IP layer is the service provider for transport layer that is for both UDP and TCP protocols. In OSI model, transport layer is responsible for end to end communication or process to process to communication. Major protocols in the Transport…
To enable cross origin resource sharing we need to enable some headers to authorize origin (browser ) to make requests to cross(different) origin. Browsers make preflight request to determine whether the given origin can make request to cross origin web…
Python is general purpose, high level scripting language. It is known for it’s elegant syntax, readability and productivity. As it is said, python is general purpose programming language such that it can be used to create backend web applications. For…
To configure custom domain for the deployed API on API gateway we need the certificate either public certificate created using AWS Certificate Manager or certificate provided by other certificate authority Check this article to create a certificate using ACM Assuming…
A simple python program to create a random password without using any libraries using prime number is as follows Random numbers created by above program is not truly random, it was an effort to create random password with out using…
There are different ways to generate RSA public and private key pair. Command line tools that are available generate RSA key pair are Using OpenSSL command to generate RSA public and private key pair Generating RSA Key Pair Using OpenSSL…
In general to troubleshoot network connectivity ping command is used, where ping command uses the ICMP protocol behind the scenes. ICMP stands for Internet Control Message Protocol, it is used as complimentary protocol along with IP to send back error…
React Native is the open source frame work created by Facebook to develop cross platform applications for Android, IOS, Web and Windows (UWP). Especially when it comes to mobile application development, applications developed using react-native can be released on both…
OpenSSL command to download the certificate from website is as follows Simple Example to download the certificate from google.com Where, echo -n produces empty message to server so successful connection is made The -servername is required to select the correct certificate when…
Certificates are prominent in today’s secure data communicate particularly in HTTPS protocol. Certificates are used to identify the authenticity of the public key shared by other party by digitally signing it by trusted certificate authority. Certificate contains various components Display…
