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Posted to user@guacamole.apache.org by James Fraser <Ja...@veritec.com.au> on 2017/08/15 05:47:22 UTC
Identify if a machine is online
Hi All
Just wondering if there was a possible way for Guacamole to display if a machine is online/reachable from the Guacamole server.
E.g. a lot of our servers are test servers and reside within Azure subscriptions, due to the nature of Azure billing it is cost effective to power off these machines.
Some of the Dev's have requested the ability to view if the machine is online or offline without visiting the Azure Portal
Is this something that is on the horizon or has anyone attempted engineering this feature?
Cheers
James Fraser * Microsoft Systems Engineer
RE: Identify if a machine is online
Posted by James Fraser <Ja...@veritec.com.au>.
The machines are powered off automatically on a nightly basis, lots of these servers are just available for building applications or testing SQL or Websites etc.
The automation script used to power them off has the ability to power them on, the reason this is not done is because if a server is not going to be used then it should remain off to stop charges being incurred
These servers can be powered on by a developer (who doesn’t have admin access in guac, no shell access etc) via webhooks.
In most scenarios a server or group of servers (eg. DC, SQL, WEB) are all isolated to their own network with only HTTPS access available to the web server, the developers are accessing these servers via guacamole.
If we had machines running that were not utilised we would incur thousands of dollars in idle compute.
I was just curios if it was possible to make this visible, this Is a pretty niche scenario and probably not something that has even been requested in the past?
I have had some thoughts but have been to busy to play around with anything.
My potential thoughts were:
In the interface where it states – Number of connections a server has in use could potentially display OFFLINE if a ping request from the guacamole server was unable to talk to the endpoint, this then changes the SQL DB to display that message via a cron job.
Anyways thanks for the replies.
James Fraser • Microsoft Systems Engineer
From: Tomas Maggio [mailto:tomasmaggio@gmail.com]
Sent: Tuesday, 15 August 2017 6:51 PM
To: user@guacamole.incubator.apache.org
Subject: Re: Identify if a machine is online
Hi James,
Who/what powers off these servers?
I think you could script it to ping them and with that enable/disable them on the guacamole db? Is this what you are trying to achieve?
Cheers
On 15 Aug 2017 5:47 p.m., "James Fraser" <Ja...@veritec.com.au>> wrote:
Hi All
Just wondering if there was a possible way for Guacamole to display if a machine is online/reachable from the Guacamole server.
E.g. a lot of our servers are test servers and reside within Azure subscriptions, due to the nature of Azure billing it is cost effective to power off these machines.
Some of the Dev’s have requested the ability to view if the machine is online or offline without visiting the Azure Portal
Is this something that is on the horizon or has anyone attempted engineering this feature?
Cheers
James Fraser • Microsoft Systems Engineer
Re: Identify if a machine is online
Posted by Tomas Maggio <to...@gmail.com>.
Hi James,
Who/what powers off these servers?
I think you could script it to ping them and with that enable/disable them
on the guacamole db? Is this what you are trying to achieve?
Cheers
On 15 Aug 2017 5:47 p.m., "James Fraser" <Ja...@veritec.com.au>
wrote:
> Hi All
>
>
>
> Just wondering if there was a possible way for Guacamole to display if a
> machine is online/reachable from the Guacamole server.
>
>
>
> E.g. a lot of our servers are test servers and reside within Azure
> subscriptions, due to the nature of Azure billing it is cost effective to
> power off these machines.
>
>
>
> Some of the Dev’s have requested the ability to view if the machine is
> online or offline without visiting the Azure Portal
>
>
>
> Is this something that is on the horizon or has anyone attempted
> engineering this feature?
>
>
>
> Cheers
>
>
>
> *James Fraser • Microsoft Systems Engineer*
>
>
>
Re: Identify if a machine is online
Posted by Tomas Maggio <to...@gmail.com>.
That would be a terrible idea on a Windows machine.
The best would be to check for TCP/UDP 3389.
Cheers
Regards,
Tomas Maggio
+64 22 040 9517
On Wed, Aug 16, 2017 at 2:51 AM, Евгений Н. Жуков <eu...@gmail.com>
wrote:
> Ping is bad idea due possible firewalls or icmp routing issues. The best
> is a check for open vnc port
>
> вт, 15 авг. 2017 г. в 13:50, brian mullan <bm...@gmail.com>:
>
>> Why can't you just PING those machines? If the don't answer they aren't
>> online.
>>
>> On Aug 15, 2017 1:47 AM, "James Fraser" <Ja...@veritec.com.au>
>> wrote:
>>
>>> Hi All
>>>
>>>
>>>
>>> Just wondering if there was a possible way for Guacamole to display if a
>>> machine is online/reachable from the Guacamole server.
>>>
>>>
>>>
>>> E.g. a lot of our servers are test servers and reside within Azure
>>> subscriptions, due to the nature of Azure billing it is cost effective to
>>> power off these machines.
>>>
>>>
>>>
>>> Some of the Dev’s have requested the ability to view if the machine is
>>> online or offline without visiting the Azure Portal
>>>
>>>
>>>
>>> Is this something that is on the horizon or has anyone attempted
>>> engineering this feature?
>>>
>>>
>>>
>>> Cheers
>>>
>>>
>>>
>>> *James Fraser • Microsoft Systems Engineer*
>>>
>>>
>>>
>> --
> Евгений Н. Жуков
> +79534155676 <+7%20953%20415-56-76>, (83145)94800
> ICQ: 52108310 skype: xrt_nn
>
Re: Identify if a machine is online
Posted by "Евгений Н. Жуков" <eu...@gmail.com>.
Ping is bad idea due possible firewalls or icmp routing issues. The best is
a check for open vnc port
вт, 15 авг. 2017 г. в 13:50, brian mullan <bm...@gmail.com>:
> Why can't you just PING those machines? If the don't answer they aren't
> online.
>
> On Aug 15, 2017 1:47 AM, "James Fraser" <Ja...@veritec.com.au>
> wrote:
>
>> Hi All
>>
>>
>>
>> Just wondering if there was a possible way for Guacamole to display if a
>> machine is online/reachable from the Guacamole server.
>>
>>
>>
>> E.g. a lot of our servers are test servers and reside within Azure
>> subscriptions, due to the nature of Azure billing it is cost effective to
>> power off these machines.
>>
>>
>>
>> Some of the Dev’s have requested the ability to view if the machine is
>> online or offline without visiting the Azure Portal
>>
>>
>>
>> Is this something that is on the horizon or has anyone attempted
>> engineering this feature?
>>
>>
>>
>> Cheers
>>
>>
>>
>> *James Fraser • Microsoft Systems Engineer*
>>
>>
>>
> --
Евгений Н. Жуков
+79534155676, (83145)94800
ICQ: 52108310 skype: xrt_nn
Re: Identify if a machine is online
Posted by brian mullan <bm...@gmail.com>.
Why can't you just PING those machines? If the don't answer they aren't
online.
On Aug 15, 2017 1:47 AM, "James Fraser" <Ja...@veritec.com.au> wrote:
> Hi All
>
>
>
> Just wondering if there was a possible way for Guacamole to display if a
> machine is online/reachable from the Guacamole server.
>
>
>
> E.g. a lot of our servers are test servers and reside within Azure
> subscriptions, due to the nature of Azure billing it is cost effective to
> power off these machines.
>
>
>
> Some of the Dev’s have requested the ability to view if the machine is
> online or offline without visiting the Azure Portal
>
>
>
> Is this something that is on the horizon or has anyone attempted
> engineering this feature?
>
>
>
> Cheers
>
>
>
> *James Fraser • Microsoft Systems Engineer*
>
>
>