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Learn how to deploy Poweradmin on AlmaLinux VPS! Below is a complete, production-ready, step-by-step guide for how to deploy Poweradmin on AlmaLinux VPS. What is Poweradmin? Poweradmin (PowerAdmin) is an open-source, web-based DNS management interface for PowerDNS. What it does PowerAdmin provides a graphical UI that allows administrators and users to manage DNS zones and records stored in a PowerDNS backend (typically MySQL or PostgreSQL) without using the command line. Core features Create, edit, and delete DNS zones Manage DNS records (A, AAAA, MX, CNAME, TXT, SRV, NS, etc.) User and permission management (admin vs regular users) Zone templates for fast provisioning Supports PowerDNS Authoritative Server Works with MySQL or PostgreSQL backends Lightweight PHP application (no daemon) What it is not ❌ Not a DNS server itself ❌ Not a registrar or domain reseller ❌ Not a full hosting control panel PowerAdmin only manages DNS data that PowerDNS serves. Typical use cases Managing authoritative DNS for VPS and dedicated servers Replacing manual BIND zone editing Internal DNS management for infrastructure Hosting providers (including multi-tenant DNS environments) PowerDNS deployments behind an API or reverse proxy Architecture overview Browser ↓ PowerAdmin (PHP) ↓ MySQL / PostgreSQL (DNS records) ↓ PowerDNS Authoritative Server Why people use PowerAdmin Simple and fast compared to full control panels Open-source and self-hosted Direct database control over PowerDNS zones Ideal companion to PowerDNS API setups How to Deploy Poweradmin on AlmaLinux VPS This guide covers: Installing PowerDNS (Authoritative) Configuring MariaDB backend Setting up Poweradmin (web interface) Securing with firewall + SELinux considerations Optional: API, zone templates, DNSSEC, performance tuning Works on AlmaLinux 8 & AlmaLinux 9. 🧩 System Preparation sudo dnf update -y sudo dnf install epel-release -y sudo dnf install wget curl unzip -y 🗄 Install and Configure MariaDB Poweradmin requires a SQL backend. Install MariaDB server sudo dnf install mariadb-server mariadb -y sudo systemctl enable --now mariadb Secure MariaDB sudo mysql_secure_installation Choose: Remove anonymous users: Y Disallow remote root login: Y Remove test DB: Y Reload privileges: Y Create PowerDNS database + user mysql -u root -p <<EOF CREATE DATABASE powerdns; CREATE USER 'pdns'@'localhost' IDENTIFIED BY 'STRONGPASSWORD'; GRANT ALL PRIVILEGES ON powerdns.* TO 'pdns'@'localhost'; FLUSH PRIVILEGES; EOF 💿 Install PowerDNS Authoritative Server Enable PowerDNS official repo sudo curl -o /etc/yum.repos.d/powerdns-auth-50.repo https://repo.powerdns.com/repo-files/el-auth-50.repo For AlmaLinux, CentOS repo works. Install the server + MySQL backend sudo dnf install pdns pdns-backend-mysql -y 📝 Configure PowerDNS to Use MariaDB Backend Edit the configuration file: sudo nano /etc/pdns/pdns.conf Add the following: launchgmysql gmysql-host127.0.0.1 gmysql-dbnamepowerdns gmysql-userpdns gmysql-passwordSTRONGPASSWORD apiyes api-keyYOURSUPERSECRETAPIKEY webserveryes webserver-address0.0.0.0 webserver-port8081 Save and exit. 🏗 Import PowerDNS Database Schema mysql -u root -p powerdns < /usr/share/pdns-backend-mysql/schema/schema.mysql.sql 🚀 Start and Enable PowerDNS sudo systemctl enable --now pdns sudo systemctl status pdns 🌐 Install Web Server + PHP for Poweradmin Poweradmin requires Apache + PHP. dnf module reset php dnf module -y enable php:8.1 sudo dnf install httpd php php-mysqlnd php-gd php-xml php-mbstring php-json -y sudo systemctl enable --now httpd 📦 Download & Deploy Poweradmin cd /var/www/html sudo wget https://github.com/poweradmin/poweradmin/archive/refs/heads/master.zip sudo unzip master.zip sudo mv poweradmin-master poweradmin sudo rm -f master.zip Fix permissions: sudo chown -R apache:apache /var/www/html/poweradmin sudo chmod -R 755 /var/www/html/poweradmin ⚙️ Configure Poweradmin Installer Create config directory: sudo mkdir /var/www/html/poweradmin/inc sudo chmod 777 /var/www/html/poweradmin/inc (This will be secured after installation.) 🌐 Run Poweradmin Installer Visit: http://YOUR-SERVER-IP/poweradmin/install/ Poweradmin Browser Installation Step 1 Provide: Database Settings Host: localhost DB name: powerdns User: pdns Password: STRONGPASSWORD PowerDNS Settings Hostmaster: your email Primary nameserver: ns1.yourdomain.com Secondary nameserver(s) Add default zone templates: Yes Admin Login Creation Choose username/password. After installation, Poweradmin creates: /var/www/html/poweradmin/inc/config.inc.php 🔒 Secure Poweradmin Paths Remove installer: sudo rm -rf /var/www/html/poweradmin/install Restrict permissions: sudo chmod 755 /var/www/html/poweradmin/inc sudo chmod 640 /var/www/html/poweradmin/inc/config.inc.php sudo chown apache:apache /var/www/html/poweradmin/inc/config.inc.php 🔥 Firewall Configuration Allow DNS + HTTP traffic: sudo firewall-cmd --add-servicedns --permanent sudo firewall-cmd --add-servicehttp --permanent sudo firewall-cmd --reload If API port needed: sudo firewall-cmd --add-port8081/tcp --permanent sudo firewall-cmd --reload 🛡 SELinux Adjustments (If Enforcing) sudo setsebool -P httpd_can_network_connect 1 sudo chcon -t httpd_sys_rw_content_t /var/www/html/poweradmin/inc/ -R 🧪 Test PowerDNS Correct Operation Check service: systemctl status pdns Query locally: dig @127.0.0.1 yourdomain.com ⚙️ Optional: Enable DNSSEC In pdns.conf: gmysql-dnssecyes Initialize: pdnsutil create-zone yourdomain.com pdnsutil secure-zone yourdomain.com pdnsutil show-zone yourdomain.com 📦 Optional: Enable Zone Templates in Poweradmin Inside Poweradmin interface: Admin → Zone Templates → Add Templates help automate: A, AAAA, CNAME records NS/SOA structure Default TTLs ⚡ Optional: Performance Tuning for PowerDNS Increase cache size cache-ttl20 negquery-cache-ttl60 max-cache-entries2000000 Enable packet caching packetcacheyes packetcache-ttl3600 Restart: sudo systemctl restart pdns 🎉 Deployment Complete You can now access the PowerDNS Administration Panel: http://YOUR-SERVER-IP/poweradmin/ Use your admin login. Conclusion You now know how to deploy Poweradmin on AlmaLinux VPS.

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