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share/man/man4/netdump.4
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| .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||||
| .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||||
| .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||||
| .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||||
| .\" SUCH DAMAGE. | .\" SUCH DAMAGE. | ||||
| .\" | .\" | ||||
| .\" $FreeBSD$ | .\" $FreeBSD$ | ||||
| .\" | .\" | ||||
| .Dd December 5, 2018 | .Dd August 30, 2019 | ||||
| .Dt NETDUMP 4 | .Dt NETDUMP 4 | ||||
| .Os | .Os | ||||
| .Sh NAME | .Sh NAME | ||||
| .Nm netdump | .Nm netdump | ||||
| .Nd protocol for transmitting kernel dumps to a remote server | .Nd protocol for transmitting kernel dumps to a remote server | ||||
| .Sh SYNOPSIS | .Sh SYNOPSIS | ||||
| To compile netdump client support into the kernel, place the following line in | To compile netdump client support into the kernel, place the following line in | ||||
| your kernel configuration file: | your kernel configuration file: | ||||
| .Bd -ragged -offset indent | .Bd -ragged -offset indent | ||||
| .Cd "options NETDUMP" | .Cd "options NETDUMP" | ||||
| .Ed | .Ed | ||||
| .Sh DESCRIPTION | .Sh DESCRIPTION | ||||
| netdump is a UDP-based protocol for transmitting kernel dumps to a remote host. | netdump is a UDP-based protocol for transmitting kernel dumps to a remote host. | ||||
| A netdump client is a panicking kernel, and a netdump server is a host | A netdump client is a panicking kernel, and a netdump server is a host | ||||
| running the | running the | ||||
| .Nm | .Nm | ||||
| daemon, available in ports as | daemon, available in ports as | ||||
| .Pa ports/ftp/netdumpd . | .Pa ports/ftp/netdumpd . | ||||
| .Nm | .Nm | ||||
| clients are configured using the | clients are configured using the | ||||
| .Xr dumpon 8 | .Xr dumpon 8 | ||||
| utility. | utility or the | ||||
| .Ic netdump | |||||
| command in | |||||
| .Xr ddb 4 . | |||||
| .Pp | .Pp | ||||
| .Nm | .Nm | ||||
| client messages consist of a fixed-size header followed by a variable-sized | client messages consist of a fixed-size header followed by a variable-sized | ||||
| payload. | payload. | ||||
| The header contains the message type, a sequence number, the offset of | The header contains the message type, a sequence number, the offset of | ||||
| the payload data in the kernel dump, and the length of the payload data | the payload data in the kernel dump, and the length of the payload data | ||||
| (not including the header). | (not including the header). | ||||
| The message types are | The message types are | ||||
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