Re: What Platform does GMAIL works
- From: "Juan T. Llibre" <nomailreplies@xxxxxxxxxxx>
- Date: Thu, 20 Oct 2005 06:15:27 -0400
re:
> I personally can't think any server OS engineers with their right mind,
> will think it's good to invent an mechanism for outsiders to know a
> server's uptime and make it avaliable by default.
What you "personally think" and reality are not connected.
See : http://uptime.netcraft.com/up/accuracy.html
What is 'Uptime' ?
-------------------
The 'uptime' as presented in these reports is the "time since last reboot"
of the front end computer or computers that are hosting a site.
We can detect this by looking at the data that we record when we sample a site.
We can detect how long the responding computer(s) hosting a web site has been
running, and by recording these samples over a long period of time we can plot
graphs that show this as a line.
-------------------
Not all OS's provide uptime information.
Read the section titled:
"Which operating systems provide uptime information ?"
for an explanation.
See MS's uptime report :
http://uptime.netcraft.com/up/graph?site=www.microsoft.com
Juan T. Llibre, ASP.NET MVP
ASP.NET FAQ : http://asp.net.do/faq/
Foros de ASP.NET en Español : http://asp.net.do/foros/
======================================
"Lau Lei Cheong" <leu_lc@xxxxxxxxxxxx> wrote in message
news:eYiveDT1FHA.2616@xxxxxxxxxxxxxxxxxxxxxxx
>I don't think so.
>
> That is a "Hosting history". So any status change to host information(IP is one of them)
> qualify as a change, and if it's correct, a new "Last changed" entry doesn't necessary
> mean a reboot of course.
>
> See my previous post for other reason - I don't think there's any noticable indicator
> avaliable to a server to mark it as recently rebooted other than find out it's down for
> a while and up again. It's not a necessary networking functionality and is an
> undesirable indicator to be released to the outsiders. I personally can't think any
> server OS engineers with their right mind, will think it's good to invent an mechanism
> for outsiders to know a server's uptime and make it avaliable by default.
> "Juan T. Llibre" <nomailreplies@xxxxxxxxxxx>
> ¼¶¼g©ó¶l¥ó·s»D:edYebGS1FHA.3256@xxxxxxxxxxxxxxxxxxxxxxx
>> re:
>>> Well, where do you see it reboots 10 times in less than one month?
>>
>> See the "Last changed" column.
>> That usually reflects an OS change...which implies a reboot.
>>
>>
>>
>> Juan T. Llibre, ASP.NET MVP
>> ASP.NET FAQ : http://asp.net.do/faq/
>> Foros de ASP.NET en Español : http://asp.net.do/foros/
>> ======================================
>> "Lau Lei Cheong" <leu_lc@xxxxxxxxxxxx> wrote in message
>> news:enftgWR1FHA.3256@xxxxxxxxxxxxxxxxxxxxxxx
>>> Well, where do you see it reboots 10 times in less than one month?
>>>
>>> I just see "Last reboot: unknown".
>>>
>>> If you're saying the "hosting history", you can see the IP address alternates,
>>> suggesting that it only suggest when it's IP address changes. :)
>>>
>>> Actually, unless with active monitoring, I can't see there're some way to record
>>> whether a server has been rebooted, and there're tools like "kexec" that allow a
>>> reboot in Linux complete in a short time. (My Linux server, which runs MySQL and
>>> Apache, reboots with downtime within 2 minute)
>>
>>> "Juan T. Llibre" <nomailreplies@xxxxxxxxxxx>
>>> ¼¶¼g©ó¶l¥ó·s»D:%23P1UFjJ1FHA.3256@xxxxxxxxxxxxxxxxxxxxxxx
>>>> Hello, Altaf.
>>>>
>>>> When I fill out the "What's that site running" textbox with gmail.com,
>>>> on the upper left corner of the page, and Hit the Search button,
>>>> the following page is sent to me :
>>>>
>>>> http://toolbar.netcraft.com/site_report?url=http://gmail.com
>>>>
>>>> On that site report, you'll notice that they use Linux for their OS,
>>>> and GWS 2.1 for their web server.
>>>>
>>>> I also notice that they have had to reboot their web server,
>>>> which runs Linux, 10 times in less than one month.
>>>>
>>>> I though that Linuxers claimed that they didn't need to reboot
>>>> as often as they claim the Windows platform needs to.
>>>>
>>>> By contrast, checking www.microsoft.com yields the interesting fact
>>>> that it took almost 6 months for the Windows-based servers to need
>>>> to be rebooted 10 times.
>>>>
>>>> ;-)
>>>>
>>>>
>>>>
>>>> Juan T. Llibre, ASP.NET MVP
>>>> ASP.NET FAQ : http://asp.net.do/faq/
>>>> Foros de ASP.NET en Español : http://asp.net.do/foros/
>>>> ======================================
>>>> "S.M. Altaf [MVP]" <smaltaf@xxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>>>> news:eIXyVaJ1FHA.2788@xxxxxxxxxxxxxxxxxxxxxxx
>>>>> That link didn't give me much info, but I do believe that GMail uses an
>>>>> implementation of CGI and AJAX/XMLHTTP
>>>>>
>>>>> -Altaf [MVP]
>>>>> --------------------------------------------------------------------------------
>>>>> All that glitters has a high refractive index.
>>>>> www.mendhak.com
>>>>
>>>>
>>>>> "Juan T. Llibre" <nomailreplies@xxxxxxxxxxx> wrote in message
>>>>> news:eHrY$KJ1FHA.1028@xxxxxxxxxxxxxxxxxxxxxxx
>>>>>> You can find that out, not only for gmail.com,
>>>>>> but for any other web server, by going to Netcraft and querying:
>>>>>>
>>>>>> http://news.netcraft.com/
>>>>>>
>>>>>> Just fill in gmail.com in the textbox, and hit the Search button.
>>>>>>
>>>>>> The site report will tell you what OS and web platform the site uses.
>>>>>>
>>>>>>
>>>>>>
>>>>>> Juan T. Llibre, ASP.NET MVP
>>>>>> ASP.NET FAQ : http://asp.net.do/faq/
>>>>>> Foros de ASP.NET en Español : http://asp.net.do/foros/
>>>>>> ======================================
>>>>>> "thomson" <saintthomson@xxxxxxxxx> wrote in message
>>>>>> news:1129711733.800161.35880@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>>>>>>> Hi folks,
>>>>>>> Does any one have any idea which platform does GMAIL
>>>>>>> works, whether its JSP, ASPX or any other
>>>>>>>
>>>>>>> Regards
>>>>>>>
>>>>>>> thomson
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>
.
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- From: Lau Lei Cheong
- Re: What Platform does GMAIL works
- From: Juan T. Llibre
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