Network – Page 3 – POFTUT

Category: Network

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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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How To Use Google Chrome Commands?

Google Chrome is the most popular browser used around the world. Google Chrome supports platforms like Windows, Linux, MacOS, Android etc. Google Chrome uses Omnibox address bar which can be used access to the Chrome features and settings easily. Settings – chrome://settings We can use the following command in order to list current Chrome settings.

Search Engine – Settings – chrome://settings/searchEngines Chrome comes with a default search engine which is...

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What Is Nettime and How To Use Nettime?

Nettime is a simple time synchronization client for Windows 95/98/200/Vista/7/10 and Windows Server 2003/2008/2012/2016 . It is very lightweight and uses very tiny system resource. Features Here is some of main features and attributes of the Nettime application. Free where we do not need to pay any price to install and use Open Source where we can download the whole source code and make changes Small where it needs very...

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How To Use Google Public DNS Servers?

Google is a huge company which provides paid and free services. It mainly operates in IT and internet area. Internet uses DNS in order to solve domain names into IP addresses. Because internet infrastructure works with IP addresses. Google provides free DNS servers which can be used for fast and free domain resolution. In this tutorial we will learn Google DNS features and how to use in Linux, Ubuntu, Debian,...

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What Is My MAC Address Of Network Interface On Windows Or Linux?

MAC Address is used to identify a Network Interface Card uniquely in a layer 2 network. This address is used to transfer files between default gateway and host or computer. In this tutorial we will learn how to find a MAC address from command-line or GUI in operating systems like Windows and Linux. Windows ipconfig Command Line ipconfig command provides a lot of information about the network of the current...

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What Is System Administrator and Duties ?

Information Technology or IT provides a lot of positions for technical personnel. System Administrator is the most popular position or role in the IT except Programmers or Applications Developers. In this tutorial we will try to explain the System Administrator role and its duties. System System is a general term to refer a complete hardware and software which can run applications on. Actually network devices like switch, router can be...

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What is Zenmap and How To Download, Install and Use In Windows, Linux?

Zenmap is an free and open source GUI designed to be used with nmap . Zenmap is multiplatform tool which supports Linux, Ubuntu, Mint, Kali, Fedora, CentOS,.. , Windows, Mac OS X, BSD etc. . nmap is very powerful tool for network scanning and vulnerability discovery but it is completely command line based. Zenmap can be used by novice users to scan network and discover vulnerabilities. Download Windows Windows version can be downloaded...

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How To Scan Top Ports with Masscan?

masscan is an alternative tool to the popular nmap . Actually masscan provides very less of the nmap but provides some huge adventages. masscan is designed to be fast and performative. nmap have popular feautre named top ports which option is –top-ports to scan specified number of most popular ports. masscan also provides this options too. Nmap Top Ports We will start with scanning top ports in nmap . As stated previously we will use —top-ports option...

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How to Lookup OUI (Organizationally Unique Identifier) In Linux

Network switches or Layer 2 technology Ethernet protocol uses MAC addresses in order to transfer frames between systems. MAC addresses are 48 bit value. This 48 bit value contains the device manufacturer ID as the first 24 bit. In this tutorial we will learn how to look, search and find the Organizationally Unique Identifier in Linux distributions like Ubuntu, Debian, Mint, Kali, Fedora, CentOS, RHEL etc. Mac Address As stated in...

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What is Syslog Default Port and Secure Port and How to Configure It?

syslog is a standardized protocol used to send Logs and events to the Log server. syslog can be used in different platforms like Linux, Windows, Unix, Applications etc. In this tutorial we will look the default syslog port and secure syslog port and some examples about how to change this port number. Default Port Number UDP 514 syslog is a protocol which is defined in RFC 5424 and RFC 3164 . The port...

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