Cisco Cisco ACNS Software Version 5.5 Information Guide

Can the CE fetch content via FTP from any FTP server?
Which FTP servers have been tested and work with ACNS?
Related Information

In Application and Content Networking Software (ACNS) 5.x.x, the root Content Engine (CE) can be
configured to fetch with HTTP or FTP from the origin server. This document discusses some caveats
regarding the FTP server software.

Refer to Cisco Technical Tips Conventions for more information on document conventions.

A. No. The FTP server software must support either:

The MDTM ftp command

♦ 

The LIST command for files and the LIST command for folders

♦ 

The reason for this is that the ACNS acquirer needs to know the last−modify time and file
size before it can download the file. Currently, ACNS uses MDTM if the FTP server supports
it; if not supported, ACNS uses the LIST command on the file. If both are not supported,
fetching via FTP fails.

A. These have been tested with ACNS 5.x.x software:

WS_FTP server: http://ftp6.ipswitch.com/Ipswitch/Product_Downloads/ifs_eval.exe

♦ 

BulletProof FTP server: http://archive.digitalcandle.com/ftpsetup.exe

♦ 

Titan FTP server: http://download.com.com/3001−2165−10202896.html

♦ 

SurgeFT: ftp://ftp.netwinsite.com/pub/surgeftp/surgeftp2−2g6_nt.exe

♦ 

LiteServe: http://download.com.com/3001−2165−10197127.html

♦ 

SlimFTPd: http://download.com.com/3001−2160−10117426.html

♦ 

Note: Within ACNS, the acquirer tries PASV first. If the server responds with an error or
not−implement, ACNS uses PORT mode. The acquirer does support active mode (PORT) if
the PASV command is not supported by the server. If the server hangs on the PASV
command however, FTP fails and never attempts PORT mode.