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Editorial Team
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Asked: 2026-06-01T14:16:31+00:00

I’m writing a client that talks to a remote server over HTTP. I would

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I’m writing a client that talks to a remote server over HTTP. I would like to place an evil proxy between the client and the server that would (randomly?) affect the traffic on the wire.

Some things that I would like to happen:

  • arbitrary delays for the response
  • arbitrary HTTP errors
  • this scenario is hard to imagine with TCP but what the hell: truncated responses (ie malformed data)
  • temporary unavailability (though that seems hard given that this would have to be done at the lower network level).
  • predefined custom errors (eg: every request comes back with a service error)

Basically I want to simulate a range of networking conditions that the users of this software are going to experience out in the real world and make sure the client handles them gracefully.

I suspect (hope) that something like that already exists. Please point me in the right direction!

Thanks

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1 Answer

  1. Editorial Team

    HTTP Test Tool (htt) seems like what you need here. It has the ability to operate as a proxy and a reverse-proxy for testing those cases specifically, when a mock framework is insufficient to the task.

    For a truly evil proxy, consider using Squid in conjunction with the Metasploit Framework and some of the tools in BackTrack Linux. That seems to be a bit beyond your project scope, though!

    (Additional tools to consider, plus one more)

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