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.
Why are my searches slow, and how can I improve search speed?
Answer
Slow searches can occur when dealing with large amounts of content. Here are some workarounds and solutions:
MySQL timeout setting: For MySQL 5.7+, set a query timeout to prevent searches from locking up your database. Composr automatically sets this, but you can configure it manually if needed.
Use InnoDB tables: Switching to InnoDB tables in MySQL can prevent slow queries from affecting other users on your website. Note that InnoDB is not officially supported by Composr yet.
Enable the fast custom index: As mentioned earlier, the fast custom index is optimized for handling large datasets and filtered searches, potentially leading to significant speed improvements.
How does the search engine handle different languages?
Answer
Composr's fast custom index supports multiple languages. Content is indexed based on its translated version, ensuring that you get relevant results even when searching in a different language.
Quoted phrases allow you to search for an exact sequence of words. For example, searching for "red apple" will only return results containing that exact phrase. Keep in mind that enabling quoted phrases can increase disk space usage.
Stop words are common words (like "the", "a", "is") that are ignored by the search engine because they add noise and don't contribute to the meaning of the search query. You can customize the list of stop words for the fast custom index. See the search tutorial for more information.
