Original link: https://www.williamlong.info/archives/7255.html
Recently, Volcano Engine, a cloud computing service under Bytedance, launched the “TrafficRoute DNS Suite” service the day before yesterday. It is reported that the “TrafficRoute DNS Suite” is actually a set of “public DNS” services that can provide domestic users with faster addresses. While analyzing the speed, it cooperates with services such as “traffic cleaning” and “IP blacklist” to resist external DDoS attacks.
It is reported that ByteDance’s public DNS adopts BGP Anycast technology. ByteDance currently provides multiple access points across the country, and requests initiated by users will be forwarded to the node closest to the user.
At the same time, the DNS will also cache the corresponding records. When a user request hits the cache, the resolution result can be returned quickly without sending a request to the authoritative DNS server, so as to improve the speed of address resolution.
According to the official website, the Volcano Engine TrafficRoute resolution scheduling suite provides full-link DNS services from public network to private network, from recursive to authoritative, and DNS-based traffic scheduling services, including cloud resolution (DNS), cloud scheduling (GTM) , Private network resolution (PrivateZone), mobile resolution (HTTPDNS), public resolution (PublicDNS).
According to the official product introduction, the public DNS provided by ByteDance adopts BGP Anycast technology, which has the characteristics of high performance, reliability, and security.
Currently, ByteDance has provided multiple access points across the country, and requests initiated by users will be forwarded to the node closest to the user. If the public resolution PublicDNS finds the corresponding DNS resolution record in the cache, the public resolution PublicDNS will return the cached resolution result. If the DNS resolution record corresponding to the DNS query request is not found in the cache, the public resolution PublicDNS will perform a recursive query.
If the query is successful, the public resolution PublicDNS will return the corresponding IP address. At the same time, the public resolution PublicDNS will cache the DNS resolution record. If the DNS query fails, the public resolution PublicDNS will return the corresponding error message.
Public resolution PublicDNS will not return wrong resolution results, nor will it hijack and redirect user requests.
In terms of security, the DNS uses anti-DDoS attack solutions such as traffic cleaning and IP blacklisting. ByteDance also emphasizes that it will never use public DNS to hijack users.
Currently, the DNS service only supports IPv4 protocol, the primary DNS IP is 180.184.1.1 (Beijing), and the backup is 180.184.2.2 (Beijing), which only provides basic DNS resolution functions.
Official website: https://ift.tt/rtwY2k1
This article is transferred from: https://www.williamlong.info/archives/7255.html
This site is only for collection, and the copyright belongs to the original author.