I'd like to disable all email from being sent on our dev server even if server and credentials are used in the cfmail tag. I'd like the messages to go into the spool as undeliverable so that we can read them.
This is on windows.
EDIT - why?
We currently have the mail server set as a dummy in the admin, but we specify a number of servers on various mail tags. Having been burnt once by a developer sending mail accidentally, we'd like to disable it entirely.
You could firewall against port 25 outgoing (make sure and excluded 127.0.0.1 as well if you are relaying locally). You would use iptables or Windows Firewall to stop outgoing port 25 connections. Your messages would be created by CF but the CF spooler, unable to deliver, would bounce them to the undeliverables folder.
Depending on how many cfmail tags you have, you might consider rewriting them to an abstraction of cfmail that you can then conditionally disable globally.
One example would be my own Mailer.cfc which allows for just that very use-case.
http://www.bryantwebconsulting.com/docs/com-sebtools/mailer-cfc.cfm
(see "Simulated Mailing")
Although I think Mailer.cfc would specifically address your problem, the broader point is that you can create an abstraction layer for functionality and then apply your own behaviors to it. This does entail some changes to code, but also provides a good deal of flexibility and control to your application.
Related
I would like to implement a queuing mechanism for sending out email via PHPMailer on Amazon EC2. I have set up Beanstalkd correctly on the server and can access it via a console. The mail doesn't seem to go through (trying the various combinations of sample code). In addition do I need to set up a cron job also that would call one of the producer or consumer files?
Does anyone have working code for sending out email via phpmailer/pheanstalk please for Amazon EC2?
Thanks.
Beanstalkd is great, and I use it myself, however, don't use it for this; It's reinventing the wheel in a bad way. Instead, install a local mail server such as postfix and get that to do your queuing for you. This is also much, much simpler, faster, and easier to control. Email servers are built for managing queues, and they are extremely good at it.
Before you do so, get your mail sending script working – there's no point in even attempting to get something more complex working until you've done that. Also be aware that sending email from EC2 is difficult – Amazon wants you to use their SES service rather than sending directly – you may find sending is blocked altogether. Read the PHPMailer troubleshooting guide to see how to diagnose that.
I have a solution that acts as client service and does some background work. This application requires some settings (that are read from an xml file) to be done at installation time and which are periodically revised. For convenience (as this service is installed on multiple machines) I wanted to control these settings remotely from a central server application. This works fine if the server and client are inside the LAN but I would like to control these settings even if the client is outside the network or the server is behind a firewall. What could be the solutions to do this?
Clearly, the solution depends on exactly what you want to achieve. But if I understand it right, the reason you have "problems" with a firewall is that you simply access the file that contains the XML over the network using standard network file access. Which is typically (for good reason) blocked by the firewall.
So, the solution then would be to use a standard protocol and a "non-standard service". For example, if the machine is allowed incomming HTTP requests, you could use HTTP-based post messages to update the XML content, either send the entire file as a file upload, or make up your own remote access protocol. If HTTP is not allowed, then you have to look at what other "holes" there are in the firewall, and do something similar with another of the "holes".
The other, less obscure solution, is of course to simply use a remote-desktop or secure shell connection to remotely access the machine. Of course, again, assuming this sort of connection is allowed.
There is no magical "bypass firewall" solution - you have to work within the rules of the firewall in some way.
My application runs in Windows and is implemented using C++/Qt.
The application will invoke another application deployed in the Linux server which in turn will invoke some third party tools. The Linux server application will send some status updates based on the running of third party tools. Usually the third party application will run for hours and the updates will be sent at various stages. The Linux server may also has to send some files in addition to the status updates and the Windows client will also send some files required for the running of those third party tools.
I planned to implement this in libssh2 since file transfers can be done and applications can be executed as well using libssh2_channel_exec(). Updates can be sent and received through non-blocking socket transfers. Also the transfers must be secured and they are password authenticated, so I thought SSH will conform my requirements.
I also looked into Qpid of apache which implements the AMQP. The messaging seems to be a more appropriate one for my status updates since the updates are less frequent. But I am not so sure about the secured connection, password authentication and also the application invocation.
So, which one can I choose between these two? Or is there any other better option available? I am not quite used to network programming so any pointers, links regarding this are welcome..
Have you considered some web-based solutions like XML-RPC, REST, SOAP or other? Note that you can either have constant network connection and stream updates or just make your client ask for update as often as it needs.
Also, I think that building solution based on some of these protocols will give you easier coding - no need for some low-level solutions when you have great libraries. As for security part, I would consider SSL that is part of HTTPS protocol to be secure enough. Of course you can also do it hybrid style, for example SSH tunel to secure server and use SSH key authorization.
But if you are sure youwant SSH or AMQP then use first one - I think it has better security. Also, try not using username/passowrd. Instead use mentioned above keys.
Start with SSH, and then consider layering other protocols on top. You can use SSH port forwarding to create a VPN connection to a server, and maybe that will make it easier to use something like AMQP or 0MQ.
Please tell me is it possile to know when a program is trying to download a file ( like in Internet Download Manager ). I want to catch that event (hook it), get the download url, and then destroy the event.
Thanks in advance..
#Jerry Coffin:Sr, I forgot to tell you that this feature of IDM is not active by default. It is only turned on when you enable the "Use advance browser integration" option at "Download/Options" of IDM menu.
Like here :
http://files.myopera.com/UenX/files/Detect.jpg
+ Check the (1) options, OK, then reboot.
+ After reboot, the (2) option will appear, check it, OK, and now run your software. You should see some thing likes (3)
( this appear when I run the msgr9us.exe ( Yahoo! Messenger setup file) )
Give it a try..
For a specific program such as Internet Explorer, doing this is quite reasonable (IE includes hooks to invoke your code under the right circumstances). For most programs it's not possible though -- they simply don't generate any "event" for you to hook and "destroy".
To make a long story short, to get anywhere with this, you'll almost certainly need to handle the situation on a case-by-base basis, writing code specific to each application you want to deal with -- and know that any other application and even newer versions of the applications you've dealt with will probably break what you're trying to do.
Not really. Consider how a browser typically downloads a file: it opens a TCP socket connection to a remote server, either on port 23 or 80, and using the FTP protocol or HTTP protocol on that connection. These things you can detect, intercept and modify with high reliability. But there are other programs that use other mthods. for instance, P2P filesharing programs such as BitTorrent do not use HTTP or FTP, nor do they download a file from a single server.
So, while you don't need to understand every program, you must be able to detect and understand every file download protocol instead.
you could hook the network stream and filter for http download requests.
you'll need some library to capture network traffic (e.g. http://en.wikipedia.org/wiki/Pcap).
Then you'll have to parse the network packets for the appropriate HTTP messages (sorry, I can't give them to you, I don't know them). I don't know if you can actually prevent packets from being sent though.
Another (easier) way would be to implement a proxy server (or modify an existing one) to do what you want. Then you just have to connect the IE to your proxy using the proxy server settings. Check for example Privoxy, which already does some kind of filtering.
This is a newbie question... I want to create a service which responds to emails sent to it.
Just to illustrate. If a user sends an email to handlethis#example.com with some instructions, I want a program at example.com (which is a domain I own) to read the email and act accordingly.
I strongly doubt I can do this with standard web hosts (which are shared), so I welcome suggestions on where I can host something like this (at the cheapest rate).
What will the "program" be written in? Can I use php, etc or is it some specific "email-handling" language!?
Thanks!
S
FWIW, I think this question should be posed on serverfault.com rather than here.
I confirm this is something most shared hostings can't do: You need to be able to create a scheduled task/cron job which checks your e-mail account every x minutes.
You might consider a virtual server hosting. A bit more pricey but much more flexible.
The script would be written in php on Linux or in VBS/JScript/.NET on Windows. I've written such a script in JScript on Windows, using a component that implements POP3.