![]() To ensure that the NxFilter service start even after a server reboot run the following: systemctl enable rvice Then you will need to start the service like so: systemctl start rvice If the result returned: Active: inactive (dead) Once the installation is complete run the following to see whether NxFilter is running: systemctl status rvice To run the installation package execute the following within putty: yum -nogpgcheck localinstall nxfilter-4.1.Ĭhange the file name in the above syntax to reflect the file name that you uploaded via WinSCP earlier in this process. Open Putty and navigate to your /tmp folder like so: cd /tmp We are now ready to install NxFilter onto our server. In my case the file was called nxfilter-4.1. Drag and drop your preferred rpm from your extracted files folder into your WinSCP /tmp pane. Now open WinSCP and navigate to the /tmp directory. Extract the files from zip file in preparation for uploading to your CentOS server. In my case it was named DeepWoods-nxfilter-rpms-e32cd76552c8.zip. Go to Rob Asher's NxFilter RPMs page here:Ĭlick the Download Repository link from the site above to download the zip file. Now we'll download the RPM packages necessary to install NxFilter. ![]() firewall-cmd -permanent -add-service=httpįirewall-cmd -zone=public -add-port=443/tcp -permanentįirewall-cmd -zone=public -add-port=53/tcp -permanentįirewall-cmd -zone=public -add-port=53/udp -permanent HTTP or port 80 is used to connect to the web GUI and port 53 is required to allow DNS requests from machines on your network. Now that your machine is up to date we'll open the ports necessary to connect to NxFilter once it's installed. Connect to your machine using Putty and ensure that your machine is patched fully by using: yum update My example is running as a VMWare virtual machine. This tutorial assumes that you have a working install of CentOS 7 and you have access to and know how to use Putty and WinSCP. Overall, a reliable DNS filtering toolĬonsidering all of the above, NxFilter proves to be a reliable DNS filtering application that enables you to monitor and restrict permissions for all Internet activity, as well as to detect and block malware or botnet activity by analyzing the DNS packet.Today I'll show you how to install and configure NxFilter on CentOS 7. Furthermore, it is possible to manage policy information, create a whitelist by domain, check out a list with known phishing websites, edit request details, as well as generate and study daily reports. You can get notifications about the user who tried to access blocked webpages, as well as create a list with as many users are necessary to associate them to IP addresses. It displays two graphs with the traffic and block trend, giving you the possibility to block remote hosts based on IP addresses, LDAP or password authentication method, in order to prevent suspected malware attacks, for example. Web interface with restricted sitesįrom this point on, NxFilter can be accessed from any web browser by visiting its dashboard in the local host. ![]() By downloading the additional libraries (specified on the website) and configuring the installed services afterward, you can finally get the DNS server up and running. However, you should keep in mind that NxFilter features a console interface for updating the required folders, which means that you have to be familiarized with switches. ![]() Since the program is actually a forwarding DNS server, you can apply the exact method of setting up a DNS server for user systems. Get the DNS server up and runningīy accessing the "Network and Sharing Center panel", you can choose the TCP / IP protocol to configure for using a specific DNS server address. Although it may seem easy to handle, the tool actually requires some experience with networking tools, since it's mostly designed for administrators and other IT specialists. NxFilter is a comprehensive software application for monitoring and examining the HTTP traffic in your network, as well as for restricting access to websites. ![]()
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