Application – Page 2 – POFTUT

Category: Application

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What Is Online Certificate Status Protocol (OCSP) and Tutorial with Examples?

Certificates like SSL, X.509 are used to secure network traffic. But every certificate has its own life cycle in a distributed environment like the internet we should manage them. Online Certificate Status Protocol aka OCSP is used to manage certificates validity and lifecycle. OCSP standard is defined in RFC 6960 with the name of  X.509 Internet Public Key Infrastructure Online Certificate Status Protocol – OCSP. It makes absolute previously defined certificate...

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What Is SSL Certificate CN (Common Name) and Usage?

Common Name or CN is generally used in SSL Certificates. CN is used to define the server name which will be used for secure SSL connection. Generally this SSL certificate used to secure connection between a HTTP/S server and client browser like Chrome, Explorer, Firefox. Common Name (CN) Common Name is used to specify the host or server identity. When a client try to connect to a remote server like...

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Tails Linux OS Tutorial For Privacy and Anonymity

Anonymity and Privacy are important topics of this decade. A lot of states, companies or persons try to crack or censorship peoples anonymity and privacy. There are different ways to protect us from these attacks. Tail OS is a Linux based distribution which provides these protections as a Live operating system. Download Tail OS can be used in different ways. The main usage is live where we do not need...

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OpenPGP Mail Encryption and Related Tools For Linux, Windows

OpenPGP is a email encryption standard used by a lot of people. This standard is defined by OpenPGP Working Group of the Internet Engineering Task Force (IETF). The standard is proposed with RFC 4880 . The OpenPGP is derived from PGP software which is created by Phil Zimmermann. OpenPGP Windows Tools Gpg4win Gpg4win is popular and actively developed software for mail privacy and secrecy. Its current version is 3 and...

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Debug Applications with gdb In Linux

gdb is the short form of GNU Debugger. Debugger is a tool used to search and find and get detailed information about bugs in applications binaries. gdb is popular in Linux community which is used by most of the IDE, Programming tools event in Android IDE’s. In this tutorial we will look how to start and use basic features of gdb . Example Code During this tutorial we will use following simple application...

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What Is OpenSSL Library?

OpenSSL is most popular open source cryptography library which provides a lot of tools, libraries, algorithms about cryptography. It is mostly known with Secure Socket Layers (SSL) and Transport Layer Security (TLS) protocols. Supported Encryption Algorithms Encryption is used to make given data unreadable by the intruders. It is mainly used for confidentiality. OpenSSL supports following algorithms. RSA DSA AES DES 3DES Supported Hash Algorithms Hashing is used to create...

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How To Install and Use GPG Encrytion In Linux In Order To Encrypt and Decrypt Files and Folder?

Security is important part of the today’s IT operations. There are a lot of tools which provides some part of the secure operations. GNU Privacy Guard or simply GPG is a one of them. It provides encryption, decryption, digital signatures and signing. Install GPG To Ubuntu, Debian, Mint and Kali For deb or apt based distributions we can install GPG with the following command for gnupg package.

Install GPG To...

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Python Hash Strings and Lists to MD5, SHA256, SHA512 with Hashlib Module

Security is important part of the today IT and gains more respect from IT world. Hashing is a security measure to protect and check our data. In this tutorial we will look how to use hash with tables and strings. What is Hash Hash is a function where provided data will be converted into another expressions format and can not be recovered back with normal functions. MD5 MD5 is very...

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How To Generate and Configure Htpasswd Password In Linux For Apache and Nginx Server?

Today world is insecure. We have to provide different type of security measures like authentication. In HTTP servers like Apache or Nginx we can use HTTP Basic Authentication. HTTP Basic Authentication is authentication protocol provided by web server. We can use htpasswd tool to create HTTP Basic Authentication Database and Users. Using application level authentication is better solution by the way. Install Htpasswd Tool htpasswd is provided by Apache Utils...

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Best Free Hex Editors For Windows

There are different type of editors used to change given files context. Most of the computer users aware of text editors. But there are other less known editors used by different professions. Hex editors are mainly used by reverse engineers, system administrators, applications developers etc. What is Hex or Hexadecimal Editor Hex editors used to edit files where these files are generally structured in hexadecimal format. The logic is the...

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