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Full Discussion: firewall vs. closing ports
Special Forums Cybersecurity firewall vs. closing ports Post 15101 by adam_crosby on Sunday 10th of February 2002 04:24:34 PM
Old 02-10-2002
Thanks...that was exactly what i was looking for Smilie
I figured that if there was no prog attached, or no socket listening, that nothing would be able to happen (excepting Neo's answer). I was just making sure the kernel didn't carry any 'built-in' functionality, as far as answering calls on non-open ports were concerned. And apparently, the answer is, excepting ICMP, no. Thanks Guys!
 

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IBV_UD_PINGPONG(1)						   USER COMMANDS						IBV_UD_PINGPONG(1)

NAME
ibv_ud_pingpong - simple InfiniBand UD transport test SYNOPSIS
ibv_ud_pingpong [-p port] [-d device] [-i ib port] [-s size] [-r rx depth] [-n iters] [-l sl] [-e] HOSTNAME ibv_ud_pingpong [-p port] [-d device] [-i ib port] [-s size] [-r rx depth] [-n iters] [-l sl] [-e] DESCRIPTION
Run a simple ping-pong test over InfiniBand via the unreliable datagram (UD) transport. OPTIONS
-p, --port=PORT use TCP port PORT for initial synchronization (default 18515) -d, --ib-dev=DEVICE use IB device DEVICE (default first device found) -i, --ib-port=PORT use IB port PORT (default port 1) -s, --size=SIZE ping-pong messages of size SIZE (default 2048) -r, --rx-depth=DEPTH post DEPTH receives at a time (default 500) -n, --iters=ITERS perform ITERS message exchanges (default 1000) -l, --sl=SL send messages with service level SL (default 0) -e, --events sleep while waiting for work completion events (default is to poll for completions) SEE ALSO
ibv_rc_pingpong(1), ibv_uc_pingpong(1), ibv_srq_pingpong(1) AUTHORS
Roland Dreier <rolandd@cisco.com> BUGS
The network synchronization between client and server instances is weak, and does not prevent incompatible options from being used on the two instances. The method used for retrieving work completions is not strictly correct, and race conditions may cause failures on some systems. libibverbs August 30, 2005 IBV_UD_PINGPONG(1)
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