With you there man...

Post #314,081 by folkert 9/15/09 9:47:38 AM Reply	With you there man... Its become so regular that I have an mtr tracing my route to the hop just inside the COLO we are in. When all of a sudden my ssh sessions go "dead" I just wait about a minute and then look. Its a PITA, and also why I use my own DNS server.
Post #314,084 by malraux 9/15/09 12:33:38 PM Reply	? Not sure I follow you... Regards, -scott Welcome to Rivendell, Mr. Anderson.
Post #314,086 by boxley 9/15/09 12:39:15 PM Reply	dns is prolly dropping out from underneath you
Post #314,095 by malraux 9/15/09 3:49:01 PM Reply	It's not DNS I can't ping or traceroute numerics outside of my gateway either. Regards, -scott Welcome to Rivendell, Mr. Anderson.
Post #314,102 by boxley 9/15/09 5:06:51 PM Reply	you might have a filter upstream of you I had some problems similar then the phone quit completely. They roll a truck and it turns out that a neighbor had signal problems so he put a filter on mine that killed my signals. Report on dslreports.com as their customer care folks monitor that. Senior customer support folks
Post #314,103 by folkert 9/15/09 5:21:59 PM Reply	Except when they have you flagged as... a troublesome customer for over a decade. I've been right every time they had problems and told them the exact problem they had and how to fix it. Yet every time they say "sure... yup" Oh well. I wish I had a another cost effective choice. Even Business Class won't get me what I need. They don't consider "real time" as a core part of their product any more.
Post #314,087 by folkert 9/15/09 12:44:59 PM Reply	IOW... I get the dead ssh sessions syndrome at least 3-10 times a day. (once today during a 83GB file move, thanks screen!) Then just before I am sure they are completely dead, they start responding (thanks keepalive!) and perhaps lose 1-4 of my 30+ sessions. I use MTR to see when and where the issues are, I use it to tell me if its the Head-End problem or elsewhere.. Lately its been from my DOCSIS router/headend (first hop from the Cable Modem) and DNS lookup issues. Sorry, context switches are very quick for me lately, sorry if you didn't follow.
Post #314,096 by malraux 9/15/09 3:49:19 PM Reply	What's MTR? I'd love to be able to troubleshoot this. Regards, -scott Welcome to Rivendell, Mr. Anderson.
Post #314,098 by mvitale 9/15/09 4:05:45 PM Reply	Re: What's MTR? www.bitwizard.nl/mtr/ -Mike "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin, 1759 Historical Review of Pennsylvania
Post #314,099 by folkert 9/15/09 4:08:41 PM Reply	Re: What's MTR? MTR == Matt's Trace Route greg@maxime:~ [0] $ apt-cache show mtr Package: mtr Priority: extra Section: net Installed-Size: 168 Maintainer: Robert Woodcock <rcw@debian.org> Architecture: i386 Version: 0.75-2 Replaces: mtr-tiny Depends: libatk1.0-0 (>= 1.20.0), libc6 (>= 2.7-1), libcairo2 (>= 1.2.4), libglib2.0-0 (>= 2.12.0), libgtk2.0-0 (>= 2.12.0), libncurses5 (>= 5.6+20071006-3), libpango1.0-0 (>= 1.20.2) Conflicts: mtr-tiny, suidmanager (<< 0.50) Filename: pool/main/m/mtr/mtr_0.75-2_i386.deb Size: 51700 MD5sum: ec83b87e3a7b76115e7eb94001550a9f SHA1: 0eb4288193099349f225dad815390d443791d02d SHA256: bc2aa79e80b7cc8141ae0c430882ce06b7ffc2520a81b792f1c10bfa5a0135c8 Description: Full screen ncurses and X11 traceroute tool mtr combines the functionality of the 'traceroute' and 'ping' programs in a single network diagnostic tool. . As mtr starts, it investigates the network connection between the host mtr runs on and a user-specified destination host. After it determines the address of each network hop between the machines, it sends a sequence ICMP ECHO requests to each one to determine the quality of the link to each machine. As it does this, it prints running statistics about each machine. Tag: interface::text-mode, interface::x11, network::scanner, protocol::ip, role::program, scope::utility, uitoolkit::gtk, uitoolkit::ncurses, use::checking, use::routing, x11::application I typically use MTR-tiny, which is a curses based proggy. It is available for OSX and/or can be compiled for it. http://www.bitwizard.nl/mtr/ The source download for current 0.75: ftp://ftp.bitwizard....r/mtr-0.75.tar.gz
Post #314,113 by malraux 9/15/09 9:59:49 PM Reply	Thanks. Easy to compile. Regards, -scott Welcome to Rivendell, Mr. Anderson.
Post #314,116 by malraux 9/15/09 10:25:59 PM Reply	Packet loss of 25% Half second pings to my gateway, too. Regards, -scott Welcome to Rivendell, Mr. Anderson.

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