Linuxtcpdump packet capture parameters

Function description: dumping network transmission data. Syntax: tcpdump [-adeflnNOpqStvx] [-c] [-dd] [-ddd] [-F] [-I] [-r] [-s] [-tt] [-T] [-vv] [-w] [output data column] supplementary description: run the tcpdump command to list the packet headers that pass through the specified network. in Linux, you must be a system administrator. Parameter:-a function description: dumping network transmission data.
Syntax: Tcpdump[-AdeflnNOpqStvx] [-c] [-dd] [-ddd] [-F] [-I] [-r] [-s] [-tt] [-T] [-vv] [-w] [output data column]
Note: You can run the tcpdump command to list the packet headers that pass through the specified network. in Linux, you must be a system administrator.
Parameters:
-A tries to convert the network and broadcast address to a name.
-C stops dumping after receiving the specified number of data packets.
-D converts compiled data packet encoding into a readable format and dumps it to standard output.
-Dd converts the compiled data packet encoding to the C language format and dumps it to the standard output.
-Ddd converts the compiled data packet encoding to a decimal number format and dumps it to the standard output.
-E displays the connection level file header on each column of dumped data.
-F displays the internet address in numbers.
-F indicates the file containing the expression.
-I sends data packets using the specified network section.
-L use the buffer of the standard output column.
-N does not convert the network address of the host into a name.
-N does not list domain names.
-O does not optimize packet encoding.
-P prevents the network interface from entering the hybrid mode.
-Q: fast output. only a few transmission protocol information are listed.
-R reads data from a specified file.
-S sets the size of each packet.
-S: use absolute rather than relative values to list the number of TCP connections.
-T the time stamp is not displayed on the dumped data in each column.
-Tt displays unformatted timestamps on the dumped data in each column.
-T forcibly translates the data packet specified by the expression into the set data packet type.
-V displays the instruction execution process in detail.
-Vv: displays the instruction execution process in detail.
-X uses a hexadecimal code to list data packets.
-W writes the data packet to the specified file.