Man page - udpxrec(1)

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Manual

udpxrec

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLES
AUTHORS
SEE ALSO

NAME

udpxrec - a programmable multicast traffic recording utility.

SYNOPSIS

udpxrec [-v] [-b <begin_time> ] [-e <end_time> ] [-M <maxfilesize> ] [-p <pidfile> ] [-B <bufsizeK> ] [-n <nice_incr> ] [-u <seconds_to_wait> ] [-m <mcast_ifc_addr> ] [-l <logfile> ] -c <src_addr> : <port> <dstfile>

DESCRIPTION

udpxrec is a utility designed to record (save into a disk file) a segment of multicast network traffic; the amount of data saved/recorded could be specified in length (KB) or duration (seconds).

OPTIONS

udpxrec accepts the following options:

-v

Enable verbose output [default = disabled ].

-T

Do NOT run as a daemon [default = daemon if root ].

-m <mcast_ifc_addr>

IPv4 address/interface of (multicast) source [default = 0.0.0.0 ].

-l <logfile>

Log output to file [default = stderr ].

-n <nice_incr>

Nice value increment [default = 0 ].

-B <sizeK>

Buffer size (65536, 32Kb, 1Mb) for inbound (multicast) data [default = 2048 bytes ].

-R <msgs>

Maximum number of messages to buffer ( -1 = all ) [default = 1 ].

-b <begin_time>

Begin recording at [+]dd:hh24:mi.ss , ’ + ’ signifies relative timing (in N hours/min/sec).

-e <endtime>

Stop recording at [+]dd:hh24:mi.ss , ’ + ’ signifies relative timing (in N hours/min/sec).

-M <maxfilesize>

Maximum size of destination file.

-p <pidfile>

Pidfile for this process [ MUST be specified if daemon ].

-u <seconds_to_wait>

Seconds to wait before updating on how long till recording starts.

EXAMPLES

udpxrec -b 15:45.00 -e +2:00.00 -M 1.5Gb -n 2 -B 64K -c 224.0.11.31:5050 /opt/video/tv5.mpg

Begin recording multicast channel 224.0.11.31:5050 at 15:45 today, finish recording in two hours or if destination file size >= 1.5 Gb; set socket buffer to 64Kb; increment nice value by 2; write captured video to /opt/video/tv5.mpg.

AUTHORS

Pavel V. Cherenkov and all the good people who submitted patches or otherwise contributed to the project.

SEE ALSO

udpxy (1)