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phoenixtaz13
Junior Member
129 Posts |
 Posted - 24 February 2009 : 02:55:59
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hello... good day to all.... :)
i've installed antispam captcha mod... so far its working well...
i'd like to put it also in search engine, how do i do that?.... and how can i adjust the image, to control the distortion... sometimes its hard to read it....
thanks in advance...
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HuwR
Forum Admin
United Kingdom
20593 Posts |
Posted - 24 February 2009 : 03:05:16
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| why would you want an anti-spam control on the search page, it is not possible to spam anything from the search page< |
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Podge
Support Moderator
Ireland
3776 Posts |
Posted - 24 February 2009 : 05:36:17
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If you want to make the letters more readable you need to open captcha.asp and make alterations there.
sub Lines draws random lines across the image
sub Circles draws random circles across the image
sub drawcode() draws the letters using different colours and random x & y offsets
sub Grid (colour) draws a grid across the image
These subs are called in different orders randomly to produce different effects i.e.
captchaType = int(rnd(1)*4)+1
select case captchaType
case "1"
Lines
drawcode
circles
case "2"
drawcode
Grid 0
case "3"
drawcode
Grid 1
case "4"
drawcode
lines
Grid 0
end select
You could add another case at the end that would just draw the code without any obfuscation (lines, circles or grids across the image) and always call it
captchaType = 5
select case captchaType
case "1"
Lines
drawcode
circles
case "2"
drawcode
Grid 0
case "3"
drawcode
Grid 1
case "4"
drawcode
lines
Grid 0
case "5"
drawcode
end select
You're better off to use Gatekeeper in my opinion.
Edit: I agree with HuwR about the search page. A better option might be to restrict searching to members only< |
Podge.
The Hunger Site - Click to donate free food | My Blog | Snitz 3.4.05 AutoInstall (Beta!)
My Mods: CAPTCHA Mod | GateKeeper Mod
Tutorial: Enable subscriptions on your board
Warning: The post above or below may contain nuts. |
Edited by - Podge on 24 February 2009 05:37:32 |
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phoenixtaz13
Junior Member
129 Posts |
Posted - 24 February 2009 : 08:49:49
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thanks guys.... i'll work on the captcha.... :)
i saw in some forum in the search area it has captcha... i thought it would be great if i have it also.... :)
btw, what does a gatekeeper do?... how does it work?...
thanks for the time.... :)
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HuwR
Forum Admin
United Kingdom
20593 Posts |
Posted - 24 February 2009 : 09:10:35
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just because someone else has something does not necesarily mean it is a good or even useful thing to have. Tools are useful when used for the purpose they were designed for, having an antispam tool on a page that can not be spammed is just going to annoy the hell out of your members.
Gatekeeper is an antispam MOD that works in the same way as a CAPTCHA but without the visual difficulties associated with an image based CAPTCHA< |
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bobby131313
Senior Member
USA
1163 Posts |
Posted - 24 February 2009 : 09:39:42
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| DOS attacks on forums usually hit the search page hard since it generates a lot of resource usage. I would do it in a heartbeat if I had that problem, but not just for the sake of doing it.< |
Switch the order of your title tags |
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phoenixtaz13
Junior Member
129 Posts |
Posted - 24 February 2009 : 09:45:35
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thanks huwr.... :)
point taken.... :)
wich is better, gatekeeper or captcha?....
im sorry for the dumb question, im a newbie... despite of my learning disability i'm trying my best to learn.... :)
thanks for ur time... appreciate it very much.... :)
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Podge
Support Moderator
Ireland
3776 Posts |
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phoenixtaz13
Junior Member
129 Posts |
Posted - 24 February 2009 : 09:56:58
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bobby... :)
how does a dos attack function?.... how do i prevent dos attack?.... in my previous post, i encountered a bot, and it stayed in the search page, if i remember it correctly, about 380 mins.... and since i saw the captcha in other forum search page, with my poor knowledge in programming i thought that was the purpose of it...
and now i know what is what, thanks to huwr... :)
anymore advices or suggestions?....
thanks for ur time.... :)
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bobby131313
Senior Member
USA
1163 Posts |
Posted - 24 February 2009 : 10:27:25
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Well you really need to have some enemies before it's likely to happen to you. 
It's automated attacks designed to slow or bring down your server. Forums are hit on the search page usually because it's the most server intensive spot. Captcha would thwart a robot. But as I said, if you don't have that problem all your likely to do is inconvenience your users.
I hang out on some forums that expose internet bad guys that get attempted DOS attacks on thier forums frequently, so they have Captcha on just about everything.... and it works.< |
Switch the order of your title tags |
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HuwR
Forum Admin
United Kingdom
20593 Posts |
Posted - 24 February 2009 : 10:30:53
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quote:
how do i prevent dos attack?....
prevent non members from accessing the search page, better to prevent them completely than piss off your users, or if you want search exposed then only use a CAPTCHA for NON members< |
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HuwR
Forum Admin
United Kingdom
20593 Posts |
Posted - 24 February 2009 : 10:33:05
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quote:
so they have Captcha on just about everything.... and it works.
I would say it is 'effective' rather than 'it works', since it does not actually work, because CAPTCHA's are NOT userbility friendly, they prevent ligitimate people from accessing as well as bots.< |
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bobby131313
Senior Member
USA
1163 Posts |
Posted - 24 February 2009 : 10:43:13
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quote:
they prevent ligitimate people from accessing as well as bots.
Certainly not as many legitimate people as....
quote:
prevent non members from accessing the search page
....which I would never do.
To each his own.< |
Switch the order of your title tags |
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HuwR
Forum Admin
United Kingdom
20593 Posts |
Posted - 24 February 2009 : 10:48:51
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the prevention of 1 legitimate person from accessing your forum is too many, there are other ways of preventing bots from DOSing your search page without preventing normal users from accessing it as well.
by using a Captcha YOU ARE preventing non members from accessing your search.< |
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bobby131313
Senior Member
USA
1163 Posts |
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phoenixtaz13
Junior Member
129 Posts |
Posted - 24 February 2009 : 11:03:00
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thanks guys for the input.... :)
podge, nice video tutorial... :)
thank u for the time, really, really appreciate it.... :)
god bless.... :)
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Topic |
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antispam Captcha mod
