Management – POFTUT

Category: Management

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What Is LAN (Local Area Network) and Compare With MAN, MAN?

Local Area Network is a computer network where computers in the same location or group are connected together and shares common communication lines. Local Area Network is mainly expressed as LAN which is a very popular term in computer network and IT. LAN Components LAN will have very simple topology where some equipment or components are used. In order to connect multiple computers in a single LAN, we can use...

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What Is A Firewall and How Its Work?

Today Firewall is depicted as the main component of the security and networks. Firewalls provide a lot of different operations and features. In the old days, the firewall was simply used to block or allow some ports and management of the NAT. In these days there are a lot of different threats where the firewall is used to detect and stop these threats. Firewall Features Today modern firewall’s provides a...

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nslookup Commands Tutorial with Examples

nslookup is a very powerful tool used to get DNS realted information from DNS servers. We can get web server IP address, Mail Server IP address, Alternative IP addresses, DNS Management Information etc from DNS servers with the nslookup command. Query and Print A Type Records We will start with a simple and general example. We will query and list the A type of records. A type record is used to...

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NTP Port Number and Configuration Tutorial For Linux Local System

NTP is a core protocol used today’s IT infrastructure to synchronize date and time information. In order to work properly, we need to configuration NTP port in our server, client and intermediate systems like switch, firewall, router. NTP Port UDP 123 NTP uses the UDP port number 123 by default. NTP services run on UDP protocol because of the UDP simplicity and performative behavior. NTP is also a very simple protocol...

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How To Install and Config Polipo Caching Web Proxy On Linux?

Polipo was the best HTTP proxy when it emerged. Since then web behavior has a lot changed and HTTPS became popular. HTTPS prevents intermediates to read traffic and cache them. Polipo is not maintained currently but useful for different cases. Install For Ubuntu, Debian, Mint, Kali We can install polipo for Ubuntu, Debian, Mint, Kali with the apt-get command like below.

Install For Ubuntu, Debian, Mint, Kali We can also install...

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What Is Telnet Command and What Is Telnet Used For?

Telnet is a command line protocol used to manage different devices like Server, PC, Router, Switch, Camera, Firewall remotely. Telnet is a very simple protocol which provides simple remote connection and sending commands or data to the remote network connection. This makes telnet very popular among IT systems. Telnet generally comes after SSH for remote system management from the command line. History of Telnet Telnet protocol is created with the...

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What Is DNS Server Or Protocol Port Number?

Domain Name System aka DNS is used to match domain names to the IP addresses. DNS is provided over intranet and internet servers with different port numbers. TCP or UDP DNS can use both transmission protocols TCP and UDP. But general usage is over UDP protocol because of its simplicity and speed. TCP Port 53 One of the used DNS port is TCP Port 53. TCP provides stability over DNS...

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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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What is 127.0.0.1 IP Address or Localhost In Computer Network?

IP addresses are used to specify the hosts in a numeric way. There are different type of IP addresses in Computer networks. One of them is 127.0.0.1 which seems a bit confusing. 127.0.0.1 is a special purpose IPv4 address. This address is asssigned to the local system and can not be used by other systems. 127.0.0.1 127.0.0.1 is mainly designed to test local system network protocols. We can ping 127.0.0.1 like other IP...

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What Is SOA (Start Of Authority) Record and How To List?

wWDNS system provides different types of information about the domains. SOA or Start Of Authority is one type of information which provides domain and domain server related information. In this tutorial we will examine SOA record and related information. Query SOA Of A Domain We will start simply querying Domain Name SOA records withnslookup . This will list some information about the domain those will be explained below. The domain in...

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