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Showing results 1 to 31 of 31
Search took 0.01 seconds; generated 5 minute(s) ago. Posts Made By: rgviza
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Forum: Computer Science and Software Design Jun 15th, 2008
Replies: 15
Views: 1,929
Posted By rgviza
Re: Online education?

University of MD has an online school

umuc.edu. You can down online courses all you want but for some people it's the only option (because of work and kids)...

As far as what the degree means, I...
Forum: Computer Science and Software Design Jun 15th, 2008
Replies: 7
Views: 965
Posted By rgviza
Re: Research in Computer Architecture

In other words, git'er DONE!
Forum: Legacy and Other Languages Jun 4th, 2008
Replies: 1
Views: 569
Posted By rgviza
Re: Mathematical Logic Question

The handyman is telling the truth, the rest are lying.

The detective could tell which witnesses were lying through instinct, experience, story comparison and knowledge of human behavior, although...
Forum: Ruby Jun 4th, 2008
Replies: 13
Views: 6,520
Posted By rgviza
Re: Ruby and non-web development

True, and where's the python forum?

They should really have forums for languages like java, ruby and python in both web and thick client places, or stop making the distinction between "web" and "non...
Forum: Ruby Jun 4th, 2008
Replies: 4
Views: 4,810
Posted By rgviza
Re: Having some trouble getting started

Try doing a:

telnet localhost 3000


To see if the service is really starting on that port or there's some other issue. If it times out the service definitely isn't started. Check your firewall...
Forum: PHP Jun 4th, 2008
Replies: 4
Views: 410
Posted By rgviza
Re: php, java and C/C++ which is better

Development is pretty much going to keep you employed no matter what modern language(s) you learn. Pick one and learn it well and the work will find you.

Your chat friend has no clue what he's...
Forum: PHP May 30th, 2008
Replies: 1
Views: 6,828
Posted By rgviza
What you (yes, you too) need to know about sql injection

In reading and posting on this forum, I see a lot of code here that doesn't consider sql injection.

SQL injection is an attack where the attacker terminates or modifies an sql query with input...
Forum: PHP May 29th, 2008
Replies: 16
Views: 995
Posted By rgviza
Re: Where should I save credit card data?

Storing cc info is very bad.

If you really want me to, I'll explain why, but it's pretty well covered in google. The people that run Amazon are insane.

Hint: It's pretty easy to write an...
Forum: PHP May 29th, 2008
Replies: 3
Views: 461
Posted By rgviza
Re: CNAME records

>is this done with CNAME records?
no.
Questions:
1. will xyz.com be living on the same physical server as abc.def.com?
2. is abc.def.com running in an apache vhost already?
3. if you look at the...
Forum: PHP May 23rd, 2008
Replies: 8
Views: 454
Posted By rgviza
Re: Help me understand sessions....please

you need to add a session checker to everything...

pseudocode:

if([user is not logged in])
{
header("Location: /login.php\r\n");
}
Forum: PHP May 23rd, 2008
Replies: 2
Views: 491
Posted By rgviza
Re: Session problem

Determine what constitutes a logged in session. Codify it into an include and include the session checker in each script you want to protect. Unfortunately, example code would be hard to produce...
Forum: PHP May 23rd, 2008
Replies: 2
Views: 491
Posted By rgviza
Re: Session problem

Determine what constitutes a logged in session. Codify it into an include and include the session checker in each script you want to protect. Unfortunately, example code would be hard to produce...
Forum: PHP May 23rd, 2008
Replies: 24
Views: 950
Posted By rgviza
Re: Script for voting

Aieeee!
First, never execute mysql queries in a loop. This is very very bad. Any data you need from the database, unless from unrelated tables, can be pulled with one query.

I've found my self in...
Forum: PHP May 21st, 2008
Replies: 6
Views: 367
Posted By rgviza
Re: Anyone To check My code??

This script is also vulnerable to sql injection.

Always filter your input variables.

Google "sql injection prevention in php" or someone will steal all of your data and compromise your accounts....
Forum: PHP May 16th, 2008
Replies: 2
Views: 1,451
Posted By rgviza
Re: Remove Non Printing Characters From Text

$formvar = preg_replace("/[^\w\d]/g","",$formvar);

inside the brackets add any special characters you want to allow. example:
[^\w\d\-\@\.\&\n ] (note the unescaped space)

A whitelist is far more...
Forum: PHP May 16th, 2008
Replies: 16
Views: 1,760
Posted By rgviza
Re: $_GET['id'] is not working?????

I learned it by EH and advice from experienced penetration testers. people compromise proxies and search the logs for qstring vars sent from forms. Some proxies log the data, even over ssl. When they...
Forum: PHP May 16th, 2008
Replies: 4
Views: 3,971
Posted By rgviza
Re: PHP Split function

forgot to mention the security and language compatibility benefit... \w will match non-english characters if locale is set (usually with a language pulldown)

The security benefit is such a login...
Forum: PHP May 15th, 2008
Replies: 19
Views: 1,475
Posted By rgviza
Re: $_server['script_name']

there's still no space between the attributes.
try

$bobo = strrpos($_SERVER['SCRIPT_FILENAME'], "/bobo/index.php");
if ($bobo)
{
$style_home = ' style="background-color: #6C674F"';
Forum: PHP May 15th, 2008
Replies: 3
Views: 351
Posted By rgviza
Re: help with code

Quick sanity check...
In your original post you first saved the image with a random value, then you generated a new value and inserted it in the database. How could you possibly match the file if you...
Forum: PHP May 15th, 2008
Replies: 1
Views: 301
Posted By rgviza
Re: Custom php.ini help

think of "shell" as "dos prompt for unix".
there are several of them and each has a superset of the same basic commands.

When you log into a host via ssh, after logging in you "get a shell" where...
Forum: PHP May 15th, 2008
Replies: 16
Views: 1,760
Posted By rgviza
Re: $_GET['id'] is not working?????

yea tacking get variables onto a form action is very bad form(no pun intended). Put the data in a hidden field or session and read it out of the appropriate array.

Anyone in the IT industry should...
Forum: PHP May 15th, 2008
Replies: 4
Views: 3,971
Posted By rgviza
Re: PHP Split function

The cleanest way to handle this is:

$id='ha12345';

switch(true)
{
case preg_match("/^\w{2}\d{5}$/",$id):
//user is LLNNNNN
echo "LLNNNNN";
break;
Forum: PHP May 15th, 2008
Replies: 19
Views: 1,475
Posted By rgviza
Re: $_server['script_name']

I'm actually surprised this works at all anywhere because the result will look like:

<li class="linkLevel01"><a href="index.php" class="homy"style="background-color: #6C674F">Home</a></li>

when...
Forum: PHP May 15th, 2008
Replies: 11
Views: 594
Posted By rgviza
Re: i`m lost!!!

You have http://localhost hardcoded in your script, use the host name of the web server.

This would explain why it works on your workstation but not the server. When you have no session data it's...
Forum: PHP May 15th, 2008
Replies: 4
Views: 311
Posted By rgviza
Re: variable values

you can break caches by appending a ?[somevar]=[random string] after the image tag. They determine freshness by url (is it the same?) then, if the url is the same, by checking last modified date,...
Forum: PHP May 14th, 2008
Replies: 9
Views: 829
Posted By rgviza
Re: File Upload Variables

#page 1 form processor
<?php
session_start();
#
$uploadDir = 'upload/';
#

#
if(isset($_POST['upload']))
#
Forum: PHP May 14th, 2008
Replies: 3
Views: 506
Posted By rgviza
Re: Based on IP address change the info of a site

you can parse country information from whois response. the various ip authorities have different record formats so you have some work ahead of you.

ARIN will tell you if you need to go to another...
Forum: PHP May 14th, 2008
Replies: 3
Views: 506
Posted By rgviza
Re: Based on IP address change the info of a site

There are two ways of doing this. One is to buy the MaxMind database, another is to do whois calls using a socket (not through their web interface!) and cache the netblock results so you don't hammer...
Forum: PHP May 14th, 2008
Replies: 1
Views: 248
Posted By rgviza
Re: Help with regular expression please

there's a quote after action= which is breaking the first string argument and it's needlessly complex.

Try

$var='<form method="post" action="xyz.com">';
echo preg_replace("/action=\"xyz.com\"/",...
Forum: PHP May 14th, 2008
Replies: 9
Views: 829
Posted By rgviza
Re: File Upload Variables

I'd put the file upload in page one like the client originally wanted.

On loading page 2 of form, upload file, write it to disk and set a session variable with the file path. Also collect the form...
Forum: PHP May 14th, 2008
Replies: 1
Views: 238
Posted By rgviza
Re: realtime query without cronjob

write a stored function in postgres that outputs the data in mysql's bulk insert format.
bulk insert it into mysql.
-r
Showing results 1 to 31 of 31

 
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