Guides tagged “waf”
Step-by-step MdmHost guides about waf, sorted A-Z.
9 guides
Configure ModSecurity (Web Application Firewall) in Plesk
Enable ModSecurity in Plesk, choose a rule set, use detection-only mode, find blocked requests in logs, and switch off rules that cause false positives per server or domain.
Configure ModSecurity in WHM: vendors, rules and per-domain control (root guide)
Set up ModSecurity on a cPanel server as root: choose a rule vendor, enable or disable rules, read hits in ModSecurity Tools and handle false positives per domain.
Enable or disable ModSecurity for a domain in cPanel
Learn what ModSecurity blocks, how to switch it off for one domain to test a false positive, and why you should turn it back on and fix the cause instead.
Fix 403 Forbidden errors caused by ModSecurity (Imunify360 WAF)
Recognise when the Imunify360 web application firewall blocks a legitimate form or admin action with a 403 error, collect the details and get the rule fixed.
ModSecurity with the OWASP Core Rule Set in WHM: setup and false positives
Enable the OWASP CRS vendor for ModSecurity in WHM, find the rule ID behind a 403 error in the audit log, and disable that rule for one site or server-wide.
Protect your website with Cloudflare WAF custom rules
Use Cloudflare WAF custom rules to block bad countries, bots and attack paths, challenge visitors to wp-login.php, and allow your own IP, before traffic reaches your hosting.
Read the Imunify360 Incidents log to understand attacks (root guide)
Use the Imunify360 Incidents tab and CLI as root to see brute-force attempts, WAF hits and blocked IPs, spot patterns, and decide when to whitelist, block or tune rules.
Stop brute force and floods with Cloudflare rate limiting rules
Create Cloudflare rate limiting rules that slow down login brute force, search and checkout abuse, and small HTTP floods, with sensible thresholds and testing tips.
What is a firewall? Network, host and web application firewalls explained
Learn what a firewall does, how network, host-based and web application firewalls (WAF) differ, and which ones protect a cPanel server, VPS or website.
Browse by topic
- Getting startedYour first hour with a new server: access, logins and basics.69 guides
- cPanelFiles, databases, email, domains and every cPanel tool, step by step.37 guides
- WHM & resellingWHM, packages, reseller accounts, WHMReseller and running a hosting brand.49 guides
- WordPressInstall, secure, speed up, migrate and fix WordPress sites.40 guides
- Email & webmailMailboxes, webmail, forwarders, spam filters and email delivery.37 guides
- DomainsRegistering, transferring and managing domains and nameservers.20 guides
- SSL certificatesFree AutoSSL, Let's Encrypt, paid certificates and HTTPS.19 guides
- CloudLinuxCloudLinux setup and use: LVE limits, CloudLinux Manager, CageFS and PHP/Node.js selectors.31 guides
- LiteSpeedLiteSpeed Web Server, LSCache and the LiteSpeed Cache plugin: install, settings and tuning.30 guides
- Imunify360Malware scanning, firewall and proactive defence with Imunify360.23 guides
- SoftaculousInstall, update, clone and back up apps with Softaculous.23 guides
- WP SquaredcPanel's WordPress platform: sites, plugins, staging and backups.9 guides
- SitePadBuild and publish websites with the SitePad builder.9 guides
- SitejetDesign, edit and publish sites with the Sitejet builder.9 guides
- WHMResellerAlpha and master resellers with WHMReseller: install, setup and use.12 guides
- VirtFusionInstall, set up and manage VirtFusion: hypervisors, packages, servers and WHMCS integration.7 guides
- VirtualizorManage your VPS with Virtualizor: power, OS reinstall, VNC, IPs and backups.30 guides
- PleskWebsites, email, databases and settings in the Plesk panel.52 guides
- DirectAdminUsers, domains, email and reseller tools in DirectAdmin.40 guides
- WHMCSBilling, automation, products and client management with WHMCS.51 guides
- Control panelscPanel & WHM, Plesk, DirectAdmin and other panels on your VPS.106 guides
- SecurityKeys, passwords, firewalls and keeping a server patched.115 guides
- Networking & DNSIP addresses, reverse DNS, ports and traffic.34 guides
- Websites & appsWeb servers, WordPress, PHP, Node.js, SSL and app hosting.52 guides
- DatabasesMySQL, MariaDB, PostgreSQL, Redis and MongoDB on a VPS.64 guides
- Billing & accountInvoices, renewals, the client area and your account.9 guides
- TroubleshootingWhen something is not working: checks and fixes.68 guides
- Linux VPSSSH, packages, services and everyday Linux administration.70 guides
- Windows VPS & RDPRemote Desktop, Windows Server settings and Admin RDP tips.58 guides
- Docker & DevOpsContainers, Git deploys, automation, monitoring and backups.58 guides
Still stuck?
Ask MdmHost AI for a quick answer, or open a ticket and our team will take a look. We are here 24/7.