[BlueOnyx:14706] Re: FTP Problem after yum update

[Eric Peabody]

Colin,

You might check using both passive and active mode connections with the 
ftp client, being sure to download a file with each. If both work then 
Chris' suggestion sounds reasonable. You might also read about the debug 
log here: http://www.proftpd.org/docs/modules/mod_core.html#DebugLevel. 
Getting more detailed output can be a big help.

If only one mode works, then the debug log can help diagnose the 
problem. For our servers, we use NAT behind a firewall so have to set 
MasqueradeAddress for each virtual site. When an update replaces 
/etc/proftpd.conf, we have put back the MasqueradeAddress stanzas or 
passive mode won't work. Something like that might be the cause of your 
problem.

I've also found using the FileZilla client with debug logging turned up 
complements the server logs.

Finally, run a diff between the last two versions of /etc/proftpd.conf 
and see what's changed.

Eric

On 2/19/14 12:50 PM, Chris Gebhardt - VIRTBIZ Internet wrote:
> On 2/19/2014 12:07 PM, Colin Jack wrote:
>> This problem has been recently reported and I have verified that it exists.
>>
>> One of our servers has stopped allowing FTP access via web browser - used to work fine. Still okay via FTP client.
>> The only thing that I can think of that has changed was the recent big yum update although we have other servers that have been updated and the FTP is working fine via web browser, so may have nothing to do with it.
>>
>> Server is BX 5106R
>>
>> Anybody any ideas? Used to work.
> Hi Colin,
>
> Are you sure it isn't the browser?   I know that some time ago the web
> browsers used to have FTP client functionality, but some of that has
> been removed from IE and FireFox (I'm aware of those, maybe others).
>
> Generally speaking, the BlueOnyx server doesn't really care - in fact
> isn't aware - of whether the connecting client is a web-browser,
> command-line or commercial FTP client, so it's not making any decisions
> on whether it should work or not.   If the server works with one client,
> it'll work with all.   Which is why I recommend investigating if it
> really might be a browser issue instead.
>

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