What is rate limiting and how can I enable it in Composr?
Answer
Rate limiting prevents server overload by restricting the number of requests allowed from a single IP address within a specific timeframe. To enable Composr's built-in rate limiting, add the following to your _config.php file:
Static caching drastically improves performance by serving pre-generated pages to bots and guests. This works because these users typically don't require dynamic content. To enable it:
Go to the Installation Options editor (yourbaseurl/config_editor.php). You will need your maintenance password.
Activate the static cache option.
Composr intelligently determines what to cache, and you can further control this via options within the Installation Options. Be aware that enabling static caching may disable eCommerce features for guests unless specifically configured.
If you're having issues with notifications, here are some troubleshooting steps:
Check Email Logs: View the email log (Admin Zone > Audit > E-mail queue/log) to see what notifications have been sent.
Use the SU Feature: Impersonate a member using the SU feature (described in the "Testing access and privileges" tutorial) to view their notification settings and confirm they are set up correctly.
Enable Carbon-copy Email: Configure a "Carbon-copy e-mail address" in the configuration settings to receive copies of all outgoing emails, including notifications. This helps you monitor email delivery.
Verify System Scheduler: Ensure the system scheduler is configured correctly if members are not receiving digest emails.
Check Digest Settings: Confirm that "Enable digest notifications" is enabled in the Messages configuration settings.
Review "Safety listing limit": If a notification has too many categories, members might not see the full selection tree. Adjust the "Safety listing limit" in the configuration settings if necessary.
Can I control which notifications members receive?
Answer
Yes, you can control notification settings through two mechanisms:
Notification Defaults: You can set default notification preferences for all members. You can enable or disable specific notifications and choose the delivery method (Admin Zone > Setup > Notification defaults).
Notification Lock-down: You can force members to receive or prevent them from receiving certain notifications (Admin Zone > Setup > Notification lock-down). This allows you to enforce specific notification policies and manage email volume.
What notification options are available to members?
Answer
Members can choose from a wide range of notifications, including:
Content Updates: Notifications for new or updated content, such as news articles, forum posts, and gallery images.
Private Messages: Alerts for new private messages received.
Friend Requests: Notifications for new friend requests.
Administrative Actions: Alerts for actions taken by site administrators, such as account approvals or content moderation decisions.
Members can choose to receive notifications via:
Email: Notifications sent directly to their email address.
Digest Email: Combined summaries of activity sent in batched emails. This requires the system scheduler and the digest e-mails configuration option to be enabled.
Private Topics: Notifications delivered as private forum topics.
SMS: Notifications sent as text messages (requires configuration and incurs costs).
Web Notifications: Real-time alerts displayed within the Composr interface.
Can I share content like news and banners across the M.S.N.?
Answer
Yes, you can share news by placing it on the central site and using RSS blocks on satellite sites to display it. Banners can be shared by adding them to the central site and configuring satellite sites to use the central site's banner.php script.
What are Composr Clubs and how are they useful for subcommunities?
Answer
Clubs are special usergroups in Conversr (Composr's forum system) designed for creating subcommunities. They come with their own dedicated forums and are managed by members, taking pressure off site staff.
Key features:
No special permissions by default, simplifying permission management.
Members can join and leave like regular usergroups.
Post history tracks changes made to forum posts, including edits and deletions. This feature helps monitor for inappropriate edits or attempts to cover up spam or rule violations. Staff can review the history, restore deleted content, or even permanently erase it.
Yes, Composr provides various moderation tools for managing forum content. Moderators can edit or delete posts and topics, move topics between forums, close or open discussions, and validate content submitted by users who require approval. These are done in an actions dropdown on a topic, or through buttons on individual posts.
What is the "black hole" technique and how does it work?
Answer
The "black hole" technique involves adding hidden fields to forms. While invisible to human users, bots often detect and fill these fields, revealing their nature. Composr uses this information to flag and block suspected spam submissions.
You can report spam using the "report this" link or "report" (forum post button) feature. This alerts staff to the issue, allowing them to investigate and take appropriate action, such as deleting the spam, warning the user, or banning them. It also creates a Support Ticket between the reporter and staff in case the staff need further information.
RBLs are third-party lists that track IP addresses associated with spamming activity. Composr can be configured to consult these lists and block or flag requests from suspicious IPs. However, relying solely on RBLs may lead to false positives, as some lists are overly broad.
CAPTCHAs are tests designed to differentiate between human users and bots. Composr's unique CAPTCHA method uses CSS and JavaScript to generate images or audio challenges that are difficult for bots to solve. While effective, some spammers use human workers to bypass CAPTCHAs, leading to the need for additional anti-spam measures.
Composr offers several tools and techniques to combat spam, including:
CAPTCHA: A visual or audio test that humans can easily pass but bots struggle with. This helps prevent automated spam submissions.
Heuristics: If Composr thinks an action is spam based off of configurable criteria, it can either flag the content for validation, block the attempt, or ban the IP address outright.
Public block lists: Composr can utilize the Stop Forum Spam system or other block list systems to identify and block known spammers based on IP addresses, usernames, and email addresses.
Link posting restrictions: Disallowing links in member profiles for users with no posts and adding "nofollow" attributes to links discourages spammers seeking backlinks.
Black hole fields: Hidden form fields that should remain empty. Bots often fill these in, allowing Composr to identify them.
Project Honey Pot integration: A system that places hidden links on pages, attracting and identifying spam bots.
Content/post reporting: Users can report spam, enabling staff to take action.
Guest posting limitations: Restricting guest permissions raises the bar for spammers.
Advanced techniques: Developer addons like "antispam_question" or probation systems provide additional layers of protection.
What is the "Sitemap" in Composr, and how is it used?
Answer
The Sitemap is a hierarchical representation of your website's content, including zones, pages, categories, and entries. Composr generates the Sitemap dynamically and uses it for various purposes:
Generating menus.
Creating the user-facing sitemap page.
Generating the XML Sitemap for search engines.
Providing a visual representation of your website structure in the Sitemap editor and Permissions tree editor.
You can edit the sitemap under Admin Zone > Structure > Sitemap editor.
Can I change the URL scheme after my website is already live?
Answer
Yes, you can enable or change a URL scheme on an existing website. Old URLs will redirect to the new format, ensuring that your SEO isn't negatively impacted. The canonical URL will also be specified in your website's HTML, further protecting your search rankings.
