2. Final Report Tasniflagich
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2.Final Report Tasniflagich
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- 2.1.1 Web app workflow Network
2.0 Overview
2.1 Web application Tasniflagich is a web application. The web application is a type of Software which uses HTTP for communication and can be easily accessed by browser. There are 3 types of perspectives that we can analyze: client, server and network. 2.1.1 Web app workflow Network When a user enters a url in the browser (e.g. http://tasniflagich.mf.uz/ ) Here, the first part is ‘http’. This basically tells the browser which protocol it should use. It can be http, https, ftp, etc. A protocol is a set of rules that browsers use for communication over the network. The second part tasniflagich.mf.uz is a domain name. Domain name is the address of the website. It gives a unique identity to your website in such a huge web world. There is 5 steps to find out the IP of looking domain name (the following depicted in Figure 1 ): 1. After hitting the URL, the browser cache is checked. The browser maintains its DNS records for some amount of time for the websites you have visited earlier. Hence, firstly, DNS query runs here to find the IP address associated with the domain name. 2. The second place where DNS query runs is in OS cache followed by router cache. 3. A resolver server is used if a DNS request cannot be answered using the procedures listed above. Your ISP serves as the resolver server. The DNS query is processed in the ISP cache once the query is received to the ISP. 4. If no result is found in the third step, the query is sent to the top or root server in the DNS hierarchy. It never fails to find a result, but actually indicates where this information can be obtained. If you're looking for IP addresses for top-level domains (.com, .net, .gov, .org). This tells the resolver server to look for a TLD (top-level domain) server. 5. Here, the resolver asks the TLD server to provide the IP address of the domain name. A TLD stores address information for a domain name. This tells the resolver to ask an authoritative nameserver (in this case mf.uz). In our case tasniflagich is a subdomain of mf.uz, so mf.uz serves its own DNS server in order to have subdomains. TTPU 8 2022 |
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