在局域网通过透明代理访问外部的web服务器时,在web服务器端,通过header  HTTP_X_FORWARDED_FOR 可以知道代理服务器的服务器名以及端口,通过HTTP_VIA可以知道客户的内部ip,这会带来一些安全问题,并且某些论坛会发现用的是代理访问,怎么让squid隐藏这些信息呢.通过研究squid的源代码,发现在/etc/squid/squid.conf中添加2行:
       header_access Via deny all
       header_access X-Forwarded-For deny all
就可以把它关闭

要去掉其他的header,也可以照此操作:

 
Accept  HTTP_ACCEPT
Accept-Charset  HTTP_ACCEPT-CHARSET
Accept-Encoding  HTTP_ACCEPT-ENCODING
Accept-Language  HTTP_ACCEPT-LANGUAGE
Accept-Ranges  HTTP_ACCEPT-RANGES
Age  HTTP_AGE
Allow  HTTP_ALLOW
Authorization  HTTP_AUTHORIZATION
Cache-Control  HTTP_CACHE-CONTROL
Connection  HTTP_CONNECTION
Content-Base  HTTP_CONTENT-BASE
Content-Disposition  HTTP_CONTENT-DISPOSITION
Content-Encoding  HTTP_CONTENT-ENCODING
Content-Language  HTTP_CONTENT-LANGUAGE
Content-Length  HTTP_CONTENT-LENGTH
Content-Location  HTTP_CONTENT-LOCATION
Content-MD5  HTTP_CONTENT-MD5
Content-Range  HTTP_CONTENT-RANGE
Content-Type  HTTP_CONTENT-TYPE
Cookie  HTTP_COOKIE
Date  HTTP_DATE
ETag  HTTP_ETAG
Expires  HTTP_EXPIRES
From  HTTP_FROM
Host  HTTP_HOST
If-Match  HTTP_IF-MATCH
If-Modified-Since  HTTP_IF-MODIFIED-SINCE
If-None-Match  HTTP_IF-NONE-MATCH
If-Range  HTTP_IF-RANGE
Last-Modified  HTTP_LAST-MODIFIED
Link  HTTP_LINK
Location  HTTP_LOCATION
Max-Forwards  HTTP_MAX-FORWARDS
Mime-Version  HTTP_MIME-VERSION
Pragma  HTTP_PRAGMA
Proxy-Authenticate  HTTP_PROXY-AUTHENTICATE
Proxy-Authentication-Info  HTTP_PROXY-AUTHENTICATION-INFO
Proxy-Authorization  HTTP_PROXY-AUTHORIZATION
Proxy-Connection  HTTP_PROXY-CONNECTION
Public  HTTP_PUBLIC
Range  HTTP_RANGE
Referer  HTTP_REFERER
Request-Range  HTTP_REQUEST-RANGE
Retry-After  HTTP_RETRY-AFTER
Server  HTTP_SERVER
Set-Cookie  HTTP_SET-COOKIE
Title  HTTP_TITLE
Transfer-Encoding  HTTP_TRANSFER-ENCODING
Upgrade  HTTP_UPGRADE
User-Agent  HTTP_USER-AGENT
Vary  HTTP_VARY
Via  HTTP_VIA
Warning  HTTP_WARNING
WWW-Authenticate  HTTP_WWW-AUTHENTICATE
Authentication-Info  HTTP_AUTHENTICATION-INFO
X-Cache  HTTP_X-CACHE
X-Cache-Lookup  HTTP_X-CACHE-LOOKUP
X-Forwarded-For  HTTP_X-FORWARDED-FOR
X-Request-URI  HTTP_X-REQUEST-URI
X-Squid-Error  HTTP_X-SQUID-ERROR
Negotiate  HTTP_NEGOTIATE
X-Accelerator-Vary  HTTP_X-ACCELERATOR-VARY
Other:  HTTP_OTHER: