I've heard that the automotive industry has something called MISRA C. What are the relevant standards for other high reliability/availability/security industries, such as Space Aircraft Banking/financial Automotive Medical Defense/Military ??? ...
I need to ensure that any number of websites and services haven't bitten the dust. At the moment I rely on a simple 5 minute cronjob which which uses curl and a file of urls to check that all the responses are correct (200 or rarely 301). It all works on a basic level, I'm interested in more sophisticated open-source tools (statistics, ...
Hi, I am looking for a piece of software that I can schedule to check that our web apps are up and running. I've used HP open view years ago, but remember it being quite expensive, I'm looking for something open source or cheap. So it would login in and do some simple actions maybe submit form and check for some text on screen that m...
Hi all, A service I have in WCF occasionally goes down due a problem with a COM component. While I am troubleshooting I would like to setup another host to make regular calls to this service to monitor availability. It is slightly more complicated that a simple HTTP call though as the service is secured by SSL and WCF authentication (u...
I manage a number of web applications and am being asked to generate statistics around their availability based on length and time of day of any downtime. Does anyone know of any tools and/or services which are available to facilitate this? The applications are all java servlet applications with an oracle database on the back end. Acces...
I don't want to tell the hard way that the internet is unavailable when I catch an exception from url.openStream(). Is there a simple way to tell if the computer is connected to the internet in Java? In this scenario, "connected to the internet" means being able to download data from a specific url. If I try to download from it and i...
We have a freezer plugged into a GFCI electrical outlet that likes to "pop" and turn off on its own every once in a great while. What I would like to do is monitor the availability of this electrical outlet. Ideally, I'd like to plug in a cheap monitoring device, like a Smarthome or X10 type of device. And when the circuit turns off, ...
I want to test whether wcf endpoint is reachable or not. Only available data is URI address to the service. Can I connect to service to check whether it exist without creating the Client Proxy of service? I want to do programmatically bool EndpointReachable(UriAddress) Also service can be net tcp ...
I am in the process of answering a request for tender on a contract that requires a decent amount of text processing. The main trouble is that the customer wants to be able to run this on any UNIX (HPUX, Solaris, AIX, FreeBSD) or Linux (SLES, RHEL) platform, which may constrain what I use to do it. They don't want to make the installatio...
I'm looking for a way to check SQL Server availability like this MySQL solution, unless there is a better method. My plan is to check if the SQL Server instance is up/down, and if it is down then display a message to the user, all via a try/catch. ...
I am looking for a domain search tool that checks domain availability and integrate such tool with my website, how is this done programmatically? ...
Is there any way to find out particular datatype [say for example chkpass] is available or not through a query ? ...
Hi there, I want to implement a "smartODBCLogin". I know how to get a list of all engineNames and drivers from all ODBC data sources out of the registry. Now I want to know, which of these sources are available (active). (To open a new odbcConnection wouldn't work/help, would take to much time.) Does anybody know how to implement this...
How often do you solve your problems by restarting a computer, router, program, browser? Or even by reinstalling the operating system or software component? This seems to be a common pattern when there is a suspect that software component does not keep its state in the right way, then you just get the initial state by restarting the com...
Hi All, This may not be at all possible but I thought I'd get your responses before we gave up the Idea. We have 3 main projects all in one Solution: Interface, Logic, and Data Access. The Data Access Project contains all the Object Classes with their variables and methods. The Logic Project contains classes that hold logic methods and...
We have an Adobe Air app that downloads a large amount of images into application storage. I've scanned the docs and found no sign of this, but I thought I'd double check: anyone know if it's possible to see how much available storage space the user has on their HD so we can warn them they don't have enough room? ...
I have a bunch of SQL servers which I periodically performs maintainance on (Windows Update patches etc.). Now I want to the database online 24/7 and need to implement one of the high-availability solutions for SQL server. The solutions needs to be cheap and simple to use. I have no problems tweaking the connection strings for the clien...
I am working to integrate data from an external web service in the client side of my appliction. Someone asked me to test the condition when the service is unavailable or down. Anyone have any tips on how to block this site temporarily while we run the test to see how the service degrades? For those curious we are testing against Virtu...
Hi, I know that I am not the first to ask the question: How do I find out if my application is online or not? I found this post: StackOverflow. I want to do it with C# and .NET 3.5. The recommendation is to ping the resource regularly. I am not very happy with that advice. I would rather detect a network change and THEN ping my service...
I'm trying to write a tool to check if a proxy server is up and available for use. So far, I've come up with two methods in the class below (I've removed setters and getters that are superfluous to this question). The first method uses cURL and tries to request a page via the proxy, the second tool uses fsockopen and just tries to open...