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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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Hi Arnold, Netcheck uses ping and traceroute, for its use.. PING is part of ICMP so I do not think the netcheck results wold be useful if not accepting any ICMP traffic.... How has this affected the LDM..I see quite a blip on the 14th, but is seems smooth now.. Please see: http://www.unidata.ucar.edu/staff/chiz/rtstats/siteindex.shtml?vapor.soest.hawaii.edu Let us know if we can help further.. Cheers, Jeff --------------------------------------------------------------------- Jeff Weber address@hidden : Unidata Program Center PH:303-497-8676 : University Corp for Atmospheric Research 3300 Mitchell Ln : http://www.unidata.ucar.edu/staff/jweber Boulder,Co 80307-3000 : --------------------------------------------------------------------- On Tue, 16 Sep 2003, Unidata Support wrote: > > ------- Forwarded Message > > >To: <address@hidden> > >cc: Unidata User <address@hidden> > >From: <address@hidden> > >Subject: Re: Netcheck Results > >Organization: UCAR/Unidata > >Keywords: 200309161541.h8GFfpLd025164 > > This message is in MIME format. The first part should be readable text, > while the remaining parts are likely unreadable without MIME-aware tools. > Send mail to address@hidden for more info. > > ---559023410-758783491-1063726901=:24936 > Content-Type: TEXT/PLAIN; charset=US-ASCII > > Good Morning Support at Unidata > > At our University of Hawaii School of Ocean and Earth Science and > Technology (SOEST), the latest problem with MS Windows XP/2000 PCs and > their bug/feature has affected two PCs. And those computers managed to > significently reduce our network traffic throughput as they initiated > denial of services attacks. As a result of this, the System > Administration of our school has turned off all ICMP traffic into and out > of our domain (soest.hawaii.edu). This results in the netcheck perl > script to always fail with the default 20% treshold. So I have set the > treshold to 101% but am now wondering if it is usefull to continue to run > the netcheck cron job as long as ICMP traffic is blocked? The attached > files is a sample of output of "netcheck -t 101". Our systems folks are > particularly sensitive to ICMP traffic as until a firewall was installed a > number of years ago, our domain was a prime target/initiator for denial of > service attacks. > > Note on Submitting Support Requests: > I had first gone to your support web page at > http://my.unidata.ucar.edu/content/support/email_support.php > but could not see a quick or convenient way to include email messages in a > support request. For that reason I chose to send this request using email > to the support@unidata maillist. > > Arnold Hori/UH Meteorology/ITspecialist until my Sept. 30th retirement/ > > > > On Mon, 15 Sep 2003, Unidata User wrote: > > > netcheck Version 1.02: Sep 16 00:05:46 UTC > > > > 128.95.89.38: 100% packet loss > > sunny.atmos.washington.edu: 100% packet loss > > > > ---559023410-758783491-1063726901=:24936 > Content-Type: TEXT/PLAIN; charset=US-ASCII; name="netcheck.030916z15" > Content-Transfer-Encoding: BASE64 > Content-ID: <Pine.GSO.4.33.0309160541410.24936@zimbo> > Content-Description: > Content-Disposition: attachment; filename="netcheck.030916z15" > > bGRtX3ZhcG9yJSBuZXRjaGVjayAtdCAxMDENCg0KbmV0Y2hlY2sgICAgICAg > ICAgICAgICAgICAgICAgU2VwIDE2IDE1OjIwOjIxIFVUQyAgICAgICAgICAg > ICAgICBWZXJzaW9uOiAgMS4wMg0KPT09PT09PT09PT09PT09PT09PT09PT09 > PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 > PT09PT09PT09PQ0KDQpVcHN0cmVhbSBIb3N0czoNCg0KU2VwIDE2IDE1OjIw > OjQyIFVUQzogMTI4Ljk1Ljg5LjM4DQpfX19fX19fX19fX19fX19fX19fX19f > X18NCg0KcGluZyAtcyAxMjguOTUuODkuMzggNjQgMTA6DQotLS0tMTI4Ljk1 > Ljg5LjM4IFBJTkcgU3RhdGlzdGljcy0tLS0NCjEwIHBhY2tldHMgdHJhbnNt > aXR0ZWQsIDAgcGFja2V0cyByZWNlaXZlZCwgMTAwJSBwYWNrZXQgbG9zcw0K > DQoNCnRyYWNlcm91dGUgMTI4Ljk1Ljg5LjM4Og0KdHJhY2Vyb3V0ZSB0byAx > MjguOTUuODkuMzggKDEyOC45NS44OS4zOCksIDMwIGhvcHMgbWF4LCA0MCBi > eXRlIHBhY2tldHMNCiAxICBoaWctMTUxICgxMjguMTcxLjE1MS4xKSAgOCBt > cyAgMTcgbXMgIDMgbXMNCiAyICBrYWppICgxMjguMTcxLjE1MC45KSAgMTkg > bXMgIDcgbXMgIDE5IG1zDQogMyAgY29lLTEyNC5ndy5oYXdhaWkubmV0ICgx > MjguMTcxLjEyNC4xKSAgMTQgbXMgIDEyIG1zICA3IG1zDQogNCAgMTI4LjE3 > MS42NC4xOTAgKDEyOC4xNzEuNjQuMTkwKSAgMTUgbXMgIDQgbXMgIDIxIG1z > DQogNSAgMjA1LjE2Ni4yMDUuMjE3ICgyMDUuMTY2LjIwNS4yMTcpICA3MCBt > cyAgNzggbXMgIDcyIG1zDQogNiAgaHNucDItd2VzLWdlMC0wLTAtMC5wbnct > Z2lnYXBvcC5uZXQgKDE5OC4xMDcuMTQ0LjEpICA2OCBtcyAgNzAgbXMgIDcw > IG1zDQogNyAgdXdicjEtR0UzLTAuY2FjLndhc2hpbmd0b24uZWR1ICgxOTgu > MTA3LjE1MS41MSkgIDc0IG1zICA3NSBtcyAgNjEgbXMNCiA4ICBob292ZXIt > R0UxLTEuY2FjLndhc2hpbmd0b24uZWR1ICgxNDAuMTQyLjE1MC45KSAgNzAg > bXMgIDYzIG1zICA2MSBtcw0KIDkgIHN1bm55LmF0bW9zLndhc2hpbmd0b24u > ZWR1ICgxMjguOTUuODkuMzgpICA3NyBtcyAgNjcgbXMgIDY3IG1zDQoNCg0K > U2VwIDE2IDE1OjIxOjAyIFVUQzogc3VubnkuYXRtb3Mud2FzaGluZ3Rvbi5l > ZHUNCl9fX19fX19fX19fX19fX19fX19fX19fXw0KDQpwaW5nIC1zIHN1bm55 > LmF0bW9zLndhc2hpbmd0b24uZWR1IDY0IDEwOg0KLS0tLXN1bm55LmF0bW9z > Lndhc2hpbmd0b24uZWR1IFBJTkcgU3RhdGlzdGljcy0tLS0NCjEwIHBhY2tl > dHMgdHJhbnNtaXR0ZWQsIDAgcGFja2V0cyByZWNlaXZlZCwgMTAwJSBwYWNr > ZXQgbG9zcw0KDQoNCnRyYWNlcm91dGUgc3VubnkuYXRtb3Mud2FzaGluZ3Rv > bi5lZHU6DQp0cmFjZXJvdXRlIHRvIHN1bm55LmF0bW9zLndhc2hpbmd0b24u > ZWR1ICgxMjguOTUuODkuMzgpLCAzMCBob3BzIG1heCwgNDAgYnl0ZSBwYWNr > ZXRzDQogMSAgaGlnLTE1MSAoMTI4LjE3MS4xNTEuMSkgIDE3IG1zICA0IG1z > ICAxNSBtcw0KIDIgIGthamkgKDEyOC4xNzEuMTUwLjkpICAyIG1zICAxMSBt > cyAgMTQgbXMNCiAzICBjb2UtMTI0Lmd3Lmhhd2FpaS5uZXQgKDEyOC4xNzEu > MTI0LjEpICAxOSBtcyAgOCBtcyAgMjAgbXMNCiA0ICAxMjguMTcxLjY0LjE5 > MCAoMTI4LjE3MS42NC4xOTApICA5IG1zICA5IG1zICAxMyBtcw0KIDUgIDIw > NS4xNjYuMjA1LjIxNyAoMjA1LjE2Ni4yMDUuMjE3KSAgNzQgbXMgIDY0IG1z > ICA2NiBtcw0KIDYgIGhzbnAyLXdlcy1nZTAtMC0wLTAucG53LWdpZ2Fwb3Au > bmV0ICgxOTguMTA3LjE0NC4xKSAgNzAgbXMgIDYxIG1zICA2OCBtcw0KIDcg > IHV3YnIxLUdFMy0wLmNhYy53YXNoaW5ndG9uLmVkdSAoMTk4LjEwNy4xNTEu > NTEpICA3NyBtcyAgMTA1IG1zICA2NSBtcw0KIDggIGhvb3Zlci1HRTEtMS5j > YWMud2FzaGluZ3Rvbi5lZHUgKDE0MC4xNDIuMTUwLjkpICA3MyBtcyAgNzQg > bXMgIDY1IG1zDQogOSAgc3VubnkuYXRtb3Mud2FzaGluZ3Rvbi5lZHUgKDEy > OC45NS44OS4zOCkgIDY2IG1zICA2NyBtcyAgNjcgbXMNCg0KDQpEb3duc3Ry > ZWFtIEhvc3RzOg0KDQo= > ---559023410-758783491-1063726901=:24936-- > > > ------- End of Forwarded Message > >