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Mr.Sysadmin

Sys Admin

Administration of Windows/Linux, servers, networks, VPN, Microsoft 365, Exchange Online, PostgreSQL, and 1C. Hardware diagnostics and repair, network and printer configuration, information security, backups, system recovery, and automation via PowerShell/Bash. Hands-on experience troubleshooting complex hardware, software, and network issues.

Moscovo, RussiaAvailable for opportunitiesRemote / Hybrid / On-site
mett.fixa@gmail.com

About

I specialize in the administration, configuration, troubleshooting, and recovery of corporate IT infrastructure. My work covers Windows and Linux environments, servers, network equipment, VPNs, corporate email, databases, security systems, and backup solutions. Core Competencies: Servers and OS: Windows Server, Windows 10/11, Debian Linux, remote administration, RDP, system services, and event logs. Networking: TCP/IP, DNS, DHCP, NAT, routing,…

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pfSense, OpenVPN, Wi-Fi, SMB, and network resources. Microsoft 365: Exchange Online, Outlook, corporate email, Entra ID, SPF, DKIM, DMARC, and email delivery troubleshooting. Databases and Business Systems: PostgreSQL, 1C server, thin clients, installation, updates, and troubleshooting. Information Security: Dr.Web Enterprise, firewalls, log analysis, investigating suspicious activity, and access recovery. Backup: Backup strategy implementation, data recovery, and disk/file system management. Hardware: PC and laptop diagnostics and repair (SSD/HDD, BIOS/UEFI), as well as network and office equipment maintenance. Automation: PowerShell, Bash, administrative scripting, and monitoring of processes, network connections, and servers. Specialization: Complex troubleshooting, IT system recovery, user support, and ensuring the stable operation of corporate infrastructure.

Spoken languages

EnglishBasic

Technologies and tools

LinuxMicrosoft ExcelBashPostgreSQLSQLite
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