Turkey (Türkçe) 
VDS Operating System Selection Guide
Strong integration with the CloudLinux ecosystem; the RHEL derivative often chosen by cPanel hosting providers.
A hosting stack optimised for the cPanel + CloudLinux + Imunify360 trio.
At the order step, choose the AlmaLinux 9 template.
| Version | AlmaLinux 9 (Emerald Puma) |
|---|---|
| Base | RHEL 9 clone |
| Package manager | dnf |
| Kernel | 5.14 |
| Architecture | x86_64 |
| Init | systemd |
| LTS / support | 2032 |
| Container | Podman, Docker CE |
The recommendations below are for general guidance; actual needs vary with traffic and application architecture.
| Use | Resources | Note |
|---|---|---|
| DirectAdmin lightweight hosting | 2 vCPU · 2 GB RAM | For a few sites |
| cPanel production | 4 vCPU · 4–8 GB RAM | Multiple accounts |
| Imunify360 + LiteSpeed | 4+ vCPU · 8 GB RAM | Security scanning uses CPU |
| cPanel | ✓ Supported |
| Plesk | ✓ Supported |
| DirectAdmin | ✓ Supported |
| Docker | ✓ Supported |
| Nginx | ✓ Supported |
| Apache | ✓ Supported |
| LiteSpeed | ✓ Supported |
| CloudLinux | ✓ Supported |
AlmaLinux 9 is a Linux distribution release published in 2022. Kernel/base: 5.14. Default components: SELinux, firewalld, dnf, systemd. In a VDS environment, AlmaLinux 9 is delivered as a virtual machine with root/Administrator access and IPv4/IPv6 support, through SistemDC automatic provisioning or the KVM console. The support window means security patches are available until 2032, which makes hosting costs predictable. At the KVM hypervisor layer, dedicated vCPUs and NVMe I/O deliver consistent performance without noisy neighbours. On an AlmaLinux 9 VDS, the hostname, SSH key and package updates can be automated with cloud-init (on supported templates) or the SistemDC post-install script. For disk I/O, keep the NVMe queue depth high; for PostgreSQL/MySQL the vm.swappiness=10 sysctl setting is recommended. Logrotate and journald prevent the disk from filling up. Monitoring: a lightweight setup with node_exporter + Prometheus or Netdata. If you use containers, after a dnf-based Docker/Podman installation run containers as non-root and define cgroup v2 limits. SistemDC's Istanbul POP delivers low jitter for traffic within Turkey, without carrier-grade NAT.
Choose AlmaLinux 9 if…
When? A RHEL clone alternative
When? DevOps without a panel
When? Minimal resources
Typical use cases for an AlmaLinux 9 VDS: shared/reseller hosting, LiteSpeed + CyberPanel alternatives, Imunify360, KernelCare. Thanks to the Turkey location, local users get a fast TTFB with 5–15 ms ping domestically. On Ryzen VDS plans, high single-core GHz is preferred for game servers and Discord bot workloads. With SistemDC NVMe disks, random-I/O-heavy database queries see 5–10x lower latency than on an HDD VDS. Under heavy traffic the Stormwall DDoS filter kicks in automatically at the network layer. For CDN origin, reverse proxy caching and static asset delivery, optimise the Nginx/Apache configuration on AlmaLinux 9 with HTTP/2 and Brotli compression; for users in Turkey, the origin location directly improves the SEO Core Web Vitals LCP score.
When ordering a SistemDC VDS, choose AlmaLinux 9 as the template. After the first login, run dnf update && dnf upgrade -y to update the packages. Hostname: hostnamectl set-hostname server.yourdomain.com. Time zone: timedatectl set-timezone Europe/Istanbul. Create a new user with sudo privileges and disable root SSH login. Verify the network configuration (netplan/NetworkManager/ifcfg). On low-RAM plans you can add a 1–2 GB swapfile. Installing Fail2ban is recommended.
SSH hardening: /etc/ssh/sshd_config — set PermitRootLogin no, PasswordAuthentication no (use an ED25519 key), with an optional port change. firewalld: firewall-cmd --permanent --add-service=ssh, --add-service=http, --add-service=https, firewall-cmd --reload. Leave SELinux in enforcing mode; use semanage when opening custom ports. Updates: dnf update -y && dnf upgrade -y — automate with a weekly cron. KernelCare (optional) applies kernel patches without a reboot. SistemDC Stormwall network-layer DDoS protection is standard. SSH guide: Linux SSH Security.
A Linux VDS environment has no physical sleep/hibernate mode; the virtual machine is kept running continuously by the hypervisor (N/A). Power management is provided on the server side with 24/7 active uptime; systemd sleep targets are disabled in the server templates.
In the VDS order flow in the SistemDC client area, open the Operating System step and choose the AlmaLinux 9 template. For general web/API, choose the Intel Xeon TR-VDS plans; for gaming, bots and high GHz, choose Ryzen VDS. For control panel installation, see our application setup guides for details. Category: VDS plans.
Is AlmaLinux 9 compatible with cPanel?
Yes; it is one of the officially supported operating systems.
What is the difference between AlmaLinux and Rocky?
Both are RHEL 9 compatible; AlmaLinux is common in the CloudLinux ecosystem.
What is the difference between AlmaLinux 9 and Rocky 9?
Both are RHEL 9 compatible; AlmaLinux is more common in the CloudLinux ecosystem.
Is cPanel supported on an AlmaLinux VDS?
Yes; cPanel/WHM officially supports AlmaLinux 9.
Has AlmaLinux 8 support ended?
8.x is still in use, but choose 9.x for a new VDS.
PHP version with dnf modules?
PHP 8.1/8.2 can be selected with AppStream modules; the remi repository is an alternative.
Turkey location · Stormwall DDoS · NVMe disk · 99.98% uptime SLA
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