Be aware that some of these packages require full disk write access and thus are not available on NanoBSD installations typically found on CF or SD card installs. In the above example, -nNpP tells iftop to not resolve hostnames n or port numbers Nand to run in promiscuous mode p and also display ports in the output P.
Press t to cycle through various views. Another option for viewing real time throughput is trafshow. It can break down detail by IP, protocol, and so on. It will even track where connections were made by local PCs, and how much bandwidth was used on individual connections.
Due to the disk resource requirements of ntop and ntopng, it is not available on NanoBSD.
Currently, darkstat and bandwidthd do not listen on multiple interfaces. Netflow is another option for bandwidth usage analysis. Netflow is a standard means of traffic accounting supported by many routers and firewalls. Netflow collector running on a host inside the network is required to collect the data. See Vnstat for more information. Netgate Logo Netgate Docs. Previous Monitoring Graphs.
Once installed, run it at an SSH command prompt, run: trafshow. The older ntop package has been replaced by ntopng.Sam has over 10 years of experience working with pfSense firewalls and has written over 30 articles on the subject.
One of the best features of pfSense is it's ability to be adapted to many different situations using packages. Using a package based system allows the base pfSense installation to remain small and provides users the option to install only the packages they need for their environment.
In this article you'll find a list of the best pfSense packages. Along with each package is a brief summary of what the package does, and how it can help your network. In order to install packages you must be using the full version of pfSense, currently packages are not supported on embedded or liveCD versions. To learn more about pfSense and what it's capable of check out the introduction to pfSense.
Squid is by far the most popular package for pfSense. Squid is a caching proxy server that can improve the performance of your internet connection. Squid builds a cache of commonly accessed web pages, images, or other files clients request from the internet. If a requested item is found in the cache Squid can deliver it directly to the requesting computer instead of using your internet connection. The Squid package can be configured to run transparently, this means that traffic on your network will be automatically routed through the proxy without having to change any configuration on the workstation.
Another benefit to installing this package is that when combined with LightSquid you can view reports of web sites visited by computers on your network. To learn more check out the pfSense transparent proxy guide. PfBlockerNG is the ultimate package for blocking incoming and outgoing traffic based on IP address or domain name. The DNS blacklist feature allows you to add multiple external blacklists to block traffic such as advertisements, threats, and malware.
This is a great package to use if you are running a mail server on your network. By adding a spam blacklist such as Spamhaus you can block spam before it even reaches your server.
Open Source Security
Another very useful package for pfSense is SquidGuard. SquidGuard is a high speed URL filter and redirector. By uploading your own custom blacklist or using one of the freely available lists you can customize which sites users on your network are allowed to access. The package can also be configured with schedules to grant access based on time of day as well.
SquidGuard can also enforce the use of domain names which prevents users from bypassing the blacklist by simply entering the IP address. Blocked URLs can be redirected to an external web site or internal information page.
PfSense SquidGuard installation guide. It's important to analyze the traffic usage on your network in order to optimize performance and look for potential problems. Darkstat is a network traffic monitor that runs in the background and captures network traffic which is used to generate usage statistics for your network. The data collected by this package can be viewed using the web interface.
The easy to use HTML interface allows you to view the top talkers and listeners on your network. You can drill down further into the charts to see which protocols and ports are taking up most of the bandwidth on your network.MSP Solutions. Ask us today for a Full-Featured 1-month trial for all your Devices. See a preview of the console status right on the page for each firewall device, as if you were connected to it via SSH or Serial. This utilizes our own Dynamic DNS system, not a third party that you have to pay extra for, it is included with your PFMonitor subscription.
Making it easy to manage sites without Static IPs. Everyone contributes to our knowledge base of known offenders. Devices with an alert automatically jump to the very top of the list for immediate attention. Incredibly usefull for Managed Service Providers with many devices, as well as those with a collection of devices at their remote offices. Updating the firmware on a device usually requires logging into the device directly, and running the updates yourself.
This easily takes minutes per firewall. But with PFMonitor, You can update the firmware and or reboot all of your units in less time that it usually takes to do a single unit.
The Best pfSense Packages
Supported Devices: pfSense 2. Request Free Trial. Support PFMonitor.The logs show all events logged by the firewall. By default, this includes connections blocked by the default deny rule. Each entry is displayed with the action pass or block, reject is only logged as blocktime, interface, source, destination, and protocol.
The action icon depicts the action taken on the connection. Hover over the link for a text description if the meaning of the icon is not clear.
Clicking on the action icon will produce a box that shows which rule caused the action. Using the Settings tab, these rule descriptions may also be shown in a separate column of the rules, or on a second line.
The icon next to the source and destination addresses will attempt to reverse resolve the IP address into a hostname via DNS. The icon next to the source address will add a full block for traffic coming from that IP address via Easy Rule. The icon next to the destination address also invokes Easy Ruleand will add a pass rule for traffic of this protocol, going from the source IP address to the destination IP address on the destination port.
For more information, see List of Routing Table Flags.
The dynamic firewall log view works like the normal Firewall Logs view except it is updated every few seconds using AJAX. The firewall log summary view produces pie charts which summarize the log data. Summarized data includes actions, interfaces, protocols, source IPs, destination IPs, source ports, and destination ports.
The full content of the log is used to summarize the data, not just the part displayed in the Firewall Logs view. Netgate Logo Netgate Docs. Previous System Logs.The settings work the same as tcpdump.
The capture can be viewed in the GUI or downloaded for later viewing with tcpdump or Wireshark. Various filters may be added to restrict the scope of the capture, such as a specific ProtocolHost addressor Port among others. The size of the capture may be adjusted as well. Often a few thousand packets are necessary to catch certain activity.
The Level of detail selector only controls the level of detail displayed in the pfSense webGUI for viewing the contents of a capture. It may be adjusted after a capture has been taken, to view the capture with more detail, adjust this value and click View Capture.
Click Start to start a capture. While a capture is running, a Stop button is also displayed to stop a capture in progress. Download Capture initiates a download of the capture file for viewing locally or sending to a remote technician. It can be used over SSH or on the console in a shell.
The -i is designating traffic from the em0 interface. In this example traffic from one of the subnets em0 connected to a pfSense instance is being grabbed. For more information on tcdumpsee Using tcpdump from the command line. A second method of sniffing traffic via a shell is with iftop, which is available in the package repository.
Netgate Logo Netgate Docs. Previous Hardware Monitoring Support. View Capture shows the contents of the previous capture. See also For more information on tcdumpsee Using tcpdump from the command line.
In this example em1 is the LAN Interface: iftop -i em1.Network your employees, partners, customers, and other parties to share resources in site-to-cloud, cloud-to-cloud, and virtual private cloud VPC connectivity. Providing comprehensive network security solutions for the enterprise, large business and SOHO, pfSense solutions bring together the most advanced technology available to make protecting your network easier than ever before. Our products are built on the most reliable platforms and are engineered to provide the highest levels of performance, stability and confidence.
Our staff has direct access to the pfSense development team. If you purchase your hardware appliance from the pfSense store, our familiarity with the products will allow our support team to provide end-to-end solutions encompassing all aspects of the hardware and the firewall application. We know the challenges you face are complicated.
Netgate can help you implement effective solutions to solve those problems. We will help you plan, design, implement, operate, and manage the right technology strategy to improve the way you do business.
From network security to high-availability to firewall conversions, we provide effective solutions so you can focus on running your business.
Find out more at the Netgate website. Netgate is the only official source for pfSense Training! Our expert team provides quality on-line and on-site pfSense training to individuals and organizations of all sizes. We keep our class sizes small to provide each student the attention they deserve.
The curriculum is designed to scale in detail from new pfSense users to senior network engineers, and can be customized to suit the needs of your business. Protected with Snort.Bandwidth Monitoring on pfSense
Has been stable for months. Best open source firewall ever pfsense. That is all. Our Products. Get Support.
Learn More. Enroll Now. Learn what pfSense can do for you Take the Tour Screenshots, feature descriptions, and more.Forward order has the newest messages at the bottom of the display. Reverse order has the newest message at the top of the display. This is completely up to the user, letting them choose however they prefer to read the logs.
Default is unchecked forward order. The actual log files hold more entries, so this number may be increased at will. This will not resize the log files, however, only how many are displayed. Log File Size bytes : The size allocated for each circular log file.
Defaults to KB per file. Described in more detail in Adjusting the Size of Log Files. Log Firewall Default Blocks : Controls what logging is performed for default rules.
The options for block rules are checked by default. Web Server Log : Controls whether or not the GUI web server process itself will write its messages to the main system log. While useful for troubleshooting, it can be quite chatty and log some harmless but scary-looking messages.
Raw Logs : Selecting this option will display the contents of log files as-is without any parsing from the GUI. To see more detail, check Show raw filter logs and then view the log file again. Filter descriptions : Controls whether and how or not to display the firewall rule descriptions in the log. By default they are not shown, but can be viewed by clicking the action icon or at the far left of the firewall log entry.
Monitoring Internet Usage With LightSquid and pfSense
Using this option, they may also be displayed in an additional column or a separate row. Local Logging : Local logging on the firewall may be disabled as well using Disable writing log files to the local disk. Reset Logs : Pressing this button will clear log data from all of the logs managed by the pfSense base system. All logs are reinitialized having zero entries. The DHCP daemon is restarted when resetting logs. Log entries may be sent to as many as three remote syslog servers instead of held locally.
When using a remote syslog server, there is a choice of which types of events to send. Be sure that the receiving syslog server is configured to allow logging from this pfSense firewall. Source Address : Chooses which interface on the pfSense system to use for initiating log messages.
If the target syslog server is across an IPsec tunnel, this should be a local interface address inside of a Phase 2 definition for the IPsec tunnel. Enable Remote Logging : When checked, send syslog entries to the defined servers. Remote Syslog Servers : List of remote syslog servers. Remote Syslog Contents : Select the items which will be sent via remote syslog.
Everything is the preferred choice. Copying Logs to a Remote Host with Syslog. Working with Binary Circular Logs clog. Adjusting the Size of Log Files. Netgate Logo Netgate Docs. Previous Routing Logs.