Preamble:

-rw------- 1 apache root 273K 24. Jul 15:37 UPLOAD_PATH1
-rw-r--r-- 1 apache root 275K 24. Jul 15:37 UPLOAD_PATH10
-rw-r--r-- 1 apache root 220K 19. Okt 15:14 UPLOAD_PATH11
-rw-r--r-- 1 apache root 3,1M 19. Okt 15:17 UPLOAD_PATH12
-rw-r--r-- 1 apache root 241K 19. Okt 16:13 UPLOAD_PATH13
-rw------- 1 apache root  60K 24. Jul 15:37 UPLOAD_PATH2
-rw------- 1 apache root 105K 24. Jul 15:37 UPLOAD_PATH3
-rw------- 1 apache root  60K 24. Jul 15:37 UPLOAD_PATH4
-rw------- 1 apache root  60K 24. Jul 15:37 UPLOAD_PATH5
-rw------- 1 apache root  60K 24. Jul 15:37 UPLOAD_PATH6
-rw------- 1 apache root  60K 24. Jul 15:37 UPLOAD_PATH7
-rw------- 1 apache root  60K 24. Jul 15:37 UPLOAD_PATH8
-rw-r--r-- 1 apache root 273K 24. Jul 15:37 UPLOAD_PATH9

The way to rename them is pretty simple with a bash script, but the notation/ syntax
is just a little bit tricky.
While searching with google, I’d found several scripts but no simple solution.
My solution just executes a ls command, push the output in an array, and the builds a new name using sed.
After this steps, the new name is ready to use with a simple mv command.

Solution via bash:

#!/bin/bash
list=(`ls `)
for filename in "${list[@]}"
do
  myvar=$(echo $filename | sed 's/UPLOAD_PATH//g')
  #echo 'mv '$filename' '$myvar
  mv $filename $myvar
done

After the my last surf holidays in September 2009 I had a problem with my two cameras… Sony Alpha 200 and Pentax Option W60. Both got different filenamings and right now I’ve never seen a camera where you can fully design the filename format.
While I worked with windows, years ago, I used a app named ‘Joe’,.. but port a windows app to Linux.. no thanks
The name of (one) solution is exiv2!

Installing exiv2 on debian based systems:

sudo apt-get update
apt-get install exiv2

Renaming:
Launch a terminal, go to the dir where the photos are located

cd /home/per/Documents/Portugal2009

Rename them:

exiv2 mv -r "%Y-%m-%d_%H:%M:%S_My_Name" *

Before: IMGP0078.JPG
After: 2009-09-03_16:54:42_My_Name.JPG

First way… using a .htaccess which controls the access using a apache web server.
This is a very fast sollution BUT you CAN’T use hostnames and or full qualified dns names like skycube.net or yourname.dyndns.org

<Limit GET HEAD POST>
order deny,allow
allow from 62.75.185.219
allow from 127.0.1.1
allow from 127.0.0.1
deny from all
</Limit>

The second way… which I prefer, using a php code snippet. This allows you to use hostnames and full qualified domain names. Definitely you can write it in less than the lines I used below for the code, but in of understanding what the code does, it’s better

<?php
/**
 * ACL array
 */
$valid_hosts = array();
$valid_hosts[] = 'localhost';
$valid_hosts[] = '127.0.0.1';
$valid_hosts[] = '127.0.1.1';
$valid_hosts[] = 'yourname.dyndns.org';
$valid_hosts[] = 'skycube.net';
 
for($i=0;$i<sizeof($valid_hosts);$i++){
  $valid_ip = gethostbyname($valid_hosts[$i]);
  if($valid_ip == $_SERVER['REMOTE_ADDR']){
    $valid_state = 'valid';
    break;
  }
  else{
    $valid_state = 'invalid';
  }
}
if($valid_state != 'valid')
  header("Location: http://www.skycube.net");
?>

After I installed the app, I just tried to run,.. Saw the splash and then everything closes..
What happened..

I started the program in a shell and there is the problem:

Installing desktop icon...
Warning: Unable to create prefs directory '/home/pbaasch/.googleearth'. File exists.
./googleearth-bin: relocation error: /usr/lib/i686/cmov/libssl.so.0.9.8: symbol BIO_test_flags, version OPENSSL_0.9.8 not defined in file libcrypto.so.0.9.8 with link time reference

The sollution is very simple, just a workaround, but it works:

Find the file libcrypto.so.0.9.8 and just rename or delete it...

On enterprise applications it’s recommended to set php display errors to off, so won’t see what really happened.

While tracking the problem to your browser and the customers and may the service provider, you should just login with a shell.
First thing you should do is, like all time, who and last. After that, may you try to find out what happen in the apache access and error log. You will find nothing, cause there is nothing critical, nothing new. May you see the session file in your filesystem, but why is it empty? A php bug?

Why? Ok just the answer, try this: df -h , you will see the a 100% full partition and when you try a du -shm /var/log/* you see your problem… GB’s of apache logs…

What happened? Your Web 2.0 application uses polling, and your apache got a custom, combined log which writes to access.log.

• Solution 1: Drop the line in your apache virtualhost configuration for custom, combined log

• Solution 2: Proceed a massive logrotation

• Solution 3: Pipe the combined log to a perl or php-cli script which filters the polling events (I prefer)

On local, staging and or development installations you should switch the display errors for php to on,… then you get messages like this:

WARNING: session_write_close() [function.session-write-close]...