Linux server management, Ansible automation, hardening, continuous monitoring and cybersecurity protection. We operate on Denali servers and on any other platform. Real production experience, not just theory.
A control panel automates routine operations. A sysadmin solves problems before they exist.
Our sysadmins have been managing production servers for over twenty years: high-traffic e-commerce, enterprise management systems, distributed infrastructures, multi-datacenter environments. They know real problems because they have already solved them.
We are not specialists in a single tool. We manage networks, security, storage, automation, backup, and interconnection of heterogeneous systems. When a problem spans multiple stack layers, we do not stop at the symptom: we fix the cause.
We do not wait for a service to go down before acting. Continuous monitoring, regular backup tests and periodic configuration reviews identify risks before they become incidents. The best support is the one the customer never notices.
From routine management to complex integrations, we cover the entire operational life of a server infrastructure
Installation, configuration and maintenance of Debian and Ubuntu servers in production. Service setup (web, database, email, DNS, firewall), user and permission management, performance optimisation and troubleshooting. Support for both dedicated servers and KVM virtual machines.
We write custom Ansible playbooks to automate server provisioning, application deployment, update management and configuration propagation across fleets of machines. We eliminate repetitive manual operations, reduce human errors and make your infrastructure reproducible and documented.
Setup and management of monitoring systems (Uptime Kuma, custom solutions) for uptime, hardware metrics, service status, network latency and resource consumption. Alerting on configurable channels (email, SMS, webhook) with calibrated thresholds to reduce false positives and ensure timely responses.
Review and reinforcement of server security configuration: SSH access via cryptographic keys only, nftables/iptables firewall with minimal rules, disabling unnecessary services, Fail2ban setup, periodic log audits, CVE verification on installed packages and planned updates without downtime.
Design and implementation of comprehensive backup strategies: encrypted incremental backups with BorgBackup or Rclone, off-site replication to geographically separate storage, verified periodic restore tests. In an emergency, we manage the complete infrastructure restoration, minimising downtime.
Server optimisation for high-traffic and variable-load applications: WooCommerce, Magento, Prestashop, ERP, CRM and custom management systems. MySQL/MariaDB and PostgreSQL tuning, advanced caching with Redis and Memcached, job queue and async worker configuration. Vertical and horizontal scaling based on actual requirements.
Design and implementation of private networks between distinct systems: site-to-site VPN with OpenVPN or WireGuard, bridging between different datacenters, integrations between on-premise and cloud platforms, advanced routing and split-horizon DNS. We manage mixed Linux/Windows environments and infrastructures distributed across multiple providers.
Active mitigation of DDoS attacks at network and application level, WAF (Web Application Firewall) configuration, IDS/IPS intrusion detection systems, forensic analysis after a compromise. We also manage protection of web applications, databases and storage systems from unauthorised access and ransomware.
Our sysadmin services are available regardless of where your infrastructure is hosted
For customers with Denali VPS or dedicated servers, we offer integrated management packages that include sysadmin operations, planned updates, monitoring and ongoing support. The team that knows the infrastructure works directly on your server.
We also manage servers hosted on other platforms. Our intervention does not necessarily require migration: we work on the existing infrastructure, provided quality is equally guaranteed, preserving configurations and minimising operational risk.
The tools we use daily in production
Reference operating system for all production server environments. Preference for Debian Stable for maximum reliability, Ubuntu LTS for cloud and container environments.
Infrastructure automation: provisioning, configuration, deployment and update management across server fleets. Git-versioned, idempotent and documented playbooks.
Open source multiserver hosting management panel — a core value for us. Configuration, customisation and integration with billing systems. Multi-server cluster management and advanced DNS setup.
Kernel-level firewall and automatic attack blocking systems. Granular rules for each exposed service, rate limiting, geo-blocking and brute-force protection.
Encrypted private networks to interconnect datacenters, offices and cloud. WireGuard for performance and simplicity, OpenVPN for compatibility and flexibility in enterprise environments.
Complete infrastructure monitoring: hardware metrics, service status, latency, logs. Centralised dashboards, configurable alerting and performance history for capacity planning.
Encrypted incremental backups with deduplication (BorgBackup) and multi-cloud remote storage synchronisation (Rclone). Compatible with S3, Backblaze B2, SFTP and object storage providers.
Gestione e personalizzazione del pannello di fatturazione/provisioning. Automazioni, hook, moduli custom e integrazione con provider DNS, registrar e gateway di pagamento.Management and customisation of the billing/provisioning panel. Automations, hooks, custom modules and integration with DNS providers, registrars and payment gateways.
Cybersecurity is not a product to buy: it is a continuous process that requires constant expertise and attention
Mitigation at network and application level: upstream datacenter filters, adaptive firewall rules, rate limiting and blackholing of malicious sources. For application attacks (HTTP flood, Slowloris), we configure WAF and specific middleware on the web server.
Configuration of Web Application Firewall (ModSecurity, Nginx WAF) to block SQL injection, XSS, CSRF, path traversal and known exploits. Access log analysis to identify suspicious patterns and malicious bots. Proactive updating of CMS and vulnerable dependencies.
Administrative access hardening, multi-factor authentication where possible, network segmentation to limit lateral movement. Encrypted backups on isolated storage as the last line of defence against ransomware, with periodically verified restore tests.
In the event of a compromise, we offer forensic analysis to identify the attack vector, the extent of the breach and the actions taken by the attacker. Service restoration from clean backups, malware removal and closure of exploited vulnerabilities to prevent recurrence.
Frequently asked questions about Denali sysadmin services
No. We work on any Linux server (Debian, Ubuntu) regardless of the hosting provider. Our intervention does not necessarily require migration: we work on the existing infrastructure, provided quality is equally guaranteed, accessing via SSH with keys provided by the customer.
We install a monitoring agent on the customer's server (Uptime Kuma or equivalent solution) that collects real-time metrics and sends them to our centralised system. In case of anomaly — downtime, CPU at maximum, nearly full disk, critical log errors — our team receives an immediate alert and acts. The customer can also receive notifications directly, via email or preferred channel.
A standard hardening intervention includes: disabling direct root login via SSH, configuring access exclusively with cryptographic keys, installing and configuring Fail2ban, reviewing and reducing open ports with nftables/iptables, disabling unnecessary services, verifying permissions on sensitive files and directories, configuring automatic security updates, reviewing system logs for traces of previous anomalous access, blocking known and blacklisted malicious IPs. A detailed report of the intervention is provided upon completion.
Yes, it is one of our areas of greatest experience. We optimise the LAMP/LEMP stack for WooCommerce, Magento, Prestashop and custom applications: MySQL/MariaDB tuning for intensive queries, Redis configuration for session and object cache, queue management with Beanstalkd or Redis Queue, PHP-FPM configuration with dedicated pools to separate processing. We also manage scaling during peak periods (sales, campaigns) with live server resource upgrades.
We follow Debian/Ubuntu security bulletins and CVEs for major packages (kernel, OpenSSL, Apache, Nginx, PHP, MySQL, etc.). For critical vulnerabilities (CVSS ≥ 9.0), we act proactively even without a stable update available, through temporary mitigations. For routine updates, we agree a maintenance window with the customer to minimise impact on production services.
Yes. We offer monthly support packages calibrated to customer needs: from simple monitoring with alerting to full operational management with defined SLAs. Ongoing contracts include included intervention hours, proactive monitoring, planned updates and priority support. Contact us to discuss the options best suited to your infrastructure.
Do you have a specific question about your infrastructure? Our team of sysadmins is available.
Contact us