model and privatized model, like the difference between automatic and manual gear, each with its own application scenarios.<\/p>\n
Let's start with a real case. Last year, a financial customer was hit by DDoS can not take care of their own lives, the peak traffic rushed to 800G or more. Used a well-known public cloud CDN, the results of the other side directly to them to engage in traffic cleaning, business is saved, but the delay soared to 300ms +, the user complaint phone is almost burst. Later, when I inquired about it, I realized that the public cloud resource pool is prioritized to protect VIP customers when encountering a big attack, and ordinary customers have to wait in line for scheduling.<\/p>\n
This is the core of the problem - the public cloud high defense CDN is essentially a multi-tenant shared resource pool, and it is inevitable that there will be a scramble for resources in the event of an attack. Don't look at the service provider's commitment to the protection of the value of the sky, really to the critical moment, your business priorities may not be as good as the next door to the annual package of millions of large customers.<\/p>\n
Privately deployed high defense CDN is a completely different dimension solution. Simply put, the CDN node is deployed directly to your own server room or a designated hosting center, and all computing, bandwidth, and protection resources are exclusive. This is like chartering a movie, do not have to worry about someone grabbing a seat with you, and do not have to worry about the neighbors to spread popcorn on you.<\/p>\n
But don't believe that \u201cprivate deployment is suitable for all enterprises\u201d this kind of nonsense. I have seen the most pitiful case is a medium-sized e-commerce listen to the sales flimflam, hard on the privatized CDN, the results of the initial installation fee alone spent eight hundred thousand, and then have to pay the annual maintenance fee of 40%. Finally found that their business is not up to the level of the need for exclusive resources, purely to spend money to buy a psychological comfort.<\/p>\n
Now on the market does have some service providers to support private deployment, but the way to achieve a lot of different. For example, CDN5 engaged in hardware and software all-in-one program, directly to you to send a few custom servers over; CDN07 play is a pure software licensing model, allowing you to deploy their own hardware; 08Host even more absolute, engaged in a hybrid cloud model, usually with the public cloud, the key moment to activate the private node shunt.<\/p>\n
When it comes to the technical implementation, the node synchronization issue is the biggest headache for me. Public cloud CDN configuration is globally synchronized, but the private deployment has to take care of the data synchronization. I remember once to a video platform to do the migration, just to refresh the cache configuration almost made me crash:<\/p>\n
This is only the basic configuration synchronization, really want to encounter urgent vulnerability repair, all nodes have to be rolling update. Once Log4j vulnerability outbreak, the team overnight to the global more than 40 private nodes to patch, operation and maintenance brother almost resigned on the spot.<\/p>\n
Security policy configuration is also a technical job. Public cloud CDNs are generally point-and-click graphical interfaces, while private deployments often have to dislike configuration files directly:<\/p>\n
To be honest, this configuration is more than an order of magnitude higher than the requirements of the operation and maintenance team. Previously, a customer thought that everything would be fine if he bought a privatized CDN, and as a result, because of the misconfiguration, it led to the misinterception of normal users, and the UV fell directly to 30%.<\/p>\n
Again, there's the issue of cost. Public cloud CDN is usually billed according to the volume of traffic can also talk about discounts. But the private deployment of the initial investment can be scared to death - a vendor's quotation I have seen, a single node starting price of 500,000, not including bandwidth costs. Bandwidth is the real big head, exclusive 100G bandwidth annual fee enough to support several R & D teams.<\/p>\n
However, for enterprises with real needs, these inputs are worth biting the bullet on. A game company online privatized CDN, latency from 180ms down to 40ms, the player complaint rate directly down 70%. more critical is the encounter of DDoS attacks, no longer need to and other customers to grab resources, their own can be fully controlled cleaning strategy.<\/p>\n
Now support the private deployment of service providers are roughly divided into three categories: First, the traditional network security vendors, such as CDN5 such, the advantage is that the security capabilities of the precipitation of deep, but the degree of flexibility is almost meaning; Second, the cloud service provider on behalf of the CDN07, the technology stack is new, but it is easy to bind the ecological; Third, the 08Host this kind of professional CDN vendors, cost-effective, but the service response may be half a beat slower.<\/p>\n
Selection I generally recommend that customers focus on several indicators: node performance (request processing capacity per second), protection accuracy (false positive rate), scalability (can quickly expand capacity), and the most critical - operation and maintenance support response time. I have seen a vendor commitment to 7 \u00d7 24 hour support, really out of order but have to wait 2 hours before someone responds, the customer CTO almost put the server room to point.<\/p>\n
Deployment models are also very specific. Pure offline deployment is suitable for enterprises that are extremely sensitive to data, but it is difficult to update; hybrid deployment is more practical, with key data localized and rule updates sent down from the cloud through an encrypted channel. A government cloud project uses a hybrid model, which meets the equal protection requirements and allows timely access to threat intelligence updates.<\/p>\n
These days, even CDNs have to \u201cprevent teammates\u201d. Some service providers talk about private deployment, but secretly will steal data back to the cloud. So before signing the contract, be sure to let the legal department to the contract terms key clear, especially data ownership and operation and maintenance audit authority of these two pieces, otherwise it is to spend money to dig a pit for themselves.<\/p>\n
Finally, to tell the truth: privatization of high-defense CDN is like a private bodyguard, really safe and exclusive, but the cost is not the average enterprise can afford. According to my experience, unless at least two of the following three conditions are met, otherwise there is no need to consider privatization: the average daily traffic of more than 1TB, the business involves sensitive data, once suffered more than 500G DDoS attacks.<\/p>\n
I forgot to mention the most critical point - talent pool. To engage in private CDN needs at least 2 senior operations and maintenance engineers, both to understand the network and to understand the security also have to be tuned. Seen the most tragic case is an enterprise smashed millions of deployment of private CDN, and finally because no one will be operation and maintenance, can only let the original engineers operate remotely, which is equivalent to spending millions of dollars per year to raise an invisible team.<\/p>\n
So back to the original question: do high defense CDNs support private deployments? The answer is yes, but just like buying a customized sports car, you need to be able to afford both the money and the team. If you are still torn on the privatization, my suggestion is to find CDN07 such service providers to try a hybrid cloud solution, such as business volume up to consider completely private. 08Host elasticity program is also good to support the smooth migration from the public cloud to the private deployment, to avoid a one-time investment in the overly large.<\/p>\n
After all, business is not an arms race, the most suitable solution is the best. Sometimes public cloud CDN add a few more layers of security strategy, can also achieve unexpected results, there is no need to \u201cexclusive\u201d two words blindly chasing high. Save money to hire a few more security engineers, perhaps more than any high-end programs are useful.<\/p>","protected":false},"excerpt":{"rendered":"
Recently, several friends from large factories came to me and asked the same question: Can a high-defense CDN be privatized and deployed? To be honest, if this question were to put aside five years ago, I would have thrown a direct line \u201cdo not think about it, go to sleep\u201d. But the situation at that time and now are completely different things. When the high-defense CDN is basically a standardized product, the service provider node resources packaged into packages to sell out, you either accept the whole package or ask for help. But now it's not the same, I found that the market has been divided into two very different routes - public cloud mode and private mode, like the difference between automatic and manual gear, each with its own application scenarios. Let's start with a real case. Last year, a financial customer was hit by DDoS and couldn't take care of themselves, and the peak traffic rushed to more than 800G. Used a well-known public cloud CDN, the results of each other<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"gallery","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[150],"tags":[],"collection":[],"class_list":["post-935","post","type-post","status-publish","format-gallery","hentry","category-updates","post_format-post-format-gallery"],"_links":{"self":[{"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/posts\/935","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/comments?post=935"}],"version-history":[{"count":1,"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/posts\/935\/revisions"}],"predecessor-version":[{"id":1191,"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/posts\/935\/revisions\/1191"}],"wp:attachment":[{"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/media?parent=935"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/categories?post=935"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/tags?post=935"},{"taxonomy":"collection","embeddable":true,"href":"https:\/\/www.ddosgj.com\/en\/wp-json\/wp\/v2\/collection?post=935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}