Bài viết
1. Moderate new registrations
Admin CP -> Setting -> Options -> User Registration Options -> Moderate New Members -> Yes
2. Activate email verification
Admin CP -> Settings -> Options -> User Registration Options -> Verify Email address in Registration
3. Upgrade to at least vBulletin version 3.7 or higher. These versions have several Human Verification Options.
Admin CP -> Settings -> Human Verification Manager ->

Image Verification:
This is the same Images Verification Captcha as in older versions of vB, except that this now requires both GD and Freetype 2 to be installed in PHP.

Question and Answer Verification
This allows you to set up a Question and Answer verification during registration. If done correctly it will be almost impossible for bots to enter the correct answer.

reCAPTCHA™ Verification
This uses the reCaptcha service. You will need to register with them and get both a Public and Private key.​
Afeter you have chosen the method you want to use and have set this up, then make sure the correct Human Verification options are set here:
Admin CP -> Settings -> Human Verification Options

And if you have chosen the Image Verification option then you need to choose either GD or ImageMagick here: Admin CP -> Settings -> Options -> Image Settings
You can go back to the Human Verification Manager to make sure the image is showing correctly.

Note: Both are equivalent. These are also required if you use thumbnails for attachments or wish to automatically resize pictures that are too large.
4. Ban 'free' email domains many spammers use.
Admin CP -> Settings -> Options -> User Banning Options -> Banned Email Addresses

List of Email domains to ban


5. Set these options for the Unregistered, Users Awaiting and COPPA usergroups:
Admin CP -> Usergroups -> Usergroup Manager -> Edit ->
Can Use Email to Friend -> No
Can Email Members -> No

Require Human Verification on Configured Actions -> Yes

6. Add a new required question to registration.
Although there is a Q&A option in the Human Verification Manager, at this time these is no way to use this in conjunction with Image Verification or reCaptcha. However there is a workaround for this. You can create a required profile field to add Q&A to the registration process. To do so, follow these instructions: Add an extra question to the registration to prevent bot registrations.

7. Restrict Email to Friend to Registered Users.
Some people have reported that spammers are using the 'Send Email to Friend' function to spam others from your forums. To reduce this make sure that your Unregistered, COPPA and User's Awaiting groups have the 'Can Use Email to Friend' option set to 'No'.

8. Stop bots spamming through the Contact Us link.
Admin CP -> Settings -> Options -> Human Verification Options -> Check 'Contact Us' and 'Register'

9. Enabling Spam Management. vBulletin supports managing spam through the Akismet and Typepad Anti-spam services. Both services require an API key to use. Here is how to obtain those keys.

Akismet -
To obtain an Akismet key, you need to sign up for a account. This will give you a key to use within vBulletin. After signing up please see this page for instructions on retrieving your key:

Typepad -
Typepad also requires a key to be used. To get one go to this link here:

Once you have your key, you need to enter it into your vBulletin Options under:Admin CP -> Settings -> Options -> vBulletin Options -> Spam Management -> vBulletin Anti-Spam Key Powered by Akismet

It has become apparent from our customers and customers of other BB Systems that there is a targeted effort being made to spam forums world-wide. Unfortunately as part of that effort it appears that ReCaptcha may have been cracked as per this page:

Until this is confirmed, we are strongly recommending that customers consider switching to the vB Q&A Verification system for now. To do this, go into the Admin CP here:

Admin CP -> Human Verifications Options -> Image Verification -> Question & Answer -> Save

Once you do that, you can click on 'Add New Question' to add a question and answer. [Note: You can use REGEX for the answer but this is not necessary.]

For instance:

Question: What is the third word in this sentence?

Then click on 'Save'. Next click on 'Add New Answer' and enter:

Answer: the

You can add as many questions as you can and vB will choose one randomly for each registration. You can also enter multiple answers to the same question.

How to moderate posts and threads from new users.

Create a new group for your approved members.
Admin CP -> Usergroups -> Add New Usergroup
At the top it says "Create Usergroup Based off of Usergroup" in the dropdown choose Registered Usergroup and then click Go if necessary.

In your new usergroup, you can change the name and description if you want.

Scroll to the bottom and just above the save it will say "Create Permissions Based off of Usergroup". Choose Registered here. If you have no custom permissions for the registered usergroup or it says none, just click the save button.

Setup a new Usergroup Promotion.
Admin CP -> Usergroups -> Promotions
Use these settings, where X is the number of approved posts that are required:

Usergroup - Registered Users
Reputation Comparison Type - Greater or Equal to
Reputation Level - 0
Days Registered - 0
Posts - X
Promotion Strategy - Posts
Promotion Type - Primary Usergroup
Move User to Usergroup - the group you created for approved members

Run the scheduled task for Usergroup Promotions.
Admin CP -> Scheduled Tasks -> Scheduled Task Manager
Click the "Run Now" button to the right of the Usergroup Promotions task.

Finally remove you need to adjust the permissions of the Registered Usergroup so their posts and threads are moderated. Go to the Usergroup Manager and edit the registered usergroup.
Admin CP -> Usergroup Manager -> Registered Usergroup -> Edit Usergroup -> Go.
Set "Follow Forum Moderations Rules" to No.

Press Alt-S or click the SAVE button at the bottom of the form.

You will need to check the moderation queue in your UserCP on a regular basis to approve or delete messages from new users. Your moderators also have access in their User CP.

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