As title say i'm looking for something like Pulseway.
Basically i need to monitor 3.000 devices. And i was wondering if there is something where i can install an agent on this devices and monitor/command them securely via a web panel.
Thanks for your time
You can try to use Monitis Server/Device monitoring. They have agent for both Linux and Windows systems. We are using it for checking our internal servers performance. BTW you can install agent in one machine and monitor other devices with your internal network using internal uptime monitoring. On one agent you can setup as many monitor as you need. here is more details http://www.monitis.com/server-monitoring
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I have server A which runs under Windows (C#), I have server B which runs under Linux (Java). I need to setup a fast and reliable way of interaction between these two servers.
Requirements:
The size of data is small (many small messages of kbyte or something)
The rate is 1 message per second at least; good to have 1 per ms
The order should be preserved
Persistency not required
Delivery confirmation - yes
Some options out of my head:
Kafka / other messaging systems. The downsize is that I have to use a
middleware in a form of server.
Use Cloud queues from AWS or other cloud service. Can be costly?
Own messaging via TCP messages (very time consuming, I guess there
are open-source alternatives). No middleware.
Somehow via shared filesystem?
Setup Linux Server on Windows and.. what? Any special options if
applications are sharing same host?
I have a bunch of automated UI tests that currently require a physical monitor to run. Can I somehow create a virtual monitor in Windows 10 that functions like a real monitor to the OS? I want to run the UI tests in a remote cloud environment without screens.
I think I heard sometime that VR-development (Virtual Reality) have had similar problems in that VR also need a physical monitor attached (except the VR-headset) and that this was perhaps solved by Nvidia/Intel? with a fake monitor driver or similar? Or was it virtual desktops in VR? I can't find the source for any of this anymore...
The easiest way is to use the Spacedesk utility:
https://spacedesk.net/
Spacedesk server part is installed on your PC.
The client part (viewer) will also be required - any device on Android/Windows in same LAN segment.
Small hack:
You can also install Windows Client on Spacedesk server PC and manually assign client IP from another subnet. As a result, you will assume real Windows fake display )...
1.Total number of user login a GCP instance allow at a time?
2.How server resource get allocated among the jobs ran by concurrent user active any point of time?
3.Can we access google cloud server from any part of the world,how?If no,why?
For GCE instances, the limiting factor on concurrent connections is the OS. For Windows server, without Remote Desktop Services (and associated licenses), the limit is 2. On Linux machines, the limit is determined by the sshd_config file for MaxSessions and MaxStartups
Server resources are allocated based on the OS once again. For Linux, this can be by restricting on a per-user basis. As for Windows, there are different ways to enforce limits depending on the version you choose and how you deploy the server.
You can access the Google Cloud Platform and all the resources from almost anywhere in the world (with some exceptions) by access the external IP address of your instance, connecting to your Management console (console.cloud.google.com), or by running the Google Cloud SDK from your machine
With my limited resources and to aid debugging, I am doing local testing on a client-server (game) application by running both a server and one or more clients all on my Windows 7 dev PC. Both client and server are Java applications developed through Eclipse.
Is there any easy way to introduce lag given that everything is running on the same PC... maybe 'hack' the port used or something? Or is this only possible if each application is running on a separate PC (or separate VM)?
Make a feature in the server which makes a random lag within certain time range if detected connection comes from localhost. You can then switch this feature on/off as needed.
We have acquired a 4 channel GSM Gateway, model GoIPx4-G610 (the manual is titled "GoIP Series SIM Card for GSM Voice Gateway - GSM VOIP Gateway").
We are looking to develop a custom application to control the GOIP gateway. We have developed in the past custom applications that controlled simple GSM modems through AT commands for sending/receiving SMS messages in particular.
Although the gateway can be controlled through SIP we would like to control the GSM modems embedded in the gateway through AT commands if possible. This is because of the fine grained control AT commands offer and because we do not need VoIP features since we need only to send/receive SMS messages.
The gateway runs an unknown Linux instance to which we can connect through telnet. Unfortunately we do not have the credentials to authenticate to it. The gateway also has a web http administration interface to which we can authenticate but we can't find there settings/information related to channels that we can use for AT commands.
The documentation is very poor and the provider could not offer us any helpful information regarding this.
If anyone knows how we can send AT commands to the modems inside the gateway it is highly appreciated.
Up to now we have tried a brute force attack on the telnet interface to find the credentials with no success. We hope that once we can connect to the Linux instance driving the gateway we can connect from there to the modems through serial connections (to send AT commands) and we can reconfigure it to redirect the connections outside of the modem or to make an interface for sending commands to the modems.
The device has an update firmware option (through the web interface) which always gives the error "download failed". Downloaded the firmware (.pkg file) manually from their update pages and extracted the files from the embedded Linux distribution that should correspond to the ones placed on the gateway. The files were kept in the pkg file as an ROMFS compressed image which we mounted on a test station to see the files (probably the running OS on the gateway is an uClinux distribution).
Did this hoping that we can find there the /etc/passwd file which could be cracked with classic attack. However didn't found it and probably that file is placed on the gateway flash memory (contrary to the Linux files which are stored on the ROM memory). So if there is a way to erase / reset this flash memory that could be a solution (in case the gateway doesn't refuse to boot without those files). Another solution would be to be able to access the flash memory with the passwd file if there is such thing.
You might take the lid off and see what parts are inside.
If it's a general purpose processor with a published data sheet and without a lot of code security features, you might be in luck. For example, you might find:
By guessing headers or tracing from known pins, a console serial port, either logic level or RS232, hopefully with a shell listening
A boot mode pin for the micro connected to a resistor, which you could jumper to cause the micro to boot to a uart bootloader where you could download a new system image, or patch the existing one. If you are lucky the bootloader would be something known, like u-boot.
A JTAG port for the processor
A removable storage device which you could remove and alter
an SPI flash which you could carefully tap into and alter
A flash chip which you could desolder and transplant to a programmer
You could also make a GPL sources request for the kernel and whatever else from the vendor. Or even just trying to identify versions of things like a web server could help you look up any known exploits. Since it seems you have a similar system image to that which is installed, looking through it could be helpful - look for additional daemons running, listening on ports you weren't previously aware of, left over debug support, etc.
I am the developer of the GoIP you've purchased. Instead of trying to hack the GoIP, did you contact us to support your development of custom applications? Here are the updates of GoIP for you.
GoIP now supports SMPP. This could be an alternative to using AT commands to send and receive SMS.
API (Application Programming Interface) for GoIP is now available to support your custom application development.
If AT commands are still the preferred method, please contact us and I would be happy to discuss with you further.