MTR began being installed by default in place of traceroute. If you don't know mtr, get it in your life. It's usually how I know when cox has saturation issues at their peering with buffers killing my internet, and replaces traceroute in any number of ways. > mtr google.com > mtr --report -c 5 google.com Start: Tue Jan 3 13:11:33 2017 HOST: host Loss% Snt Last Avg Best Wrst StDev 1.|-- fw1.peoria1.unifiedconver 0.0% 5 0.3 0.3 0.2 0.3 0.0 2.|-- ??? 100.0 5 0.0 0.0 0.0 0.0 0.0 3.|-- 100.127.69.154 0.0% 5 9.3 9.1 8.2 10.6 0.7 4.|-- 72.215.229.22 0.0% 5 9.1 11.0 9.1 13.4 2.0 5.|-- langbprj02-ae1.0.rd.la.co 0.0% 5 21.7 21.7 21.2 22.5 0.0 6.|-- 72.14.215.221 0.0% 5 21.1 21.4 21.1 22.1 0.0 7.|-- 216.239.51.33 0.0% 5 22.9 22.0 21.4 22.9 0.5 8.|-- 209.85.246.187 0.0% 5 22.2 21.7 20.6 22.4 0.5 9.|-- 64.233.174.207 0.0% 5 37.3 37.5 36.3 40.8 1.7 10.|-- 209.85.246.39 0.0% 5 36.4 36.8 35.7 37.8 0.7 11.|-- 108.170.243.1 0.0% 5 39.7 36.9 35.5 39.7 1.5 12.|-- 108.170.237.105 0.0% 5 35.9 36.1 35.0 37.6 0.9 13.|-- sfo03s01-in-f206.1e100.ne 0.0% 5 36.7 36.7 35.4 38.2 1.0 -mb On Tue, Jan 3, 2017 at 12:41 PM, Carruth, Rusty wrote: > Excellent step-by-step! +100 upvotes! ;-) > > > > The only thing I’d add is that, if you can get an external IP address > (e.g. 204.110.11.131 (inficad.com - don’t ask) or 216.58.194.206 (one > possible value for google.com) and then do a traceroute -n to that > address, you can see (without needing DNS) if the packets get out, and how > far they get if they don’t get all the way out…. > > > > So, “traceroute -n 216.58.194.206” > > > > Unfortunately, traceroute is not always installed by default - GO DO THAT > NOW!!! ;-) Since when you need it, you won’t be able to get it! > > > > *From:* PLUG-discuss [mailto:plug-discuss-bounces@lists.phxlinux.org] *On > Behalf Of *Michael Butash > *Sent:* Tuesday, January 03, 2017 12:34 PM > *To:* Main PLUG discussion list > *Subject:* Re: Offline > > > > Just work your way up the network osi model in troubleshooting. Everyone > should learn some networking these days, one way or another (speaking as a > bofh network guy that deals with non-networking app and developers folk > commonly - don't be part of the problem). > > > #### > > ## Layer 1/2, got link? note "state" > > > > > ip link > > > > ## If no link, check cable plugged in for blinky lights > > > #### > > ## Layer 3, got ip? > > > > > ip addr > > > > ## If no ip, check dhcp on the network > > ## Optional: Set static ip for temporary troubleshooting, insert proper > subnets here: > > > > ip addr add 192.168.1.100 255.255.255.0 dev eth0 > > ip route add default 192.168.1.1 > > > #### > > ## Layer 3, verify arp to gateway > > > > ip nei | grep `ip route | grep default | awk '{ print $3 }'` > > > > ## If no arp for gateway, check router/switch network > > > #### > > ## Layer 3, ping the gateway (whatever that is for you) > > > > ping `ip route | grep default | awk '{ print $3 }'` > > > > ## If no response, check prior steps again > > > #### > > ## Layer 3/4, verify resolv.conf dns resolution and life beyond default > route > > > > ping google.com > > > > ## If no dns life outside router, check the router has connectivity to the > internet > > > > #### > > ## pull up a browser to google.com to test layer 4-7 stuff > > > > On Tue, Jan 3, 2017 at 9:10 AM, Carruth, Rusty > wrote: > > I’ll guess that DHCP server on your router was dead. > > > > But to know for sure - are all your systems using DHCP, or are some using > static? > > > > IF your windows side is set for static, and the Linux side is DHCP, then > this would be expected - windows works, linux doesn’t. > > > > But I’m just guessing (however, I had a router once that would lose its > DHCP server on a semi-regular basis. I considered putting it on some sort > of auto-reboot device (power cycle it once a day) - finally just replaced > the stupid thing ;-) > > > > Rusty > > > > *From:* PLUG-discuss [mailto:plug-discuss-bounces@lists.phxlinux.org] *On > Behalf Of *Michael > *Sent:* Monday, January 02, 2017 1:42 PM > *To:* PLUG > *Subject:* Re: Offline > > > > I'm back. I just had to reset the router..... but why would that work if > windows still worked? > > > > On Mon, Jan 2, 2017 at 11:31 AM, Michael wrote: > > The TV server, also linux, is still online. It is part of the same network. > > > > On Jan 2, 2017 11:22 AM, "Michael" wrote: > > I am now offline in my Linux box. Windows is up and happy and the modem is > up and happy too. Heck, the network connection shows I'm connected too. I > don't know what to do. What led up to this is I was trying something with > th faulty SD card. .. grated said to run, chkdsk /f , twice so I boot into > Windows to do that ,couldn't do it though. Then when I boot back to Linux > to reformat it there was no connectivity. > > > > > > -- > > :-)~MIKE~(-: > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org > To subscribe, unsubscribe, or to change your mail settings: > http://lists.phxlinux.org/mailman/listinfo/plug-discuss > > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org > To subscribe, unsubscribe, or to change your mail settings: > http://lists.phxlinux.org/mailman/listinfo/plug-discuss >