A serious access problem arose as of this evening in Facebook and all services such as Instagram and WhatsApp. During the access problems that continued throughout the evening, users could not access any of these services.
Making a statement on the subject, Facebook did not make any explanation as to the cause of the situation, while expressing that they are working to solve the problem. This brought with it all kinds of allegations. While some said that Facebook was hacked, others claimed that there were some technical errors at the root of the problem.
The problem may be due to errors in BGP and DNS servers:
While such agendas are still hot and there are no official statements yet, we need to know that every reason put forward is just an allegation. Because at such moments, it is possible to come across a lot of information pollution around. However, of course, every claim is not just a disinformation, some claims are quite strong.
One of the strong claims that we have come across is that the company’s BGP and DNS servers are behind the historical collapse of Facebook tonight. The source of the claim is CloudFlare vice president, Dane Knecht.
In a tweet, Knecht stated that Facebook’s DNS servers were down and BGP (Border Gateway Protocol) was disabled. The key point here is BGP. BGP, which is an advanced routing protocol, is a network protocol that enables information sharing and routing between autonomous systems on the Internet, and all searches we make on the Internet are basically made through this protocol.
However, disabling BGP means that no action can be taken on the system in question, and Facebook cannot access its DNS servers in such a scenario. This is the kind of ‘technical failure’ that could cause this great collapse we are experiencing. It is said that what caused this malfunction was a mistake made by Facebook engineers during a configuration. To remedy the situation, data engineers need to physically interfere with the routers in question. However, the inability of the employees to enter the center naturally causes the process to be prolonged.
In this context, we can explain the Facebook example as follows: Without BGP routing to the Facebook network, Facebook’s own DNS servers cannot be accessed. Likewise, Facebook-owned Instagram, WhatsApp and Oculus VR are also inaccessible.
The truth of this claim and the reason behind the collapse will only be finalized when Facebook makes an official statement. However, besides the hacking allegations, we can say that this is the most logical explanation so far.
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