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Re:The Story of the PING Program (1997) by lbenes on Saturday October 11, 2014 @04:02PM (#8443293)
Am I the only one that finds the MS Windows ping more useful for quick troubleshooting that the Linux/Unix variants? A few weeks ago I was dealing poor performance on my cable modem. When I pinged a valid IP, I was seeing the successful packets only. It didn't show time-out packets until the summary displayed on exit. This makes it useless for quick real-time monitoring. MS ping on the other hand will show time-outs along with the successful ones.

Why is Linux ping this way? Is this a fundamental design flaw?

Re:The Story of the PING Program (1997) by switch007 on Saturday October 11, 2014 @04:41PM (#8443390)
'oping' fixes that issue:

  $ oping msn.com
  PING msn.com (23.101.196.141) 56 bytes of data.
  echo reply from msn.com (23.101.196.141): icmp_seq=1 timeout
  echo reply from msn.com (23.101.196.141): icmp_seq=2 timeout
  echo reply from msn.com (23.101.196.141): icmp_seq=3 timeout
Also, in standard ping, you can type Ctrl+\ (sends the QUIT signal) to get an update, e.g.

  $ ping msn.com
  PING msn.com (23.101.196.141) 56(84) bytes of data.
  <<< Ctrl+\ >>>
  7/0 packets, 100% loss
Re:The Story of the PING Program (1997) by Moru on Sunday October 12, 2014 @04:43AM (#8444786)
ctrl+break does the same on windows ping.
Re:The Story of the PING Program (1997) by Palomides on Saturday October 11, 2014 @04:12PM (#8443316)
based on a quick perusal of the man page, the -O option will show something like "no answer yet for icmp_seq=19" when a packet doesn't get a response in time for the next one, and at least for me the default shows the icmp_seq which increases by one for each packet sent, but is only printed on each receipt (so you can spot missing ones).
Re:The Story of the PING Program (1997) by aw3c2 on Saturday October 11, 2014 @05:17PM (#8443469)
I use mtr nowadays. It's not ping but a traceroute that updates as it goes. I find it much more useful than a plain ping in most cases.
Re:The Story of the PING Program (1997) by B-Con on Saturday October 11, 2014 @07:25PM (#8443708)
> Am I the only one that finds the MS Windows ping more useful for quick troubleshooting that the Linux/Unix variants?

If you can read the output, or just recognize the difference between successful and unsuccessful lines, it works just as well for this.

> Is this a fundamental design flaw?

It's handy UX, but not the fundamental purpose of ping.

Re:The Story of the PING Program (1997) by Adaptive on Sunday October 12, 2014 @02:42PM (#8446169)
On current iputils ping (seems to be default on most linux distros) you should be using flood ping for this:

    # ping -f x.x.x.x
As superuser or su -c / sudo of course. You'll get a nice real time bar chart of packet loss. I use it all the time for (edit: local) network testing.
Re:The Story of the PING Program (1997) by 300bps on Sunday October 12, 2014 @03:12PM (#8446246)
That's fine on your local network. If you're pinging a system out of your local network, what you're doing is considered by many to be a denial of service attack.

http://en.wikipedia.org/wiki/Ping_flood

It's not even close to the most effective denial of service attack, but if I were to do that from my 100 Mbps Internet line I could overwhelm many company's Internet lines with a simple ping flood.

Re:The Story of the PING Program (1997) by Adaptive on Tuesday October 14, 2014 @12:11AM (#8451938)
Sure. I added "local" about a second after posting for this reason. However even with -f you can just specify an interval when running tests outside your lan.
Re:The Story of the PING Program (1997) by kruczek on Monday October 13, 2014 @03:57AM (#8447864)
It still writes icmp_seq, which increases by one for each subsequent packet sent - based on this you can spot any missing responses. Indeed not as visible as in Windows though.
Re:The Story of the PING Program (1997) by mikeash on Saturday October 11, 2014 @09:06PM (#8443945)
One theoretical problem with this is that it's impossible to know for sure that a packet has been lost and there's no one-size-fits-all timeout to use. On most links it doesn't matter too much, but that may be the reasoning. I've seen ping times spike in excess of two minutes on real-world internet connections (abusing 1xRTT data through a RAZR back when those were still cool) and it was... if not useful, at least interesting, to know that the data wasn't actually being dropped but was just taking a really long time.