---
name: "varnishreplay"
section: "1"
platform: "linux"
package: "varnish"
version: "3.0.2-2+deb7u2"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/varnishreplay"
---

# varnishreplay(1)

HTTP traffic replay tool

## NAME

varnishreplay - HTTP traffic replay tool

## SYNOPSIS

varnishreplay \[-D\] -a address:port -r file

## DESCRIPTION

The varnishreplay utility parses varnish logs and attempts to reproduce the traffic. It is typcally used to *warm* up caches or various forms of testing.

The following options are available:

- **-a** *backend*

  Send the traffic over tcp to this server, specified by an address and a port.  This option is mandatory. Only IPV4 is supported at this time.

- **-D**

  Turn on debugging mode.

- **-r** *file*

  Parse logs from this file.  This option is mandatory.

## SEE ALSO

- •

  [varnishd(1)](/varnishd/1.md)

- •

  [varnishlog(1)](/varnishlog/1.md)

## HISTORY

The varnishreplay utility and this manual page were written by Cecilie Fritzvold and later updated by Per Buer.

## COPYRIGHT

This document is licensed under the same licence as Varnish itself. See LICENCE for details.

- •

  Copyright (c) 2007-2010 Varnish Software AS

## AUTHOR

Cecilie Fritzvold, Per Buer