[lug] ftp problem

[John Hernandez]

Gary, try manually transferring the file(s) using a different protocol, 
such as ssh.  If that works reliably, dig no further and consider it a 
good excuse to ditch ftp ;)

Gary Hodges wrote:
> I could try it, but I think I have conclusively shown that the problem 
> is in the transmission, not inherent in the files.  When a file has come 
> in with errors I've verified it is OK on the machine it was created on.  
> And often with a second attempt it comes in OK.
> 
> Cheers,
> Gary
> 
> George Sexton wrote:
> 
>> What if you try:
>>
>> tar -c path | bzip2 > file.tar.bz2
>>
>> And then transmit it.
>>
>> George Sexton
>> MH Software, Inc.
>> http://www.mhsoftware.com/
>> Voice: 303 438 9585
>>  
>>
>>  
>>
>>> -----Original Message-----
>>> From: lug-bounces at lug.boulder.co.us 
>>> [mailto:lug-bounces at lug.boulder.co.us] On Behalf Of Gary Hodges
>>> Sent: Tuesday, March 08, 2005 4:32 PM
>>> To: Boulder (Colorado) Linux Users Group -- General Mailing List
>>> Subject: Re: [lug] ftp problem
>>>
>>> For another test I tried uploading ten uncompressed tar files and 
>>> four came in without problems.  Tar archives are sequential, right?  
>>> I think it is strange that files are randomly missing from the tar 
>>> archives.  If the transfer didn't finish, wouldn't the files be 
>>> missing from the end?  I'll play with the size verification code 
>>> below and the md5 suggestion too...
>>>
>>> Gary
>>>
>>> Ron Wright wrote:
>>>
>>>   
>>>
>>>> Also, at ftp time you can verify the size on both ends.  Use:
>>>>  $localsize = (stat($filename))[7];
>>>>  $remotesize = $ftp->size($filename);
>>>>
>>>>
>>>> On Tue, 8 Mar 2005 12:05:06 -0700, Daniel Webb     
>>>
>>> <lists at danielwebb.us> wrote:
>>>   
>>>
>>>>
>>>>
>>>>     
>>>>
>>>>> On Tue, Mar 08, 2005 at 10:36:11AM -0700, Gary Hodges wrote:
>>>>>
>>>>>  
>>>>>       
>>>>>
>>>>>> Is it possible the firewall is stripping files out of the         
>>>
>>> tar archive or
>>>   
>>>
>>>>>> should we look somewhere else?
>>>>>>    
>>>>>>         
>>>>>
>>>>> My guess is that the missing files are at the end of the       
>>>
>>> archive, and
>>>   
>>>
>>>>> the archives are sometimes not getting through completely.        
>>>
>>> Maybe add
>>>   
>>>
>>>>> something to your script to send along an md5 hash to make sure the
>>>>> received file is the same as the sent file.  The last place I would
>>>>> suspect would be that a firewall is set up to examine and       
>>>
>>> filter .tar.gz
>>>   
>>>
>>>>> files...
>>>>>
>>>>>
> 
> 
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