A paid infrastructure assessment with a clear remediation plan. I review your Linux and Windows systems, monitoring, backups and access paths, then help you implement the improvements that matter.
For small businesses, software agencies and IT providers that need specialist infrastructure support without hiring a full-time administrator.
Scope, access, price and delivery date are agreed before work starts. Diagnostics are read-only where practical. Production changes, restore drills and migrations need a separate scope and maintenance window. An assessment does not certify compliance or guarantee recovery.
Practical services for mixed infrastructure: investigate the failure, make the change reproducible, and leave an operating record the next person can use.
Turn routine setup, updates and configuration into repeatable steps. You receive maintainable automation, change records and operating instructions—not a system only one person understands.
Ansible, Git, Bash and PowerShell; Linux and Windows administration over SSH or WinRM.
Check whether important services are available, storage is running out and alerts reach the right person. You receive meaningful checks, clear escalation steps and evidence to help investigate recurring failures.
Zabbix, LibreNMS, Grafana and Wazuh; service, agent, log and storage diagnostics.
Review backup coverage, storage capacity and retention. Identify recovery gaps and agree isolated restore tests. You receive recovery instructions and a clear record of what has actually been tested.
ZFS, libvirt/KVM, Proxmox and Proxmox Backup Server; snapshots, replication and restore planning.
Trace why staff can reach one system but not another. Review connectivity, sign-in dependencies and access permissions. You receive an access map, scoped corrections and a rollback plan.
DNS, routing, OpenVPN, OPNsense, SSH keys, LDAP, Active Directory and SSO.
Check how each application uses its security certificate, automate renewal where suitable and verify the certificate users actually receive. You receive renewal instructions, deployment checks and expiry alerts.
HTTPS/TLS, Let’s Encrypt, DNS challenges, reverse proxies and application-specific certificate bindings.
Investigate slow mailboxes, failed application connections and database access. Plan changes around backups and acceptance checks, with unresolved risks recorded rather than hidden.
Postfix/Dovecot, scoped mbox-to-Maildir migrations, Nginx/Caddy, MariaDB and ODBC connectivity.
Bring assets, ownership, operating instructions and change history together. Your team receives readable documentation and an inventory it can maintain after handover.
GLPI agents and asset inventory; Git-backed incident, change, project and operating records.
Set up collaboration, shared files, knowledge bases or service management with clear responsibilities, access controls and backup arrangements. Phone-system enquiries can also be scoped separately.
Nextcloud, BookStack, Jitsi and GLPI; existing 3CX service enquiries, with licensing and carrier requirements agreed separately.
Agree the systems and questions; review evidence; deliver findings and priorities.
A separately quoted remediation sprint with backups, rollback and acceptance checks.
Defined maintenance hours and escalation boundaries, or documented handover to your team.
Remote work in English, German or Spanish, coordinated from Central Europe. You retain your configuration, automation and runbooks. Support hours and response commitments are agreed in writing; 24/7 coverage and local on-site support are not assumed.
Email: support@source-admin.com
Timezone: Central Europe (CET / CEST)
Response time: within 24 hours during business days
Tell me what your business depends on, what is not working and what you want to improve. You do not need a complete technical inventory to start the conversation.