Hi, there is a known problem with certain Java applets (http(s) clients) when using NTLM authentication (see e.g. [1]). In Squid 2 a widely adopted workaround was to force basic authentication for those clients: acl javaNtlmFix browser -i java acl javaConnect method CONNECT header_access Proxy-Authenticate deny javaNtlmFix javaConnect header_replace Proxy-Authenticate Basic realm="foo" I don't get this to work in Squid 3. The 'header_access' option has been split into {request,reply}_header_access, and 'header_replace' seems to have been changed to only apply to request headers. Any ideas? I'm sure I'm missing something. I experimented with a couple of other options, but without getting the wanted result. Disabling authentication completely for Java applets isn't feasible (security policy). I did find a couple of similar reports on the mailing lists archives, but no solution AFAICT. We're running squid3-3.0.STABLE19 on SLES10-SP1. We could easily deploy custom RPMs built from e.g. a newer Squid version if there is a known solution. Thanks, Marco [1] http://squid-web-proxy-cache.1019090.n4.nabble.com/force-basic-NTLM-auth-for-certain-clients-urls-td1023739.html