Hi, How to enable mutual authentication of both squid server and the clients? I am using squid in reverse proxy mode and using digest authentication. The requirement is: both client and server needs to mutually authenticate each other on every request/response So the REQUEST from client will be like: GET http://squid-server/resource Authorization: Digest username=username, realm=”realm”, nonce=ccc, cnonce=ddd, response=H(username, password, ccc) and on successful authentication, the squid server RESPONSE will have the following header: 200 OK Authentication-Info: rspauth=H(username, password, <cnonce>), nextnonce=cce My current squid digest configuration is as follows: auth_param digest program ~/squid_reverse_proxy/libexec/digest_pw_auth ~/squid_reverse_proxy/etc/digest_passwd auth_param digest children 5 auth_param digest realm Squid proxy-caching web server auth_param digest nonce_garbage_interval 5 minutes auth_param digest nonce_max_duration 30 minutes auth_param digest nonce_max_count 50 With this configuration, I am not getting rspauth in the response from squid. How to fix this? [Even nextnonce field does not get set. But when nonce_max_count is set to 1, squid sets the nextnonce header] Thanks, Deepak