Nc: mengukur bandwidth: Difference between revisions

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New page: You can do pretty much the same thing with plain old nc (netcat) if you're that way inclined. On the server machine: nc -vvlnp 12345 >/dev/null And the client can pipe a gigabyte of zero...
 
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You can do pretty much the same thing with plain old nc (netcat) if you're that way inclined. On the server machine:
Di mesin server (10.10.0.2)


nc -vvlnp 12345 >/dev/null
nc -vvlnp 12345 >/dev/null


And the client can pipe a gigabyte of zeros through dd over the nc tunnel.
Di sisi client kirim gigabyte zero melalui dd lewat nc tunnel


dd if=/dev/zero bs=1M count=1K | nc -vvn 10.10.0.2 12345
dd if=/dev/zero bs=1M count=1K | nc -vvn 10.10.0.2 12345


As demod:
Waktu demo akan keluar kira-kira


$ dd if=/dev/zero bs=1M count=1K | nc -vvn 10.10.0.2 12345
$ dd if=/dev/zero bs=1M count=1K | nc -vvn 10.10.0.2 12345
Connection to 10.10.0.2 12345 port [tcp/*] succeeded!
Connection to 10.10.0.2 12345 port [tcp/*] succeeded!
1024+0 records in
1024+0 records in
1024+0 records out
1024+0 records out
1073741824 bytes (1.1 GB) copied, 9.11995 s, 118 MB/s
1073741824 bytes (1.1 GB) copied, 9.11995 s, 118 MB/s


The timing there is given by dd but it should be accurate enough as it can only output as fast the pipe will take it. If you're unhappy with that you could wrap the whole thing up in a time call.
Perhatikan bahwa hasilnya dalam megabyte per detik, perlu dikali 8 untuk dapat megabit per detik.
 
Remember that the result is in megabytes so multiply it by 8 to get a megabits-per-second speed. The demo above is running at 944mbps.




Revision as of 23:42, 3 June 2015

Di mesin server (10.10.0.2) 

nc -vvlnp 12345 >/dev/null

Di sisi client kirim gigabyte zero melalui dd lewat nc tunnel 

dd if=/dev/zero bs=1M count=1K | nc -vvn 10.10.0.2 12345

Waktu demo akan keluar kira-kira 

$ dd if=/dev/zero bs=1M count=1K | nc -vvn 10.10.0.2 12345
Connection to 10.10.0.2 12345 port [tcp/*] succeeded!
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 9.11995 s, 118 MB/s

Perhatikan bahwa hasilnya dalam megabyte per detik, perlu dikali 8 untuk dapat megabit per detik.


Referensi

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