Featured Sites: A-Z Index

H


Newest 10 Entries

Question What is the Composr Repository?
Answer The Composr repository is a user-friendly representation of Composr's data, which is typically stored in a database and on the filesystem. It presents the data in an easily accessible format using the JSON standard and can be accessed as a folder on your computer via WebDAV.
Question What is Commandr?
Answer Commandr is a command-line interface designed for experienced system administrators who prefer using a command line over a GUI. It supplements the Composr Admin Zone, allowing you to execute commands in the form of:
  • PHP code (prefix :)
  • SQL database queries (prefix @) (queries must be executed one at a time; semi-colon separation is not supported)
  • Shell commands (prefix #)
  • Commandr-code scripts (store in the Composr filesystem's bin directory, and just type the name of the script)
  • Commandr-code commands (no prefixes)

You can access Commandr via the Admin Zone > Tools > Commandr or using the Commandr button in the footer.
Question Are there alternative chat solutions that integrate with Composr?
Answer Yes, you can integrate third-party chat solutions with Composr. For example, CometChat is a commercial chat system that provides a Composr integration. You can also leverage video chat services like Talky, Jitsi, or appear.in by embedding links within your chat templates. For sales-chat needs, consider integrating a dedicated live chat platform like Comm100.
Question Are there any limitations to the Composr Chat system?
Answer While the Composr Chat system provides robust chat and IM features, it does have some limitations. Currently, it does not support video chat, sales-focused chat features, desktop app integration, or optimal performance for very high volumes of concurrent users. Additionally, it is only near real-time as Composr queries for new messages using AJAX at a set interval.
Question Are there any safety guidelines for younger users?
Answer It's crucial to emphasize safety, especially for younger users. Encourage them to follow these guidelines: never arrange to meet anyone from a chatroom in person, be cautious about sharing personal information, and report any suspicious behavior to moderators.
Question Can I download chat logs?
Answer Yes, you can download logs of any chat conversation. Simply navigate to the chatroom, click on the "Download chat logs" link, specify the desired date/time range, and the system will generate a downloadable log file for you.
Question How can I moderate the chatrooms?
Answer Composr offers a range of moderation features. Moderators can edit or delete messages, ban disruptive users, and delete entire chatrooms if necessary. Inline moderation links are available within chatrooms for quick actions, while the Admin Zone provides comprehensive moderation tools for managing chat content and user behavior.
Question What is Chatcode and how can I use it?
Answer Chatcode is a system of simple commands that you can embed within your chat messages to perform advanced actions. These actions include sending private messages to specific users within a chatroom, interacting with automated bots, sending chatroom invitations, and even creating new chatrooms.
Question How does the chat system work?
Answer The chat system utilizes AJAX technology, enabling dynamic updates without requiring page reloads. It includes a "Chat Lobby" where users can view available chatrooms and manage their friend lists for instant messaging. Users can join chatrooms to participate in group conversations or engage in private conversations with friends.
Question What is the Composr Chat system?
Answer Composr Chat is a feature built into the Composr CMS that provides both chatrooms and instant messaging capabilities. It offers real-time, text-based communication for users on your website.

Top 10 Entries

Question What is the purpose of "confirmed" and "non-confirmed" sessions?
Answer Composr distinguishes between confirmed and non-confirmed sessions for added security:
  • Confirmed: When you actively log in with your credentials.
  • Non-confirmed: When you return to the site and are automatically logged in via cookies.

You can configure zones to require confirmed sessions, preventing access from cookie-based logins alone. The Admin Zone uses this by default.
Question How can I enhance the security of my Composr installation on shared hosting?
Answer Shared hosting environments can be inherently less secure. Here are some tips:
  • Choose a Secure Host: Opt for hosts that offer suEXEC and open_basedir for better account isolation.
  • Test Security: Verify the host's security measures with the provided filesystem_browser.php script.
  • Restrict _config.php: Remove world-writable permissions from _config.php after installation.
Question How does Composr protect against Cross-Site Scripting (XSS) attacks?
Answer Composr utilizes multiple layers of defense against XSS attacks:
  • HTML Filtering: Configurable levels of filtering prevent malicious script injection.
  • Content Security Policy (CSP): Restricts the sources from which scripts and other resources can be loaded.
  • Input Sanitization: Data is sanitized before being processed to prevent malicious code execution.
  • Output Encoding: Data displayed to users is properly encoded to prevent interpretation as active code.
Question What are the different types of security alerts in Composr?
Answer Composr has a variety of hack-attack codenames that trigger security alerts and logging. Some common examples include:
  • DODGY_GET_HACK: Suspicious URLs with potentially harmful characters.
  • EVIL_POSTED_FORM_HACK: Possible CSRF attempts via malicious form submissions.
  • SCRIPT_UPLOAD_HACK: Attempts to upload PHP scripts, potentially malicious.
  • DOWNLOAD_PRIVATE_URL_HACK/TRY_TO_DOWNLOAD_SCRIPT: Attempts to download sensitive files.
  • BRUTEFORCE_LOGIN_HACK: Repeated failed login attempts.
  • SQL_INJECTION_HACK: Attempts to exploit SQL queries for data extraction.

You can customize alert handling for each type in data_custom/xml_config/advanced_banning.xml (Admin Zone > Security > Configure advanced banning).
Question What are some tips for secure website maintenance?
Answer
  • Avoid FTP: Use secure alternatives like SFTP or SSH for file transfer.
  • Secure Email: Enable SSL for IMAP and POP3 email protocols.
  • Strong Passwords: Use unique and complex passwords for different services.
  • Secure Computers: Keep your own devices patched and secure.
  • Maintenance Password: Remove the maintenance password from _config.php when not in use.
Question What are the main security features of Composr?
Answer Composr has a robust set of security features to protect your website, including:

Passwords:
  • Visual representation of password quality and enforcement of complexity rules.
  • Password expiry and prevention of re-use.
  • Secure password hashing, even if the database is compromised.
  • Temporary passwords for staff setup.

Login Restrictions:
  • Two-factor authentication via IP address approval.
  • IP address banning, including wildcard banning.
  • Session locking to IP addresses.
  • Configurable session expiry times.
  • Ability to prevent privileged actions from auto-logged in sessions.
  • Optional member approval process.

Auditing Systems:
  • Comprehensive audit logging of administrative actions.
  • Logging of user actions and IP address history.
  • Tools to analyze audit logs.
  • Failed login logging.
  • Hack attack detection, logging, and banning.
  • Email notifications for changes to user credentials.

Framework Security:
  • Protection against CSRF attacks.
  • Click-jacking prevention via CSP implementation.
  • Secure coding standards and scanning techniques.
  • Configurable HTML filtering to prevent XSS attacks.
  • Secure code modularization standards.

Other features:
  • Granular privileges and access permissions.
  • Content submission validation process.
  • Rootkit detection system.
  • Spam prevention systems.
  • Web application firewall rules.
  • Moderation systems.
Question 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.
Question 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.
Question What are quoted phrases and how do they work?
Answer 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.
Question How do stop words affect search results?
Answer 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.