能否在网关上实现数据传输只进不出

springwind426

在squid中有个关于头的大小的限制，如果是上传的话，头应该是很大的，如果只是访问某个网页，或者是下载文件，那么http的头的字节是很少的，你可以一点一点增加，应该大致能够做到你的要求

这是控制上传的：
#  TAG: request_header_max_size (KB)
#       This specifies the maximum size for HTTP headers in a request.
#       Request headers are usually relatively small (about 512 bytes).
#       Placing a limit on the request header size will catch certain
#       bugs (for example with persistent connections) and possibly
#       buffer-overflow or denial-of-service attacks.
#
#Default:
# request_header_max_size 20 KB

#  TAG: request_body_max_size   (KB)
#       This specifies the maximum size for an HTTP request body.
#       In other words, the maximum size of a PUT/POST request.
#       A user who attempts to send a request with a body larger
#       than this limit receives an "Invalid Request" error message.
#       If you set this parameter to a zero (the default), there will
#       be no limit imposed.
#
#Default:
# request_body_max_size 0 KB

－－－－－－－－－－－－－－
下面这些是控制下载的：
#  TAG: reply_header_max_size   (KB)
#       This specifies the maximum size for HTTP headers in a reply.
#       Reply headers are usually relatively small (about 512 bytes).
#       Placing a limit on the reply header size will catch certain
#       bugs (for example with persistent connections) and possibly
#       buffer-overflow or denial-of-service attacks.
#
#Default:
# reply_header_max_size 20 KB

#  TAG: reply_body_max_size     bytes allow|deny acl acl...
#        This option specifies the maximum size of a reply body in bytes.
#       It can be used to prevent users from downloading very large files,
#       such as MP3's and movies. When the reply headers are recieved,
#       the reply_body_max_size lines are processed, and the first line with
#       a result of "allow" is used as the maximum body size for this reply.
#       This size is checked twice. First when we get the reply headers,
#       we check the content-length value.  If the content length value exists
#       and is larger than the allowed size, the request is denied and the
#       user receives an error message that says "the request or reply
#       is too large." If there is no content-length, and the reply
#       size exceeds this limit, the client's connection is just closed
#       and they will receive a partial reply.
#
#       WARNING: downstream caches probably can not detect a partial reply
#       if there is no content-length header, so they will cache
#       partial responses and give them out as hits.  You should NOT
#       use this option if you have downstream caches.
#
#       If you set this parameter to zero (the default), there will be
#       no limit imposed.
#
#Default:
# reply_body_max_size 0 allow all

[ 本帖最后由 springwind426 于 2007-5-22 09:22 编辑 ]