Hi,Please ensure that you are using anonymous authenticaltion and fastcgi.impersonate is set to 1 in your php.ini file. When fastcgi.impersonate is set to 1, PHP impersonates the security token of the calling process.You can use Process Monitor to see which identity is being used to access the folder and getting access denied.
This will help narrowing down the identity which you will like to give permission.You can also read the section 'Set Up Storage Directory' in the Gallery2 installation guide at. This is exactly what you will like to do.Thanks,Don.
.Evolution of IIS:Going back to history of web servers the first Microsoft web server was a research program at EMWAC (European Microsoft Windows NT Academic Center) dated may 30 1995.It was developed by using C, C and assembly level language. Versions of IIS were released either or alongside with a version of Microsoft windows starting with IIS 1.0,which got a stable release on 29th July 2015 with IIS 10. Versions from IIS 6 and onwards serves best in terms of business needs as security, support, process models and reliability increased. Higher versions supports and provides several improvements relating to performance and in large scale scenarios. IIS 8.0 provides several configurations to optimize non uniform access memory to run several process under one application pool. Application Pool: What is application pool?Application pool is grouping of URL’s that are routed to one or more worker process.
An application pool contains one or more than one web application in IIS. It is also possible to create more than one app pool. Application pool allows to isolate application from one another running from a same server. It helps in if an error occurs, it won’t take down other applications in the pool as process boundaries separate each work process. It also helps in separating applications which requires different levels of security.How it application pool works?For a specific application pool an IIS worker process runs otherwise known as windows process (w3wp.exe). The web application and is responsible for handling request sent to web server from a specific web app or end user.
Because application pools define a set of web applications that share one or more worker process, they provide a convenient way to administer a set of web sites and applications and there corresponding worker process. All applications runs on worker process so if any worker process dies or recycled all web apps are going to be effected so application pool helps in not effecting other worker processes or applications. The applications are executed by worker process using window identity, and the window identity is dependent on application pool identity. Application Domain: What is an application domain?It is a virtual process which isolates applications from each other. Each application domain has its own virtual address and scope. Each application runs within its main process boundaries and its application domain boundaries.
Application domains are typically created by runtime host which are responsible for bootstrapping and common runtime before an application is run. Application domains provide a more secure n versatile unit of processing that the common language run time can use to provide isolation between applications. We can run several application domains in a single process with same level of isolations that separate different process. And running multiple applications within a single process increases the scalability. Isolating is important as it helps in building application security. Web Farm, Web Garden, Network Load Balancing: Web Farm:When we use multiple servers to host the application with a huge number of incoming traffic, to divide the traffic among them is known as web farm. Web farming is basically hosting single website on multiple web servers over load balancers.
Where load balancers balances the request according to server strength, basically server with less requests in the queue will be next to accept the request as to balance the load among the servers. A single application is hosted on multiple IIS server, and those are connected with the virtual IP with load balancer load balancer which is exposed to external world. Web servers may share same DB server or maybe they can use replicated server in back end. Advantages of web farm1-It provides high availability as load balancer balances by redirecting requests if any server goes down2-It provides high-performance response for client request. Provides better scalability and reduce failure of application.3-sessions and other resources can be stored in centralized location to access all servers. Web Garden:An application which contains multiple worker process is known as web garden.
Provides better application availability by sharing request between multiple work processes. Web garden uses processor affinity where application can be swapped based on preference and tag setting. Web garden consumes less physical space to configure. For web garden we have to configure the out process within same server but for different worker process.
Network Load Balancing:It is a device which distributes network or application traffic and load across a cluster of servers. Load balancing improves responsiveness and availability of applications. Load balancing aims in optimizing resource, maximize throughput, maximize response time and avoid overload of a single resource. Usually load balancing involves dedicated software or hardwires.
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A load balancer sits between the client and server farm accepting incoming network and application traffic and distributing the traffic among multiple servers and by avoiding being a single point of failure. Load balancing is most straight forward method of scaling out a web server infrastructure. Different types of methods and algorithms are used for load balancing notable are:1- The least connect method-this is default method when a virtual server is configured to use the least connection it selects service within the fewest active connection.2- The round robin method-this method continuously rotates a list of services that are attached to it.