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BitTorrent Consumes Big Bandwidth
Based on the working principle of BitTorrent protocol, if somebody is downloading big files with BitTorrent software, it will be a disaster for other users who need bandwidth for business operations as the user will consume large amount of bandwidth, thus causing long time network slowness, intermittence, even disconnections; because meantime the user downloading files from others, others are downloading files from him.
So it is necessary for IT administrators to track BitTorrent user at first place to regain network bandwidth for business operations. Blocking BitTorrent protocol can be one way; this article is to discuss how to track BitTorrent users with Colasoft Packet Sniffer.
How to Track BitTorrent User?
>Step1. Download a free trial and implement it correctly
>Step2. Launch a project and start capturing data
>Step3. Find BitTorrent Protocol in the “Protocols” Tab
Track BitTorrent User Screenshot 1
>Setp4. Locate BitTorrent Protocol in the “Explorer”
Use the “Locate” function to locate BitTorrent protocol in the “Explorer” to analyze dedicated data.
Track BitTorrent User Screenshot 2
>Step5. Track BitTorrent User in LAN in the “Endpoint” Tab
This is the way how to track the BitTorrent user in our network and who are connected with him. There is a lot more we can see from this tab, such as how much data has been downloaded and uploaded via BitTorrent protocol.
Track BitTorrent User Screenshot 3
View how many connections have been built in “Matrix”
You’ll be shocked to see how many connections have been built in the “Matrix” Tab. In this case, we can see this user has built more than 1000 connections with other hosts.
Track BitTorrent User Screenshot 4
About BitTorrent
BitTorrent is a peer-to-peer file sharing protocol used for distributing large amounts of data. BitTorrent is one of the most common protocols for transferring large files.
The protocol works when a file provider initially makes his/her file (or group of files) available to the network. This is called a seed and allows others, named peers, to connect and download the file. Each peer that downloads a part of the data makes it available to other peers to download. After the file is successfully downloaded by a peer, many continue to make the data available, becoming additional seeds. This distributed nature of BitTorrent leads to a viral spreading of a file throughout peers. As more peers join the swarm, the likelihood of a successful download increases. Relative to standard Internet hosting, this provides a significant reduction in the original distributor’s hardware and bandwidth resource costs. It also provides redundancy against system problems and reduces dependence on the original distributor.
Next Step
>>Download a Free Trial
For some purposes we want to monitor MSN chat around the network, for example, parents want to monitor MSN chat of their kids to ensure their safety; bosses want to monitor MSN chat of employees for company assets security and to improve work efficiency by minimizing none-business chat during working hours. You may still remember Colasoft MSN Monitor, now it is called Unipeek MSN Monitor and it is distributed completely Free for none commercial users.
Now let’s see how we can monitor MSN chat with Unipeek MSN Monitor, the free tool.
Step1. Download Unipeek MSN Monitor
Download Unipeek MSN Monitor, the free edition; from the website. As a matter of fact there is no function difference between Unipeek MSN Monitor the free edition and the commercial edition. The only difference is Unipeek MSN Monitor Free Edition only supports 10 MSN accounts maximum, but quite enough for family users.
Step2. Install and Deploy Unipeek MSN Monitor
The installation is quick and simple, just click “next” all the way to complete the installation. But the deployment is somewhat different. As Unipeek MSN Monitor is designed based on Colasoft’s packet capturing technology, so it has to be deployed properly like a packet sniffer if you want to monitor all MSN chat around the network. Of course, you don’t have to do it if you only want to monitor MSN chat of a single computer. To monitor multiple computers, you can install multiple copies.
How to Monitor MSN Chat Screenshot 1
Setp3. Run it and Start Monitor MSN Chat
After proper installation and deployment, we can start monitoring MSN chat right away.
How to Monitor MSN Chat Screenshot 2
About Unipeek MSN Monitor
Unipeek MSN Monitor (MSN sniffer) is Free MSN monitoring software for MSN chat monitoring and MSN message archiving. Based on Colasoft’s packet analysis technology, Unipeek MSN Monitor is able to deliver the most accurate MSN monitoring statistics, and automatically record data for future reference. You need only install Unipeek MSN Monitor once to monitor all MSN chats over the local network.
Key Features include:
• Real-time and 24/7 MSN chat monitoring
• Automatically archive MSN messages for future reference
• Export messages of a custom time range
• Customize MSN account list to be monitored
• Unique Conversation Matrix showing account relations
• Support emotion icons, message font size and color.
Download Now
Download Unipeek MSN Monitor
Some people may doubt if it is legal to monitor email of employees with an email monitor software (aka. email spy or email checker), but this is not the topic of this article. We are going to discuss how we can monitor email with some technical methods, especially how we can monitor email with this packet sniffer – Colasoft Capsa.
Step 1. Still we need to download a free trial and deploy it correctly.
Step 2. Launch a project
If we have not set Capsa to save email logs to a local disk, we’ll not be able to monitor email contents but we can monitor all email logs. So we must set the log settings to save email logs to a local path in order to monitor email contents. Also there will be a notice when start a new project.
Monitor Email Screeshot1
Setp3. Set Email Logs Settings
View full image to set the email logs setting correctly.
Monitor Email Screenshot2 - Click to view Large
Advanced Email logs settings to split email logs and keep the most recent email logs to save disk space.
Monitor Email Screeshot3
Step 4. Start Capturing and Monitoring Email in “Logs” Tab
After email log settings is finished, we can do a test to see if we can get some email monitoring logs. Let’s launch Outlook and start sending and receiving emails. We can see that we’ve received many spam email in my email box. We can see a lot of information in the logs Tab, such as date and time, client name, email subject, sender and receiver name, size, and more.
Monitor Email Screeshot - Click to View Large
Step 5. Monitor Email Contents
In order to view the original content of an email, the process is quite simple, just double-click on the logs, then Capsa will call an email software to display the email content, basically Outlook.
Monitor Email Screeshot5 - Click to View Large
Now this is the entire process how we can monitor email with Colasoft Capsa, we hope you enjoy this article.
Next Step
>>Download a Free Trial
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Colasoft MAC Scanner Screenshot
In computer networking, a Media Access Control address (MAC address) is a unique identifier assigned to most network adapters or network interface cards (NICs) by the manufacturer for identification, and used in the Media Access Control protocol sublayer. If assigned by the manufacturer, a MAC address usually encodes the manufacturer’s registered identification number. It may also be known as an Ethernet Hardware Address (EHA), hardware address, adapter address, or physical address.
Since a MAC Address is unique for most network adapters or network interface cards (NICs), it is important for IT administrators to know all the MAC addresses in LAN so as to quickly locate a network device when a network issue arises. Luckily we have tools to help us out. Let’s see how we can easily find MAC address in LAN with Colasoft MAC Scanner.
Colasoft MAC Scanner is a Free software to find MAC address and IP address. It can automatically detect all subnets according to the IP addresses configured on multiple NICs of a machine and find MAC addresses and IP addresses of defined subnets as your need. Users can custom own scan process by specifying the subsequent threads.
Step 1. Download Colasoft MAC Scanner
Step2. Install Colasoft MAC Scanner
The installation of Colasoft MAC Scanner is quick and easy, it is suggested to install Colasoft MAC Scanner on a laptop as it only scans and finds MAC addresses and IP addresses in the subnet to which the laptop is connected.
Step3. Start a Scan
It’s easy and quick, just press the start button, the Colasoft MAC Scanner will scan and find MAC addresses and IP addresses in the subnet and list them out. The results can be “copy and paste” or exported for future reference.
Now the problem is: if a LAN is divided into several subnets, we’ll have to move the laptop around and scan each subnet in order to find all MAC addresses and IP addresses. Then what’s the solution?
Find MAC Address and IP Address with Colasoft Packet Sniffer
Colasoft Packet Sniffer allows us to find MAC addresses and IP addresses both local and remote in the network as long as there is network communication initiated.
Find MAC Address in Colasoft Packet Sniffer
UGI Logo
Following giant customers like AIRBUS, IBM, INTEL, PEPSI, PHILIPS, UGI now becomes another Colasoft’s big customer. UGI will deploy Colasoft Network Analyzer to whole company computer network, to analyze network problems, detect network intrusion attempts, and gain information for effecting a network intrusion, monitor network usage, gather and report network statistics, filter suspect content from network traffic, etc, to keep their network safe and smooth.
About UGI
UGI Corporation (NYSE:UGI) is a distributor and marketer of energy products and services including propane, butane, natural gas and electricity. UGI has paid common dividends for 124 consecutive years and raised its dividend in each of the last 21 years.
Internet traffic is the flow of data around the Internet. It includes web traffic, which is the amount of that data that is related to the World Wide Web, along with the traffic from other major uses of the Internet, such as electronic mail and peer-to-peer networks.
In case we want to monitor internet traffic generated or is generating in LAN, here is a detailed process how we can monitor internet traffic with Colasoft Packet Sniffer – Capsa.
We must make sure the packet sniffer software is correctly implemented so we can capture all the traffic in LAN, if you don’t know how to do it, please make sure you read how to implement a packet sniffer.
First let’s launch a new project with Colasoft Packet Sniffer, then do some online activities, such as chatting, browsing a website, sending and receiving emails, downloading some files. All these activities will generate different kinds of internet traffic. We may keep the project running to continuously monitor internet traffic or stop the project to do some analysis.
To monitor internet traffic, we’d better first select the “Internet Addresses” in the “Explorer” on the left window:
Monitor Internet Traffic Screenshot1
We can see that all the internet addresses are listed by countries, to monitor internet traffic of a specific country, we just need click on it; If we want to monitor internet traffic of a specific IP address within one country, we need to expand the country node and select the IP address in it.
Also we can monitor internet traffic aggregated or internet traffic in real-time
Monitor Internet Traffic Screenshot2
To view what online activities have generated or are generating internet traffic, we need to use the “Protocols” Tab.
Monitor Internet Traffic Screenshot1
We can see there are protocols which separately stand for different internet activities:
HTTP – Website browsing
MSN – online chatting with Live Messenger
POP3 – Email
HTTPS – Website browsing via a secure link
QQ- online chatting with QQ
DNS – Domain Name System
Hypertext Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative, hypermedia information systems. Its use for retrieving inter-linked resources led to the establishment of the World Wide Web.
In order to monitor http traffic, we will need a packet sniffer (or a protocol analyzer) software. Here is a detail process how we can monitor http traffic in LAN with Colasoft Packet Sniffer – Capsa.
Again let’s launch Colasoft Packet Sniffer and start a new project. Don’t forget one thing, we have to deploy the packet sniffer to the mirror port of the core switch in order to monitor all http traffic in LAN, if not, we can only monitor http traffic of our own computer.
Then let’s start browsing a website, for example, www.colasoft.com, to generate some http traffic. Now let’s get back to the packet sniffer and see if there is http traffic. OK, we can see the packet sniffer has already captured some http traffic in the “Protocols” Tab
Monitor http Traffic Screenshot 1
We can see both the aggregated http traffic since start capturing and the real-time http traffic in this tab.
If we want to do a deeper analysis on http traffic, we will need to use the “Locate” function to locate http protocol in the Explorer to let the packet sniffer display only the data that is http protocol. Right click on the protocol and select “Locate Explorer Node” in the pop-up menu.
Locate Explorer Node
If we want to know who are using http protocol and what they are actually browsing, we are going to use two tabs, the “Endpoints” Tab and “Logs” Tab.
Let’s see who are using http protocol:
Who is Using http Protocol
And what they are actually browsing:
Monitor http Traffic Screenshot 4
In case we want to sniff all images of a webpage, here is a detailed process how we can do it with Colasoft Capsa’s “Logs” feature. I will take the CNN.com home page as an example.
Step 1. Open Log Settings
Log settings allows us to set up some conditions or exceptions whether or not record some logs in the Logs tab. If we want to display just images in the Logs tab, we must enable the HTTP Log conditions.
How to Sniff Images Screenshot 1
Step 2. Enable Http Log Conditions
We must tick before Conditions to enable it
How to Sniff Images Screenshot 2
Step 3. Input “Image” into Content Type
On the right hand, lets’ input the content type in order to filter contents
How to Sniffer Images Screenshot 3
Here is an explanation of Content Type
How to Sniff Images Screeshot 4
Step 4. “OK” to Activate the Setting
Now we’ve done with the Log Settings, let’s see whether we can sniff all images of CNN.com index page. First of all, let’s start capturing with Colasoft Capsa, then let’s input the URL into the address bar and start browsing.
Results start showing in the Logs Tab – Http Request Option, we can see all results are in image formats. We have successfully sniffed all the images on this webpage.
How to Sniff Images Screeshot 5
To view the image, we can click on the record, and it will be shown in a browser.
How to Sniff Images Screenshot 6
