port – POFTUT

SNMP Port Number Tutorial with Examples

SNMP Port Number Tutorial with Examples

Simple Network Management Protocol aka SNMP is used to monitor and manage devices over the computer networks. SNMP is popularly used to monitor network devices. SNMP protocol communication is done over the SNMP ports which can be different according to operation and security. SNMP Ports SNMP uses UDP 161 by default. UDP is an alternative … Read more

How To Install and Use Telnet Client In Linux and Windows

Telnet is easiest remote management protocol used in Computer networks. It remains popular even today because of its simplicity. Telnet is a client server protocol where clients uses telnet tool which to connect remote telnet server. This telnet server may be switch, router, windows operating system, linux server or a printer.  In this tutorial we … Read more

Linux SSH Tunneling or Port Forwarding Local and Remote Ports with Examples?

Linux SSH Tunneling or Port Forwarding Local and Remote Ports with Examples?

Ssh protocol secures remote connections which are shell or terminal-based to the remote systems. Ssh protocol and tool provides more than that. We can use ssh to create tunnels over local and remote systems or connect remote system X server. In this tutorial, we will look at how to tunnel and port forward locally and remotely. … Read more

How To Check and List Listening Ports with Netstat In Linux

netstat is very useful tool which provides a lot of information about the network of operating system. netstat command can list ip addreass, route, port, connections etc. More detailed information about the netstat command can be found in the following tutorial. Linux Netstat Command With Examples List All Listening Ports We can use netstat -l options in order to list … Read more

How To Specify Different Port for Linux Rsync?

We have been attempting to use rysnc on remote system to backup. But we get network related error. This means we need to enable access to the remote system. But the problem do not solved with this step. Here is the solutions. Default Rsync Port Rsync works as a daemon and listen for TCP network port. … Read more

Nmap Host Discovery with Examples

Nmap is popular tool used by pentesters, system administrators and network administrators. Nmap provides a lot of features for free. In this tutorial, we will look host discovery features and options of nmap. Discover with Ping Scan One of the basic usages for Host discovery is Ping scan. Ping uses ICMP protocol to communicate with … Read more

Nmap Commands Cheat Sheet

Nmap is the most popular tools used in penetrations test or assessments for network scanning. Nmap have another features like listing some basic vulnerabilities and protocol related details. We will look Nmap features in fast way. For more detailed information read following tutorial. Nmap Tutorial Target Selection Target is the remote system nmap will scan. … Read more

TCP and UDP Port List, Names and Usage Frequency

TCP and UDP Port List, Names and Usage Frequency

Nmap tool provides a popular ports list as a database where this list is also used in network and service scans. Here is the list but before we will look at the command which will list ports according to the popularity. Nmap Top Ports Listing We can use sort command in order to list ports according … Read more

Introduction To Nmap Network Scanning

[rps-include post=6632] Nmap is very popular tool among network and system administrators and pen-testers. As a pentester I generally start a penetration test with nmap. Nmap simply uses network protocols to scan given network range with given options. We will look all of the common options in next tutorials. Info Nmap is shorthand of the … Read more

How To Manage Windows Firewall From Command Line With Netsh Command?

Windows firewall is a useful mechanism which is used to control network traffic and ports. There are different ways to manage Windows firewall like GUI, Powershell and MS-DOS. Today we will look in detail how to manage windows firewall from command line with a popular tool named netsh . Netsh is a built-in tool which exists … Read more