2017年6月21日 · TCP协议中的URG（Urgent）和PSH（Push）是两个不同的标志位（Flag），用于指示TCP段的特殊处理和传输要求。 1. URG标志位（URGENT）： -URG标志位用于指示TCP段中存在紧急数据。 -当URG标志位被设置时，TCP段中的紧急数据被标记为优先处理，接收方应尽快处理这部分数据。

2012年2月5日 · The URG bit, if set prioritizes the data, meaning thereby instead of waiting for the entire byte stream to be transmitted which is ahead of the "Urgent" data, the urgent data will be sent on urgent basis and will not wait for the entire byte …

2018年5月23日 · urg：该位设为 1，表示包中有需要紧急处理的数据，对于需要紧急处理的数据，与后面的紧急指针有关； ACK ：该位设为 1 ，确认应答的字段有效， TCP 规定除了最初建立连接时的 SYN 包之外该位必须设为 1 ；

2023年4月13日 · Urgent (URG) – It is used to indicate that the data contained in the packet should be prioritized and handled urgently by the receiver. This flag is used in combination with the Urgent Pointer field to identify the location of the urgent data in the packet.

2018年8月7日 · vcs中，可以使用urg命令生成覆盖率报告，其实urg命令本身是一个sh脚本，本文对该脚本进行分析。 vcs版本：2016.06 ##### # env check & setting about VCS_HOME ##### #set mode flag linux -> 32, mode64 -> 64; filter

2012年7月26日 · The TCP header contains several one-bit boolean fields known as flags used to influence the flow of data across a TCP connection.

Probably the best way to avoid the security implications of TCP "urgent data" is to avoid having applications use the TCP urgent mechanism altogether. Packet scrubbers could probably be configured to clear the URG bit and set the Urgent Pointer to zero. This would basically cause the "urgent data" to be put "in line".

2015年12月23日 · The URG flag is used to inform a receiving station that certain data within a segment is urgent and should be prioritized. If the URG flag is set, the receiving station evaluates the urgent pointer, a 16-bit field in the TCP header.

2023年4月24日 · The main difference between the PSH and URG flags is the type of data they indicate. The PSH flag indicates that the data should be pushed to the application layer as soon as it is received, while the URG flag indicates that certain data requires immediate attention.

TCP provides a means for a process to prioritize the sending of data in the form of its “urgent” feature. To use it, the process that needs to send urgent data enables the function and sends the urgent data to its TCP layer. TCP then creates a special TCP segment that has the …