I want to extract current configuration from existing IIS Server and transfer it to another Server to configure IIS. If need be I may upsize some memory related parameters. What is the best way to get this done? Should I look up Metabase.xml parameters and write an Mgmt API wrapper to extract the values for each of these parameters? OR Is there a broader set of parameters that I should look up to extract the values?
I think you can use Web Farm for that,
it allows you to manage the IIS of multiple servers (and more than that).
You can read about it here:
http://www.iis.net/downloads/microsoft/web-farm-framework
Related
I want to create and host 4-5 websites using the same database. The only difference between the sites will be:
branding (colours and header)
data will be filtered per website (through sql query) and
Each site will be on a separate domain (but can be hosted on same server)
My 1st thought was to use API / Rest model and provision five front-ends in their own sub-domain. But as sites can be hosted on same server (I'm assuming one hosting account which enables multiple sub-domains), I think I can simply connect all sites with connection string to same database, avoiding complexities of using REST.
Is this possible and would i run into database conflicts doing this?
If later, I wanted to add a mobile app client, then will I need to build out a rest interface anyway?
Thanks
The right thing to do here depends a lot on your specific use case, expected load, preferred backend/edge technology, future plans, etc.
Site domains and servers -
The main point here is that you can host your domains/subdomains on the same or different servers. You simply need to update the DNS to point to the correct IP (update the subdomain's A record).
Note: If these sites are all public-facing, then I highly recommend using an edge/proxy server and even consider a load balancer, depending on expected number of visitors (Nginx, or Apache Web Server)
Decoupled architecture is almost always preferred -
I would definitely have an API/REST layer to abstract the database from the sites. This ensures that you establish a contract through which any clients can interact with the backend, including your mobile application. You also don't have to duplicate DB-specific code across the various clients. What if you decided to change your schema? Or even your database solution? Then all clients will be broken and your customers would be unhappy. As a guiding principle, think: if I change any one thing in my architecture, how many other things will need to change as a result? In terms of scalability, this architecture will also allow you to easily spin up more instances of whatever it is you need (databases, REST service, etc) should the need arise.
How do I build and deploy a REST API?Re: #2, to set up a simple custom REST service running on Node.js (and express), this is a good tutorial. The example also walks through setting up and integrating with an in-memory MongoDB database.
Database collisions?If you follow the above steps, this should be a moot point. Node.js/express and the databases expose ways to configure connection pools if the defaults do not suffice. Again, this will depend on your needs - how many concurrent users you expect.
I have developed a web application in node.js express framework. I have different systems that are used for various purposes.
When I call REST endpoints it should communicate with those systems and collect data. I want to know how can make my web application communicate to this system over a text file.
Not sure why do you need to use a text file, but if I understand correctly, what you need is basically something like Redis or Kafka. It would allow you to create kind of a "central" process where you can save/read information.
https://redis.io/
https://kafka.apache.org/
There're more options out there, just start with these ones and try to figure out if it's exactly what you need.
We have some soap based web services using java to wsdl approach in our organization. There is a security requirement to now fix limits on the request parameters being passed to service methods. Currently we have the maxoccurs attribute for a parameter to be unbounded in wsdl because we have the parameter as a collection in java.
To resolve this it looks like we need to make some changes in java source to regenerate the WSDL's which are compliant to this requirement. I know there are some unofficial api's available which can be used as replacement to jaxb providing annotations which can be added in java source. This may result in WSDL generated having maxoccurs to a fixed configured value. But, there are some issues in using these third party solutions due to licensing and other issues. Also, we need to enable schema validation for the WSDL.
I would like to know if there is a solution to have this check done outside the scope of either the WSDL or java source to be compliant with this requirement. What I am looking at is a configurable solution without touching wsdl's or java source. We are using IBM Datapower in our organization. Want to have if we can have a policy or something configured using datapower that will intercept the web service request parameters and throw fault if the maxoccurs for any of the web service method parameters is above a configured value.
Has anyone used datapower for a use case like this. Or is there a better way of achieving it.
I believe you can limit the maximum length of messages. This will actually be better than a WSDL limit for preventing DDOS as it will happen in the network layer.
I have a Java web app running on EC2 under Tomcat (a WAR) that requires various sensitive configuration parameters - for example, the credentials associated with various other AWS services. I had been setting these as environment variables, but then discovered that running Tomcat as a service removes almost all environment variables. So currently I use a simple configuration file to store these values.
I don't believe this is a wise choice going forward, however, and would like to find an alternative. What is the right way to handle this kind of sensitive information?
IAM Roles are going to be your best friend here. The official docs here will point you in the right direction. There's also a post on the AWS security blog about it here.
If i want to setup a DNS server on Linux by using webservice(SOAP) as datasource to resolve the name. Is it possible?
By the way, I find some API to code it myself with Java but I will use it for the last choice.
Thanks in advance
Wittaya
Assuming I understood the question, and you want to provision a dns server from a SOAP service. You can, for example by generating zone files. Or you could use something like PowerDNS's pipe backend to do it on the fly, but that would probably be slower and flakier than generating the configuration in one pass.
If you are asking whether or not it is possible to use Java to resolve names into IP addresses, the answer is yes. See InetAddress.getAllByName(String) for more information. You could create a SOAP interface based around invoking that method on an input argument.