On 09/17/2013 09:48 PM, Sachin Gupta wrote: > We are using Squid 3.1 and need to do the following: > 1. We have a list of URLs which we want to allow. > 2. Squid to read this list of URLs and for each matching entry in the > list, set a particular field (insert a string) in the HTTP header. > 3. Using this header string, a URL filtering program will allow the > URLs to be accessed. > > I explored the squid functionality and came across following: > a. header_replace : Not sure how i can use this for my case. Examples > and references are welcome. > b. request_header_replace: Not available in 3.1. Not possible to > upgrade to latest squid release. > > Is there any other option to do the same? Please suggest. If Squid upgrade is not an option, you can either modify your Squid sources or use eCAP/ICAP to do the adaptations you need. HTH, Alex.