17+ years keeping servers, networks and business systems running. Practical writing about real incidents.
A systems approach. From the first packet to a verified recovery.
Build a message timeline through Exchange, a gateway and antispam: SMTP, queues, Message-ID, NetworkMessageId, recipient branches and mailbox delivery. Includes commands and…
Read the story ↗Investigate memory grants and RESOURCE_SEMAPHORE: holders, waiters, execution workspace, spills and report concurrency. SQL diagnostics, a PowerShell collector, diagrams, an isolated lab…
Read the story ↗Move from an ordinary service account to a gMSA: discovery, KDS, password retrievers, permissions, SPNs, diagnostics and rollback. Includes PowerShell, pilot-service source,…
Read the story ↗Build five MikroTik zones: addressing, access/trunk, PVID, bridge VLAN filtering, management protection and routing policy. Two devices, a recovery port, positive and…
Read the story ↗Build a verifiable Sysmon → WEF → Wazuh route: process context, RMM, LSASS, task auditing, queues and event loss. Eight custom rules,…
Read the story ↗Five levels of mixed-infrastructure protection: a warehouse operation, separated authority, network rules, server checks, logging and recovery. Windows/Linux commands, a lab test…
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From a focused investigation to a complete infrastructure project. Clear scope, verifiable results.
$ investigate --from-evidence
10–15 minutes on Telegram: goals, constraints and desired outcome.
Scope, milestones and price. A written service agreement.
Agreed changes, checkpoints and milestone-based payment.
Verify useful operation. Receive a report and recommendations.
I'm delighted to share my wonderful experience working with Maksim as a systems administrator through Avito. He left an unforgettable impression with his professionalism and his ability to solve technical problems.
When I asked Maksim to set up my system, I could tell right away how sharp and experienced he was. He helped me set up my network so it runs without failures and is protected against outside threats.
Maksim also has excellent communication skills, which matters a lot for understanding what a client actually needs. He listened carefully and explained every technical detail about my system flawlessly.
I sincerely recommend Maksim as a systems administrator. I'm very happy with his work and the quality of service, and I wouldn't hesitate to come back to him again in the future.
Maksim is simply a wonderful person and a top-notch professional! I reached out with a computer issue, he helped quickly, everything was clear and well organized. It's a genuine pleasure dealing with such a polite and pleasant expert — I'll be coming back and recommending him to everyone. Reach out to him without a second thought — he'll help, explain everything, and won't pad the bill with anything unnecessary. We need more people like him in every field. Thank you so much again!
Thank you for the quick response to our server problem! I'll be recommending you to people I know!
Digital safety for the people we care about, shared knowledge and support for those helping others.
Tell me about the challenge. We’ll start with a conversation and a clear plan.
@maksimshap ↗Remote across Russia. On-site: Pyatigorsk, Yessentuki, Kislovodsk, Nalchik and Stavropol.
