Some basic questions on File Adapter

[Former Member]

Hello all,

I have some basic questions on XI and File Adapter and hope you can help me. Any answer is appreciated.

1. Can I use NFS transport protocol to poll a file from a machine in the network, which is not the XI? Or do I have to use FTP instead?

2. If I understand it correctly - when using the FTP-File Adapter, XI has the role of a ftp client. I have to run a ftp server on my distant machine. XI connects to FTP-Server and polls the file.

Can it also be configured the other way round? The scenario I think of would be: FTP client installed on distant machine, which connects to FTP-Server(XI) and loads up a file. So XI would act as FTP Server.

I know this works, if I install a ftp Server on the computer my XI runs on, and use the NFS-File Adapter to observe the folder. But I want to know, if I need a second, independant ftp server for this.

3. And last but not least: When do I need the active ftp mode instead of passive?

Thanx a lot for your answers!

Ilona

[bhavesh_kantilal · Accepted solution]

Hi,

1<i>. Can I use NFS transport protocol to poll a file from a machine in the network, which is not the XI? Or do I have to use FTP instead?</i>

As long as XI can access this folder, NFS can be used. The fire wall and ports should be open.

2

<i>Can it also be configured the other way round? The scenario I think of would be: FTP client installed on distant machine, which connects to FTP-Server(XI) and loads up a file. So XI would act as FTP Server.</i>

I dont think this is possible. You use XI's file adapter to connect to a FTP server and cannot use another FTP client to access XI as an FTP.

Any special reason for this,. Can you give more details?

Regards,

Bhavesh

[agasthuri_doss]

Hi Ilona,

This will help you to understand more,

http://www.ftp-server-tftp-lpd-bootp.com/

Regards

Agasthuri Doss

[Former Member]

Hi llona,

Just to add with others....

>>>Can I use NFS transport protocol to poll a file from a machine in the network, which is not the XI?

I asked exactly the same question in SAP Tech Ed and the speaker's reply was <i><b>"Technically speaking it is possible. But that is not the right approach. You need to have a ftp server running on the application server which is going to act as sender/receiver. The other option would be to have a local adapter engine installed on the appln server."</b></i>

Regards,

Jai Shankar.

[Former Member]

> Hello all,

> I have some basic questions on XI and File Adapter

> and hope you can help me. Any answer is appreciated.

>

>

> 1. Can I use NFS transport protocol to poll a file

> from a machine in the network, which is not the XI?

<b>yes</b>

> Or do I have to use FTP instead?

>

<b>also you can do it</b>

> 2. If I understand it correctly - when using the

> FTP-File Adapter, XI has the role of a ftp client. I

> have to run a ftp server on my distant machine. XI

> connects to FTP-Server and polls the file.

> Can it also be configured the other way round? The

> scenario I think of would be: FTP client installed on

> distant machine, which connects to FTP-Server(XI) and

> loads up a file. So XI would act as FTP Server.

> I know this works, if I install a ftp Server on the

> computer my XI runs on, and use the NFS-File Adapter

> to observe the folder. But I want to know, if I need

> a second, independant ftp server for this.

>

<b>XI cannot act as FTP server, but it is always a client. When XI is reading (File sender adpater) when XIis writing than it is File Receiver adapter</b>

> 3. And last but not least: When do I need the active

> ftp mode instead of passive?

>

<b>It depends on your firewall configuration. The best and the fastests is active mode but not always available.</b>

> Thanx a lot for your answers!

> Ilona

[MichalKrawczyk]

hi,

>>>>1. Can I use NFS transport protocol to poll a file from a machine in the network, which is not the XI?

you can go for NFS

>>>>2. If I understand it correctly - when using the FTP-File Adapter,

In both directions - ftp - XI and XI - FTP XI connects to the FTP server

>>>>3. And last but not least: When do I need the active ftp mode instead of passive?

depends on your FTP <b>server </b>

(check your FTP server specification)

Regards,

michal

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<a href="/people/michal.krawczyk2/blog/2005/06/28/xipi-faq-frequently-asked-questions"><b>XI / PI FAQ - Frequently Asked Questions</b></a>