Offline

[Michael Butash]

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 <Rusty.Carruth at smartm.com>
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 at 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 <bmike1 at gmail.com> wrote:
>
> The TV server, also linux, is still online. It is part of the same network.
>
>
>
> On Jan 2, 2017 11:22 AM, "Michael" <bmike1 at gmail.com> 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~(-:
>
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