For example, run Firefox with proxychains and check your IP address as shown in the example below: To install proxychains on Debian based Linux distributions, run the following command:īefore continuing with Nmap, you can test Proxychains with any program. Random chain: With a random chain, all proxies will be selected randomly.Īfter reading this tutorial, you will know how to configure those modes, the advantages and limitations of the combination of Nmap with Proxychains.With Strict configuration, all proxies must be online or available otherwise, it won’t work. Strict chain: Contrary to dynamic chains.Dynamic chain: If this option is selected, at least one proxy must be available for the chain to work.Proxychains have 3 configuration options: Dynamic, Strict and Random. It supports protocols http, socks4 and socks5. The tool used to chain proxies in this tutorial is Proxychains, a tool available only for Linux. Implementing Proxychains can prevent this type of bug and increase anonymity and privacy through additional proxies. An example of this scenario would be a DNS leak in which, despite using a VPN, all DNS requests are sent to ISP-defined DNS. This is ok if the VPN is configured properly, but in some cases, there are bugs or security holes that may expose our traffic to our ISP or anyone monitoring the network traffic. Combining Proxychains with Nmap is a widely used technique to avoid being traced.įor example, usually, there is only a proxy between us and the destination when we implement a VPN.

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