Linux Server Administration
Management of physical, VPS and cloud servers across Ubuntu, Debian, RHEL/CentOS and AlmaLinux, with hardening and ongoing maintenance.
Linux & Infrastructure Specialists
Senior sysadmins keeping your Linux infrastructure running without surprises
Server administration, automation, databases and incident response for companies that depend on their infrastructure to operate. Direct technical communication, clear scope and practical fixes.
10+years of Linux server experience
5.0/5client feedback rating
890+client reviews across completed projects
$ systemctl status infra-core
● active (running) example output
$ uptime
load average: 0.14, 0.11, 0.09 — nominal
$ monitor --alerts --last=24h
Monitoring and alerting configured example
$
What We Do
End-to-end infrastructure support
We focus on systems, networks and operations, giving your infrastructure the attention required for stability, security and predictable performance.
DevOps & Automation
CI/CD, infrastructure as code, Ansible, Terraform, Docker and Kubernetes for repeatable deployments and cleaner operations.
Database Administration
Installation, tuning, backups and replication for MySQL, PostgreSQL, MariaDB and Redis, including disaster-recovery planning.
Security & Hardening
Firewalls, VPNs, security audits, certificate management and hardened server baselines designed for real production environments.
Monitoring & Observability
Zabbix, Prometheus, Grafana and proactive alerting to detect capacity, availability and security issues before users notice.
Incident Response & Server Recovery
Incident diagnosis, recovery assistance and support arrangements based on agreed availability and escalation requirements.
Why DMConf
Senior engineers, not a ticket call center
The person you speak to is the person capable of diagnosing and changing the infrastructure.
Stack we work with
Tools proven in demanding production environments.
Ubuntu / DebianRHEL / AlmaLinuxNginx / ApacheDockerKubernetesAnsibleTerraformPostgreSQLMySQLRedisZabbixPrometheusGrafanaBash / Python
✓
Direct access to who solves it
You talk directly to the engineer who works on your servers, with no unnecessary support tiers in between.
✓
Everything documented
Changes, procedures and automation stay documented so your infrastructure does not depend on tribal knowledge.
✓
Prevention over reaction
Monitoring, maintenance and capacity planning are used to reduce incidents rather than merely reacting to them.
✓
Clear, written SLAs
Response and resolution targets are defined according to the actual criticality of the environment.
How We Work
A simple process, no surprises
From first assessment to ongoing support, the workflow is designed to minimize operational risk.
01
Initial Audit
Review servers, networks, backups, monitoring and the main operational risk points.
02
Tailored Plan
Define scope, SLA, priorities and the order of work based on real business criticality.
03
Implementation
Apply hardening, monitoring and automation while minimizing disruption to production.
04
Ongoing Support
Agreed support coverage, maintenance, incident handling and recurring infrastructure improvements.
Trust
What clients say about our work
Real feedback from completed server administration, migration, security and troubleshooting projects.
★★★★★
Urgent Linux Apache Server Repair
“Matias found out about the problem with the server quickly and we are back online.”
Muhammad QayyumClient feedback · completed project
★★★★★
System administration
“As always perfect. highly recommended!”
Teow GuanClient feedback · completed project
★★★★★
Fix DKIM/DMARC Across All Domains
“Very Powerful in servers”
FahadClient feedback · completed project
★★★★★
Upgrade Ubuntu 20 to 22
“Super work. Good person”
SameerClient feedback · completed project
★★★★★
Power BI to Supabase SSL issue
“Un auténtico profesional! Rápido y efectivo. Lo volvería a contratar mil y una vez.”
RubénClient feedback · completed project
★★★★★
Server setup
“Smart and quick server admin. Thanks for your work”
SiddharthClient feedback · completed project
★★★★★
IP cPanel Work
“Matias is a godsend. The best SysAdmin in the world.”
StephenClient feedback · completed project
★★★★★
Sysadmin Tasks
“Experto en solusvm y nginx”
ChristianClient feedback · completed project
★★★★★
Recover root password
“Just excellent. Reactive and efficient”
DidierClient feedback · completed project
★★★★★
Fix WordPress 500 Error
“Excellent work, a very skilled and conscientious freelancer.”
ObenClient feedback · completed project
★★★★★
CentOS 7 update
“Always good help with server configuration and upgrades”
GreenClient feedback · completed project
★★★★★
Ubuntu Server
“excellent freelancer! I would love to hire him again in my future projects!”
TonyClient feedback · completed project
Does your infrastructure need a team that actually responds?
Schedule a diagnostic call and identify the operational and security risks that deserve attention first.
Contact
Let's talk about your infrastructure
Email[email protected]
LocationBuenos Aires, Argentina · Remote support nationwide
Support coverageEmergency and ongoing support by arrangement
Prefer something direct?
Email us a short description of your current infrastructure — number of servers, critical services and the problem you want to solve — and we can start from there.