It is our * job to build the TCP header, and pass the packet down to * IP so it can do the same plus pass the packet off to the * device. * * We are working here with either a clone of the original * SKB, or a fresh unique copy made by the retransmit engine. 复制或者拷贝...
Checksum(16 bits): The Transmission Control Protocol can reliably detect transmission errors. The checksum calculated from the header, the payload data and the pseudo-header is used for this purpose. Urgent pointer(16 bits): The urgent pointer indicates the position of the first byte after the p...
Now use the --http-host parameter to force the HOST field value of the http header to be the actual value of the backend.Domain names and ports can be easily solved. After using the --http-host parameter, two headers will be added to the header of each HTTP request. The X-Forwarded...
Now use the --http-host parameter to force the HOST field value of the http header to be the actual value of the backend.Domain names and ports can be easily solved. After using the --http-host parameter, two headers will be added to the header of each HTTP request. The X-Forwarded...
对于GET 方式的请求,浏览器会把http header和data一并发送出去,服务器响应200(返回数据)对于POST,浏览器先发送header,服务器响应100 continue,浏览器再发送data,服务器响应200 ok并不是所有浏览器都会在POST中发送两次包,Firefox就只发送一次面试官:说一下 GET 和 POST 的区别?
增加HTTP Header 格式。 增加协议版本号。 增加POST 方法。 增加HEAD 方法。 增加文件处理类型。 增加响应状态码。 提供国际化支持。 经过几年的发展,1999 年,HTTP/1.1 发布并成为标准,写入 RFC。至此,HTTP 协议已然成为了 Web 世界的奠基石。 增加PUT 等方法。
Instead, UDP formats the message that is received from the application layer into UDP packets. UDP attaches a header to each packet. The header contains the sending and receiving ports, a field with the length of the packet, and a checksum. ...
Specifies the value for Explicit Congestion Notification (ECN) marking. This parameter value controls the specific ECN marking in the ECN field of the IP header. The acceptable values for this parameter are: -- AppDecide. Allow an application or higher layer protocol, such as TCP, to decide ...
Verify CRC strip frame header and trailer; discard if invalid. Verify IP header checksum; discard if invalid. Check IP parameters; discard if invalid or does not match policy. Decrease the Time to Live field in the packet. If the field now reads 0, discard the packet and send an ICMP me...
Common types of packets are processed by the NID in a fast-path such that the stack is offloaded of TCP and IP protocol processing tasks. A hash is made from the packet header and is pushed onto a queue. The hash is later popped off the queue and is used to identify an associated ...