Port scanners have become a go to tool for network admins to scan, monitor, and secure their IT infrastructure, by tracking their TCP and UDP ports. With ports being the enablers of network communication, it is important that you keep track of how and by who our port are being utilized. This not only helps you understand your network port utilization, but also enables you to secure your network from unauthorized access, and enhances capacity planning.
An effective port scanner tool enables full fledged network port scanning to detect open ports in your network and identify the services running on them such as the file transfer protocol (FTP) and hypertext transfer protocol (HTTP).
Port scanners help you enhance network security by ensuring your network hosts are configured to run only approved network services, and prevents ports from allowing any unauthorized traffic.
Without an effective network port scanner solution in place, your network can become vulnerable to,
Network entities can easily scan and access services running in your network through open ports. Ports that remain continually open present a potential network vulnerability. An intruder can access an open port to wreak havoc in the normal flow of network operations.
Since network entities communicate using data flow through network ports, it is important to closely monitor network ports using port scanning solutions. This helps detect unauthorized entities connecting to your network, and secure communications between the computing entities in the network.
Facilitating message transfer for any entity willing to communicate with your network, Ports are the gateway to your network. When one service is running on a port, no other service can utilize the port. These factors make it important to ensure that there are enough ports available for authorized applications to communicate with your network.
OpUtils offers a code-free, intuitive port scanner that allows you to quickly find open ports in your network, the services running on them, and their response time by pulling real time port scan status. This port scanning tool helps you generate a list of closed, open, or listening ports by conducting end-to-end port scan on a range of available IP addresses and their TCP and UDP ports.
With its powerful scanning capabilities, OpUtils' network port scan ensures you have a holistic view of your network ports and its associated devices. The port scan tool offers a centralized view of all your network ports and enables you to remotely monitor and carry out network port operations.
With various port scanning tools available in the market, it is important to identify an effective network port scanning tool that enables you to efficiently avoid the risk vector of malicious agents exploiting your network. OpUtils' port scanner offers various features that enable you to test all ports, which is vital to achieving in-depth security verification. As a complete port scanning solution, OpUtils enables you to,
OpUtils offers you an effective port scanner tool, included in its built in network tool set that contains more than 30 free networking tools. By specifying the IP address range, and the port range, OpUtils' IP port scanner probes the target ports in your network by sending an IP packet to each port. Based on the response from the ports, OpUtils' port scanner marks ports as open and listening or closed.
The Port Scanner tool allows you to scan your network ports in seconds. It displays to you a list of ports within the given address range, their response time, status, and the services running on them. This helps you to conduct a quick network reconnaissance of what ports are open in your network, and to cross-check if the network ports are running authorized services.
Network ports are usually numbered from 0 to 65535, with different ports running different services, each having a service name. These services run over the network transport protocols such as TCP, UDP, DCCP, and SCTP and can be traced by effective port scanners. Ports numbered from 0 to 1023 (system ports) are known as “well-known ports” or “standard ports” and have been assigned the commonly used internet services.
OpUtils’ port scanner software allows you to scan these well-known ports along with the other network ports by specifying the port range to be scanned. It provides insights into each system’s footprint by enabling you to access and view all the services that are running on the system’s network endpoints/ports.
Some of the common port services scanned by OpUtils’ port scanning software are,
Managing and securing your network ports doesn't simply end with conducting port scans to identify the status and services running on your ports. With networks becoming increasingly dynamic and agile, network admins need to know how their ports are being used, their availability metrics, and more, to manage their switches effectively and ensure port availability.
With its advanced Switch Port Mapper module, OpUtils offers in depth insights into the scanned network ports. Providing visibility into different aspects of ports such as, if a port is stacked, connected to multiple IPs, or has a virtual device, it enables network admins to easily understand how their ports are being utilized. With the Scheduler capability, network admins can automate the monotonous process of port scanning and view real-time port availability metrics, end-to-end connected devices, and more.
The ability to track the port usage over time not only enables network admins to predict and avoid issues such as resource exhaustion, but also enables them to enhance capacity planning, which can reduce hardware procurement costs.
With OpUtils, you can generate diverse switch port specific reports that allows you to understand how, and by who your switch port resources are being used. It also provides reports on the scanned ports that offers you insights into different aspects of the ports such as the connected devices, and how they were associated with the switch ports. It also automatically logs the historical port operations in your network, as port history.
Staying in the know of who is using your network resources is important to avoid running in to network issues such as resource exhaustion. As said earlier, exploitation of open ports can lead to service outage, hindering authorized devices trying to use your network ports. This makes it crucial to keep tabs on all the newly connecting network devices, to ensure your network ports are being used by authorized network components only.
OpUtils simplifies this process with its tightly integrated Rogue Detection module that scans your managed IPs, routers, and switch ports to detect newly connecting network devices. On identifying the list of devices, OpUtils allows you to block or unblock network ports that might be facilitating unauthorized network services. This helps you secure your network resources from being used by intruders or rogue agents.
A port scanner helps you detect a potential security breach by identifying the hosts connected to your network and the services running on them, such as the file transfer protocol (FTP) and hypertext transfer protocol (HTTP).
An advanced port scanner, like ManageEngine OpUtils, provides you with an in-depth view into your network ports. This includes details like, connected IP, DNS, and MAC, along with name and details about the interface associated with a particular port. A port scanner also enables you to identify and close all the open ports in your networks.
Port scanning ensures your network hosts are configured to run only approved network services, and prevents ports from allowing any unauthorized traffic.
Port scanning is the process of scanning all the ports in your network using port scanner with a number of network scanner protocols such as SNMP scans. Port scanning is carried out by attempting to connect to the ports in your network, and their status is decided based on the response received by the network port scanning software, from them. This enables you to gain complete visibility of the status of ports in your network. You can pull out comprehensive summary of network port utilization by performing network port scanning.
Port scanning your network with an effective port scanner enables you to,
Port scanning tools scan network ports using multiple network scanning protocols to ensure pulling-out accurate data on the status and services running on the ports. The most commonly used port scans are:
These ICMP scans sweep the entire IP address block, or a single target IP, to check and see if the target is up. After sending an echo request, if the target sends an ICMP reply, this scan determines the target is up.
This is a commonly used port scan by port scanning tools that carries out a complete handshake process with the target to determine its status. The port scanner initially sends the target a synchronization (SYN) request. On receiving the SYN flag, the target sends the scanner a synchronization-acknowledgement (SYN-ACK). The port scanner then sends a ACK packet denoting that it has received the target’s SYN-ACK response. Based on the response received, the port scanner determines the status of the network ports.
A UDP scan attempts to find open UDP ports in a network. It is a connection-less protocol that works by sending a network packet to the target. This network packet usually carries no payload, but it can be set to carry a random payload for each port. Based on the ICMP response received from each target, the port scanner determines the status of the target.
As mentioned earlier, UDP is a connectionless protocol that enables the host to send a message to another host without first enabling a connection with a destination address. UDP ports do not usually require a response or acknowledgement from the destination.
On the other hand, TCP being a connection oriented protocol requires the network endpoints (the sender and the port) to establish a communication channel between them before they transmit messages.
Therefore, TCP port scans often provide a relevant feedback to the scanner whereas UDP port scans does not necessarily provide relevant information for a attacker.
OpUtils offers you more than just a port scanner. Its an in depth IP address and switch port management software that provides various capabilities such as, rogue device detection, wake on LAN, and more.
If you are new to OpUtils, schedule a live demo with a product expert who will uncover all the advanced port scanning and switch port management features OpUtils has to offer.
Want to try out OpUtils' port scanner tools firsthand and see how it could work for your network? Download a 30-day free trial and get started with OpUtils in less than an hour!