[AusNOG] Telstra mobile down "nationwide"

Joe Saxton Joe.Saxton at workforce.com.au
Tue Feb 9 17:18:21 EST 2016


It no doubt this would have been human error. With all the redundant systems in place, you just wonder an outage like this and this long more likely human error.

From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Cameron Murray
Sent: Tuesday, 9 February 2016 4:45 PM
To: James Gray <james at gray.net.au>
Cc: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] Telstra mobile down "nationwide"

http://www.9news.com.au/technology/2016/02/09/13/11/reports-of-telstra-mobile-services-outage

Keep backing up the bus...

On Tue, Feb 9, 2016 at 2:54 PM, James Gray <james at gray.net.au<mailto:james at gray.net.au>> wrote:
In addition to the traditional swiss-army knife known as "telnet", getting "curl" to dump just the HTTP headers is also a handy one to keep up your sleeve:
0:>curl -I http://triplezero.com.au
HTTP/1.1 200 OK
Connection: close
Date: Tue, 09 Feb 2016 04:45:18 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET<http://ASP.NET>
Content-Type: text/html; charset=UTF-8

Also telnet wont work with SSL sites (ie, https), but if you have openssl installed, you can do this instead:
0:>openssl s_client -quiet -connect www.google.com:443<http://www.google.com:443>

The openssl method also works on other SSL-enabled service like POP3S and IMAPS etc. I have it aliased in my shell config:
alias stelnet="openssl s_client -quiet -connect"

...then all I need to do is: "stelnet host:port"

Just good to have tucked away in case you need to break out the command-line hammer.

Cheers,

James

On 9 February 2016 at 15:15, Ross Wheeler <ausnog at rossw.net<mailto:ausnog at rossw.net>> wrote:


On Tue, 9 Feb 2016, Shane Chrisp wrote:
Yep, that was just my fat fingers. I am trying to get to the triplezero.com.au<http://triplezero.com.au> but no go.

traceroute to www.triplezero.gov.au<http://www.triplezero.gov.au> (115.178.104.72), 30 hops max, 60 byte
...
11  bundle-ether2.civ.core2.canberra.telstra.net<http://bundle-ether2.civ.core2.canberra.telstra.net> (203.50.6.82)  71.834 ms 71.845 ms  70.450 ms
12  Bundle-Ethernet1.civ-edge901.canberra.telstra.net<http://Bundle-Ethernet1.civ-edge901.canberra.telstra.net> (203.50.8.35) 69.126 ms 69.138 ms  69.042 ms
13  telstr1248.lnk.telstra.net<http://telstr1248.lnk.telstra.net> (165.228.21.206)  68.991 ms  68.981 ms 68.926 ms
14  * * *
15  * * *
16  * * *


Traceroute is only one tool in a toolbox, and frequently not as helpful as you might hope.

 5  bundle-ether2.chw-edge902.sydney.telstra.net<http://bundle-ether2.chw-edge902.sydney.telstra.net> (203.50.11.105)  2.002 ms
 6  bundle-ether2.dkn-core1.canberra.telstra.net<http://bundle-ether2.dkn-core1.canberra.telstra.net> (203.50.6.129)  8.918 ms
 7  bundle-ether2.civ.core2.canberra.telstra.net<http://bundle-ether2.civ.core2.canberra.telstra.net> (203.50.6.82)  9.334 ms
 8  Bundle-Ethernet1.civ-edge901.canberra.telstra.net<http://Bundle-Ethernet1.civ-edge901.canberra.telstra.net> (203.50.8.35)  7.822 ms
 9  telstr1248.lnk.telstra.net<http://telstr1248.lnk.telstra.net> (165.228.21.206)  9.189 ms
10  *
11  *

Yes, it appear to not be reachable....

However using another tool  it clearly IS working....

# telnet triplezero.gov.au<http://triplezero.gov.au> 80
Trying 2403:d500::48...
telnet: connect to address 2403:d500::48: No route to host
Trying 115.178.104.72...
Connected to triplezero.gov.au<http://triplezero.gov.au>.
Escape character is '^]'.
GET / http/1.0

HTTP/1.1 403 Forbidden
Cache-Control: no-cache



There's also a hint there....

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