It seeems that captcha is on its way out now that more applications are able to "read" captcha images. Since I like trying to stay a step ahead, what do you think of this concept and do you think it will work.
Just a note, it is not completed at this time as I'm still coding it. You can keep refreshing the page to see the others. This is still strictly a work in progress (WIP).
I have this setup...
* For some, I have 2 rows of numbers/letters. The script will expect only one row to be re-typed.
* Using the 2 rows setup from above, the script could also ask for the letters in column 1 to be re-typed. There are 4 columns.
* Thers also one for where the script will generate a 8 character string, but it will ask for letters with a specified color.
How well do you think this will thwart such applications using OCR capabilities.?
Demo: [url]
Just a note: * That site is run out of my house specifically for development purposes so if you access it and get parse errors, or no loads... you know a possible reason why the script will be up and down.
* Remember... It's not done, I'm going to add grid lines around the lettering for the columns and rows and possibly make the text larger.
* Also right now, the colors only return as one color... Soon, each letter will be given a random color.
Can I know is the latest version of phpbb still vulnerable to bots signing up? I had given up using phpbb for sometime. Thinking of using it again but I really fear those bots.
Does anyone know of any language-neutral captcha scripts that can be run on the server-side and your customers can access via includes or what-not? I'd like to offer some sort of captcha solution to my customers to protect their web forms.
Then, on 10-22-2007, 05:27 PM, "domainworldaccess" replied:
Quote:
bestwebforms.com
Never used it. Heard it is nice. About $30 for up to 50 sites...
(There were no other replies in that thread.)
Are there any readers here who have tried using the paid solution offered by bestwebforms.com? When I visited the site, it seemed that their CAPTCHA graphics files looked a little primitive. Since I have not downloaded their package, I do not know how well it works, or how effective it might be in discouraging web form spamming.
They say that one only needs to insert a short JavaScript on the web page in order to implement their pre-formatted forms. But what if one wishes to apply their CAPTCHA solution to a custom-designed form and lay-out that is already in use (i.e.: currently running without CAPTCHA)?
It would be terrific if any readers could reply with a list of their favorite sources for CAPTCHA scripts, particularly those which can be easily implemented without extensive knowledge of perl or other programming experience.
Assuming one has good HTML and basic script editing capability, which scripts would you suggest? Do they generate the CAPTCHA graphics on-the-fly, or do they depend on a static library of existing .gif files?
Have you tested the script(s) yourself, and arrived at any conclusions on its/their efficacy in combatting web form spam, while still permitting reasonable access by humans with various levels of visual acuity, i.e.: the ability to discern different colors, or contrast between the characters and background?
Since I've read that there may be a number of effective anti-CAPTCHA schemes used by spammers out there (which are able to automatically decode or read the obscured characters with some sort of OCR (Optical Character Recognition) technology, I would like to know whether the whole CAPTCHA approach is now considered to be an exercise in futility.
For example, I noticed that Network Solutions had been using CAPTCHA for a time on their WHOIS search page, but later abandoned it. I'm assuming they may have concluded that it was hindering more valid users from performing searches, than it was effective in stopping spam submissions.
A while back, I did read some forum posts which suggested wrapping the form action in JavaScript, in order to foil certain automated spambots. However, after implementing that solution, I have not found it to be entirely effective. Of course, I have no way of knowing whether the comment spam that we continue to get now was generated by a human or a spambot.
Finally, it seems that our web host's Spam Assassin software, while it is pretty decent at detecting spam in regular e-mail, does nothing to filter spam in web forms whose input is delivered by e-mail. I don't understand why this is, since it still must pass through the mail server in order to be delivered to me.
I am not sure if many of you have been getting this same spam. But I've been getting spam about sexual topics and the email is just an image with words written on it.
Sometimes the email has words too such as what is written below.
Quote:
Doees Using sexual Body Langauge to Attract Women Really Works? www. med72. com. Chicago Bulls' Masecot Sued For Baad High-Five
I was wondering if you know of a way to block those emails.
I installed imagemagick perl module but it is still giving off this error
Can't locate Image/Magick.pm in @INC (@INC contains: /home/user/real/mgmt/perl /usr/local/lib/perl5/5.8.8/i686-linux /usr/local/lib/perl5/5.8.8 /usr/local/lib/perl5/site_perl/5.8.8/i686-linux /usr/local/lib/perl5/site_perl/5.8.8 /usr/local/lib/perl5/site_perl .) at /home/user/real/mgmt/perl/real/Image.pm line 33. BEGIN failed--compilation aborted at /home/user/real/mgmt/perl/real/Image.pm line 33. Compilation failed in require at gallery.pl line 42. BEGIN failed--compilation aborted at gallery.pl line 42.
I have developed website which will allow user to upload 1-2 photos and also allow to see other users photo and rate them. For this I have planned to go for VPS. I am also thinking of another alternative of using image hosting service, where I will keep all user photos on image hosting server and embed links given by image server in my webpage.
Now my question is.
1) Using image hosting is faster(respone time for each user) than VPS?
2) How exactly using image hosting works. when user request web page from my server, will my server go and fetch entire image from image server and then send final result to user brower?
where I can host images for my site. It will be thousands of smaller image like 5k - 30k. I am looking at free sites like imageshak. They say in their terms of service that I can host images for my site as long as I don't host all my images. So do you think that I could put like 20 thousand images on their site? These images would not get accessed too much so it won't slam their servers or anything.
I haven't been able to find much about this searching, but are people using NAS storage to deliver website images? I've never used NAS before and am not familiar with their performance.
I created a 4GB disk image for a virtual machine in Xen. (I have root on the physical box, so please don't tell me to contact my VPS provider!)
The disk was filling up, so I took the advice online and created a 6GB file with dd (zero-filled), cat'ed it to the end of my disk file, and then...
[matt@babe centos]$ sudo resize2fs -f ./cent.img resize2fs 1.39 (29-May-2006) resize2fs: Bad magic number in super-block while trying to open ./cent.img Couldn't find valid filesystem superblock. Of course, fsck won't take a disk image, only an actual partition. And I can't mount it, since I get the same error about a bad superblock.
The VM actually boots up fine, but it only sees 4GB of what's now a 10GB file.
I can use losetup to mount it on a /dev, but still get fsck errors:
[matt@babe centos]$ sudo fsck.ext3 -b 8193 /dev/loop3 e2fsck 1.39 (29-May-2006) fsck.ext3: Bad magic number in super-block while trying to open /dev/loop3
The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device>
I don't know what blocksize was used, so I don't know where to look for a superblock... (I'm out of my league on fsck'ing virtual disks.)
The thing boots fine and is non-mission-critical right now, so worst-case, I can just mount it, rsync the data to the host, and then set up a new machine and rsync that in... I'd just rather not go through that hassle if I don't have to.
My goal is to block hotlinking of fullsize images and display a image when they attempt it... but allow clickable thumbnails to be shown. For some reason the following isn't working...
My htaccess looks like this:
RewriteEngine On RewriteBase /images
#Allow if it's not from another website RewriteCond %{HTTP_REFERER} ^$ [OR] RewriteCond %{HTTP_REFERER} ^[url] RewriteCond %{HTTP_REFERER} ^[url]
#Allow if it's the hotlink.gif RewriteCond %{REQUEST_FILENAME} hotlink.gif [NC,OR]
#Pass through thumbnails or hightlights as-is RewriteCond %{REQUEST_URI} .thumb.jpg$ [NC,OR]
#Return an anti-hotlink gif in place of any visual media RewriteRule .*.(jpe?g|gif|bmp|png)$ css/images/hotlink.gif [R,L,NC]
i have a forum site which is running on a vps 45gb space and 2000gb put i would like to offer my members a means to upload images small files max 5-10mb just with in the site but i would like to use a totally new server are there any shared host that will allow this has i will use a scrpit has well on it
i have set up a sever with certain software exactly the way i want it. However, there is some extra stuff i need to install on it.
I am running Centos 5.1 and would like to run some command possibly via ssh which would create an entire image of the server in a disk format such as ISO and then if need be, reinstall the basic operating system and restore the ISO back up if need be.
Is this possible?
If so how and how would i restore the image as well?
I have started a new image hosting website and currently i alloted 7 GB Disk Space and 30GB BW. I know it will not be enough after the site get famous. So which host i can go for to be in a safer side with my image hosting website?
I am having a win 2003 server with a static ip and i have hosted 2 web sites in the iis server but no images are been displayed is it something to do with the designing of the site or some problem in my hosting,
I run a large community site, and i was wondering what the max amount of images I should have in an image folder? I'm looking to upgrade to an image only server and setup subdomain folders to split up the files. right now i have about 200k+ image files in just the public image folder... thats not counting the thumbnail folder, private folders etc...
I'm trying to get a problem with image hotlinking under control. What I'd like is to allow linking to thumbnails but only allow the fullsize images to be served via another page.
What I'd like is to allow all request to /thumbs/(1-99)/*.jpg but redirect all calls to uploads/(1-99)/*.jpg to view_image.php while allowing all calls to any other existing php page on the site.
I thought it would be something like this but I've tried many variation on the standard denying hotlinking .htaccess scripts I've got and they work to a point but I can't seem to combine them to perform the above?
Can someone please put me out of my misery or point me to a good mod_rewrite tutorial!!!
I need to find out what would be the best software to run an image website for one of my clients, there is only one domain so I've considered using LiteSpeed Standard (Free)... What server do you think would be the best?
All I need is PHP support for the image viewer software.
I am working on a website that is running on IIS that cannot load any images larger than say 4KB to an outside connection. On the local LAN that this box is connected to the page loads without any issues. However, as soon as it goes out through our Microsoft ISA 2006 server to a public site it will not load images or you get only some of the image loading.
I just purchased a Dell 2161DS-2 and I wanted to know if a rumor i've heard is true.
I've had a few people tell me its possible to remotely deploy and install images using this device and a USB hard drive which would plug in to it. If its possible can anyone find me a guide or explain how it is done?