I want to make a status report of when my FTP server is on and when its off. HTML is the language which I prefer to use. I have never used HTML before, and I need it due to a large request of when my ftp server is off and when its on.
If I were doing this, I would write an ASPNET page (or PHP, or etc) that simply connects and authenticates to the FTP server. If this succeeds, the server is online. The ASPX logic would then generate an HTML page indicating the results.
In the simple case you connect to the FTP server with each request for the page. It should cache the result though, and only check every minute, or five minutes, or some longer interval, regardless of how often a request for the status is made.
May i suggest instead of writing your own, you just install server monitoring tools on your server instead? It might be an easier choice that writing your own.
Google search
HTML is a static markup language. You might want need to use a server-side script like PHP or Perl to query for the FTP server status.
Related
I'm learning to code and encounter a problem with making a form using HTML.
In the book, it stated that "every <form> element requires an action attribute and its value is the URL for the page on the server that will receive the information in the form when it is submitted."
But I thought about it for a long time, and I couldn't figure it out. What is meant by "the URL for the page on the server". If I got a site uploaded to a web hosting company, I would need to get it there? Or I need to rent a server elsewhere so that I will get one? Or it just fine to be store on a local file? Because I saw the data need to be processed by PHP, although I don't know whats that.
Can anyone help me with this? Really appreciated.
Regards,
Ace
An HTTP(S) URL will include a hostname (which identifies a computer (acting as a server) on a network) and a path (and possibly some other components which don't matter for this question).
When you type a URL into the address bar of a browser, the browser will make a request to the server and ask for whatever is at the path.
The server will respond (typically with some data like an HTML document).
The server has to perform some logic to decide what to respond with. Typically this will either be:
Reading a file from its hard disk and returning the contents or
Executing a program and generating some content programmatically
When you submit a form, you are making a request to a URL with some data attached to it. Almost all of the time you will want the server to execute a program and do something with that data (such as put it in a database).
The program that gets executed can be written in any programming language you like (such as Perl, PHP, JavaScript, Java, or whatever).
If I got a site uploaded to a web hosting company, I would need to get it there?
Typically, if you have web hosting already then you will use that web hosting for any server-side programming you need to do.
If the hosting service doesn't provide you with any server-side hosting options (i.e. if it is just static hosting such as you might find from Github Pages). Then that isn't an option. Likewise if the server-side options they program aren't suitable for you (e.g. they only support PHP but you want to run something written in Node.js) then you'll have to find an alternative.
The two alternatives you have are:
Move everything to hosting that provides the features you want
Host something elsewhere and keep the majority of your site in the original hosting
(There is nothing wrong with the latter option, I have one site which uses Amazon S3 static hosting for most of it but has a couple of web services running in Heroku).
Or I need to rent a server elsewhere so that I will get one?
Dedicated hosting is almost certainly very expensive overkill for your purposes.
Or it just fine to be store on a local file?
It isn't possible to do server-side programming with a file: scheme URL. There's no server to execute the program.
If you are only working locally then you can install a web server on your computer. This is normal for development purposes.
It is probably worth mentioning that there are a few common server-side programs which are available prewritten with hosting services (e.g. contact forms which email you when someone fills them in). These typically come with advertising and require that the <form> and its contents are constructed with the specific fields the service expects. If you look for one of these be careful to follow their instructions precisely.
Aside: The statement that the action attribute is required is flat out wrong. It is an optional attribute and in its absence the form will be submitted to the URL of the current page.
HTML is a front-end tool that allows you to take inputs using a form from the user. once the user clicks the submit button a post request is sent to the back-end tool (PHP in this casse; PHP is a back-end programming language). the back-end tool handles the information given and deals with it to your liking. the action attribute is basically telling the front-end (HTML) where to give the information to the back-end(PHP) which is in the form of a URL.
i highly suggest trying out this example on W3schools :
https://www.w3schools.com/tags/att_form_action.asp
I see you want to send your HTML form data to a PHP script. You can use WAMP server or XAMP server to do this locally. You should use the PHP script file path as the input for the .
For instance,
Home.html
<HTML>
....
<form action="process.php">
...
</form>
</HTML>
So, when you submit the form , the form data is passed onto the PHP file which you can access using a $_[SUBMIT] super global array in your PHP script.
Check github for projects on HTML,JAVASCRIPT,PHP.
Here's one to start: https://github.com/kristej/Uniform-Database-Management.git
If you are sending the data to an online server, you need to own it to process it. Hence try it out locally first.
With the rise of home office I have to went and do all class of stuff via a web interface inside a database, the problem is that the developer did not add a field or page to formulate a custom sql query.
I understand that the php query parser its on files located in the server side (process.php and all that) so these cant be modified (and I dont intent to do that). The idea is to view/know how many fields are inside a certain database, since the work requires the existence of 2 specific fields that via the web interface does not seem to appear, and to know if these fields exists or not, so the data can be inserted in an accord format (and to request to the developer add it).
I have the legit access to the server, so how can the sql query be piped directly to the server outside the web interface?, or, since Im a valid user, a terminal session can be launched to check the structure?
The developer team is not responding, and left us with some issues,but this is the most needed.
Web server: Apache (dont know the version but guessing its from the
last 2.4.4x branches)
Server: Some flavor of linux.
SQL :Postgresql 11.x/12.x (but not sure, it can be mysql)
Thanks.
Is it possible to build a realtime app using AngularJs with a mysql database?
I've been reading thousands of tutorials, but they are all focused on express, nodejs, etc.. didn't found any documentation on wheter it's possible or not. I tried to take a look at the socket.io docs, but still didn't found anything relevant to this question.
I didn't tried anything yet because of this. I use a webApp based on AngularJs on a apache server (local).
Where should i start to be able to build a real time app using these tools i have?
Do i really need to use a node/express server?
What are the main consideration i need to do before taking this step?
Is there any documentation i should read?
I need to do this real time because it involves product orders, call center, ticket system, etc.. So everytime there is a new ticket is opened/changed, new order arrives, etc.. I need to make the user aware of this, without the need to refresh the page.
Or if someone could give me a further explanation of this concept and how to get started, it will be great.
You can run angular on top of any backend, although most examples push towards REST. If you want your app to feel like a real time application, using WebSockets is a likely improvement.
WebSockets play nice with Angular, look at https://github.com/wilk/ng-websocket for example. A back-end in Node will work, but many other backend techs will do equally well.
Here is a decent tutorial using MySQL, NodeJS, and Angular: https://codeforgeek.com/2015/03/real-time-app-socket-io/
I recommend that you keep using a webserver like Apache (my personal preference is Nginx). You can proxy API and socket requests to Node, and serve static resources for the app from a folder.
Check out https://httpd.apache.org/docs/2.4/mod/mod_proxy_wstunnel.html if you stay with Apache. Check out http://nginx.org/en/docs/http/websocket.html is you go for nginx.
Without a webserver, you'll have to either:
serve your static resources with Node (polluting your server project with client code), or
work with different ports, risking the app becomes unusable in client environments, or
work with different domains, giving you a CORS head-ache.
Although I don't have much experience with Node, MySQL with Node.js should help you out a bit.
You'll want to move away from Apache if you want to do websocket stuff with Socket.io
Yes, it is possible to create a software with AngularJS in the front end and any other server side language that speaks to MySQL. Few months back I worked on a software with Java Spring Framework in the backend with MySQL database and AngularJS with bootstrap in the front end. You could start by following the MVC pattern, where your views can be served as AngularJS and your Controller can be in any server side code, with MySQL database.
Some of our ColdFusion sites are having the words "coupon" inserted into their footer with a link to another site. Is there anything I can do to prevent this? Is there any software I can run to help detect any vulnerabilities? It doesn't seem to be SQL injection as the databases seem fine and nothing unusual is showing up in the logs.
There are several variations of attacks that produce this sort of result (appending a link to some malicious or nefarious site). For example, this one (Script Injection) uses the latency between a file upload and checking to insert executable code on your server.
Other attack vectors include FTP (which is why you should not use it), or other file transfer protocols. In your case the infected machine may not be the server. It could be a client machine with access to the server - a developer who has set up FTP to the server for example.
Let me know if you need formal help - we have a good track record fixing this sort of thing. If you get more clues post them and I'll try to help. I will warn you that if this is a server infectionit is at the root level and is so pervasive your only option is to start with a pristine install and reinstall your code. Bad news I know - sorry :(
We had something similar happen when one of our servers was hit by the hack Charlie Arehart describes here:
http://www.carehart.org/blog/client/index.cfm/2013/1/2/serious_security_threat
Have you had these patches?
Another option that I would recommend is searching your site(s) for any use of the <cffile> tag that isn't expected. I had a customer that somehow got a single file that was a backdoor to their site. It was particularly dangerous because it could upload files to any location on the server as well as execute any SQL command against any datasource on the server. In other words, this single file opened the door to all of the sites and databases that were running on that server.
This backdoor file (which was named vision.cfm) was often used to update footers with links to coupon and spam sites. vision.cfm was only 210 lines of code.
The entire server had to be sanitized after this was discovered.
C# 2008
I have developed an application that need to connect to a web server in order to work. If the web server goes offline. The the app will have to be notified so that the user using the app can know what happened.
This application will be downloaded from the internet from our clients web site. So hundreds or thousands of users could have it.
I was thinking about pinging the web server maybe every 5 seconds. However, with 100's or 1000's apps would overload the web server.
Someone has told me about ESB would be right for this problem. The way I am thinking to use this, and I am not totally sure. Is to have every app to subscribe to the ESB. If the web server goes offline it will send a message to all the apps.
However, I understand that ESB is very big and complex and maybe this is overkill for my problem.
Am I understanding correctly.
If ESB is not the correct choice is there another design pattern I could use?
Many thanks
It sounds inappropriately out of scope to spec an ESB for this simple purpose. Why not just have the client machines figure it out as they periodically need to access the website? Instead of pinging the web server over and over, in the course of their normal activities they will need to access the web server for any normal reason, if they get an error response they can branch down the "web server is down" code path.
An ESB sounds like the wrong solution.
Two possibilities come to mind:
(1) If the user doesn't need to know they're offline in real-time, defer detection to usual error handling when you try and access the server.
(2) If you must know real time, use a small proxy at each client site so that only the proxies need to ping your server, not every desktop.