FTP & Firewalls

[TimTDP]

I need to get files off remote customer PC's.
If I write a programme to do so using FTP as the transfer protocol, will I run into problems with corporate firewalls etc
Will I still need the corporates to allow access?
any advice on how to develop such an app?
I understand the need for security, and am happy to include a dialogue box asking permission to transfer the file. It is a legit application!

 

[concentricpuddle]

Use Opera Unite (unite.opera.com) if you have international.

Disclaimer: I haven't used it, but have read good things.

 

[Amida]

If the client's computer is going to upload it to your server then it should be fine. Most coporates don't block port 21. I know of some that do thou.

 

[zamicro]

If the client's computer is going to upload it to your server then it should be fine. Most coporates don't block port 21. I know of some that do thou.

All corporates I have worked for blocked port 21 for incoming traffic.

In reality, you cannot assume any port will be available. I recommend you make the port a setting which can be changed in the settings of your app.

 

[gregmcc]

All corporates I have worked for blocked port 21 for incoming traffic.

In reality, you cannot assume any port will be available. I recommend you make the port a setting which can be changed in the settings of your app.

+1

All corporates block port 21 - if they don't the firewalladmin should be fired.

Don't assume any port will be open because it probably won't be. Make sure your application supports a proxy server - its far more likely to get implemented then.

 

[syntax]

I need to get files off remote customer PC's.
If I write a programme to do so using FTP as the transfer protocol, will I run into problems with corporate firewalls etc
Will I still need the corporates to allow access?
any advice on how to develop such an app?
I understand the need for security, and am happy to include a dialogue box asking permission to transfer the file. It is a legit application!

From what i understand the app will run on the remote pc and upload to your server using ftp?
Depends on the corporation, but the average end user does not need to use ftp in their daily task and ftp will be blocked.
You may also encounter DLP issues depending on the nature of the company and the files being transferred.

 

[Amida]

All corporates I have worked for blocked port 21 for incoming traffic.

In reality, you cannot assume any port will be available. I recommend you make the port a setting which can be changed in the settings of your app.

He requires outgoing to be open not incoming. in most companies outgoing will be open as people require it on a daily basis.

 

[gregmcc]

He requires outgoing to be open not incoming. in most companies outgoing will be open as people require it on a daily basis.

Not really - in most places (that are security conscious) all outgoing ports are blocked. If you want to access something on the outside you need to go via proxy.

Direct 80/443/21 outbound access is madness - its great for malware!

 

[adielh]

Hi Tim

I suggest you get the programs hamachi and ultra vnc , or team viewer, I like team viewer as its fast and easy to install.
hola if you need help to set up