Hire the Best NetBSD Specialists

I help businesses resolve technical issues quickly, maintain system stability, and ensure smooth day-to-day operations. With over 10 years of experience in IT operations and incident management, I specialize in supporting production environments, troubleshooting backend issues, and delivering reliable technical support. In my role as a Level 1 IT Analyst, I have supported daily operations by managing incident queues, escalating critical issues, and maintaining SLA compliance. I am detail-oriented, responsive, and focused on minimizing downtime while ensuring consistent system performance. What I can do for your team: ✔ Handle support tickets via email, chat, or helpdesk platforms with clear and professional communication ✔ Monitor systems and shared mailboxes to detect and respond to alerts quickly ✔ Manage incidents and ensure timely resolution to meet SLA targets ✔ Troubleshoot issues by analyzing logs and identifying root causes ✔ Perform OS and application patching to maintain system reliability and security ✔ Support production environments and maintain operational stability ✔ Assist with basic infrastructure and day-to-day operational support ✔ Create and update documentation for recurring issues and solutions I am committed to delivering reliable support, clear communication, and high-quality service to ensure a smooth experience for both users and stakeholders. If you need a dependable technical support specialist who can proactively monitor, troubleshoot, and maintain your systems, I’d be happy to support your team.

✅ ABOUT ME: I am a Professional Full Time Freelancer. I have 8+ years of experience working on Windows/Linux server administration, CICD Devops ,AWS, Azure, windows/Linux troubleshooting, HyperV, proxmox servers, DNS records mapping, IIS, Domains and DNS records management, active directory, web server, webhosting, databases administrations and Mail server implementations, administrations for the mail services MS Office365, Gsuite, Zimbara and postfix . ✅ WHY ME? • Full-time Professional – I work on Upwork as a full-time freelancer. I take every project seriously and I am highly professional. • Highly responsive – I’ll always get back to you in less than 02 hours. • 100% Client satisfaction – I provide revisions and modifications even after our contract ends. • I provide accurate solutions and just as important, I can guide you to future prospects and put your project on the right track. • Good communication skills – You will find me very friendly to talk to. ========================================= #Windows Servers - clients #Linux Server - clients #Web servers - IIS, Apache, XAMPP, Nginx and Tomcat #Database Servers - MSSQL, ORACLE, MYSQL, MongoDB #Webhosting tools- Plesk, cPanel and CWP #Cloud services providers - AWS, Azure, GCP, Digital Ocean, World stream, OVH Cloud, Hetzner and Hosting raja #Hosting providers - Hostinger, Bluehost, Namecheap, Godaddy, Bigrock and Hostgator #Active Directory - setup, users creation, Centralized Management, policy creation and enhanced Security #Troubleshooting - L1, L2 Tools used ============== Github, SVN IIS,Apache,Tomcat,Nginx , Apache Kafka and Wordpress SSH, RDP, VNC, Anydesk, Splashtop and screen connect Mobaxterm,Toad,SSMS and Workbench Plesk,WHM,Cpanel Active Directory, IAM Servicenow, Redmine, Microsoft Teams and Slack Previous Clients Feedback: 1- "Karthik was an exceptional Upworker to deal with. He was responsive, communicative, knowledgeable and proactive at solving my urgent technical issue (my businesses website was down for an unknown reason) and I wouldn't hesitate to recommend him to anyone else seeking an excellent technical support specialist. Thank you Karthik!" 2- "Karthik went above and beyond to progress with a very difficult issue in a very short period of time. He is kind, hard-working, and knowledgeable." 3- "I recently had the pleasure of working with "Karthik Raja" on installing PMB Software project, and I must say it was an outstanding experience from start to finish. I highly recommend "Karthik Raja" to anyone seeking top-notch freelancing services." 4- "he provides ideas to solve our problems he is a best gem have ever met. He focused only in customer satisfaction. no negative reviews." So why wait? Just invite me to your job on Upwork so we can discuss how to make your project a success. Let’s work together and get it done!! Thanks, Karthik

I help businesses secure and optimize Linux infrastructure, firewalls, VPNs and virtualization environments. Specialized in: Network & Security: OPNsense | pfSense | Wazuh SIEM Wireless & Infrastructure: Ubiquiti UniFi Ecosystem Virtualization & Backup: Proxmox VE | Proxmox Backup Server VPN & Connectivity: WireGuard | OpenVPN | Cloudflare Tunnel SysAdmin & DevOps: Linux Servers | Docker | Reverse Proxy Core Services: Network Troubleshooting | Infrastructure Hardening I work mainly with: VPN issues Firewall configuration Secure remote access Reverse proxy problems Linux server deployments Monitoring and log analysis High availability environments I focus on fast troubleshooting, security best practices and stable infrastructure delivery. If you need someone to solve infrastructure and security problems quickly and professionally, let’s talk.

Experienced IT Support Specialist | System & Network Admin | Windows & Linux Expert Overview: 🚀 11+ years of IT Support & System Administration | Windows, Linux, Networking, Cloud I help businesses and professionals resolve IT issues fast, securely, and remotely. What I Can Do for You: • System Administration (Windows Server, Linux – Ubuntu, CentOS, Debian) • Network Administration (Ubiquiti, Cisco, MikroTik, firewalls, VPNs, routing/switching) • Technical Support & Troubleshooting (Desktops, laptops, printers, software) • Remote Support (via AnyDesk, TeamViewer, RDP, SSH, etc.) • IT Infrastructure Setup & Maintenance • Active Directory, DNS, DHCP, Group Policies • Data Backup & Recovery (including Synology NAS, cloud backup solutions) • Email Setup & Support (Microsoft 365, Google Workspace) • Cybersecurity Best Practices & Tools Deployment • Deployed and managed Azure Virtual Machines, Storage, and Virtual Networks • Integrated on-premises Active Directory with Azure AD for hybrid identity and SSO • Automated infrastructure provisioning using Terraform and ARM templates • Configured Azure Site-to-Site VPN and NSGs for secure hybrid networking • Implemented Azure Backup and Site Recovery for data protection and disaster recovery • Monitored system health using Azure Monitor, Log Analytics, and alerts • Secured secrets and certificates with Azure Key Vault • Built CI/CD pipelines using Azure DevOps and GitHub Actions • Automated administration using PowerShell and Azure CLI Tools & Platforms I Work With: • Windows 10/11, Windows Server • Linux (Ubuntu, Debian, CentOS) • VMware, VirtualBox, Hyper-V • Synology NAS, AWS, Azure • Network Monitoring Tools (Zabbix, Nagios, PRTG) • Remote Tools: AnyDesk, TeamViewer, VNC, RDP Why Work with Me? • Proven track record with educational institutes and corporate environments • Detail-oriented and proactive in solving issues • Excellent communication and documentation skills • Available for ongoing support or one-time tasks • 100% committed to client satisfaction and data security

###Experienced Linux & Windows System Administrator I am a System Administrator and IT Support Specialist with over 12 years of hands-on experience managing Linux and Windows environments. I help businesses maintain reliable, secure, and high-performing IT infrastructure by providing fast and effective technical support. ### My Expertise **Linux System Administration** * Red Hat Enterprise Linux (RHEL) & Ubuntu * User & Group Management * Package Management (YUM/DNF) * File Permissions & Access Control * Samba File Sharing * Basic Network Configuration & Troubleshooting **Windows Administration** * Windows Installation (XP–11) * Active Directory Client Configuration * Network Printer Setup * User Support & Troubleshooting * Software Installation and Configuration **Virtualization & Networking** * VMware & VirtualBox * Local Area Network (LAN) Troubleshooting * Computer Hardware Assembly & Maintenance * Network Connectivity Troubleshooting ### Why Choose Me? * 10+ years of real-world IT experience * Fast response and reliable communication * Detail-oriented troubleshooting * Professional and client-focused service * Committed to delivering quality solutions on time Whether you need Linux server administration, Windows support, Oracle EBS assistance, virtualization setup, or network troubleshooting, I am ready to help keep your IT systems running smoothly. **Let's work together to build a reliable and efficient IT environment!**

Network and Cloud Systems Administrator with 5+ years of experience in IT infrastructure. Proficient in: | Networking & Security | Linux & Windows Servers | Hypervisors | AWS& Azure | M365 |Storage Solution Here is a detailed breakdown of my technical expertise: Infrastructure & Networking Networking: I have extensive experience with L2/L3 Switches from vendors like Cisco and Huawei, as well as other managed and unmanaged switches. Firewalls: My security expertise includes working with a wide range of firewall solutions from Cisco, Palo Alto, FortiGate, Huawei, Mikrotik, and Sophos. Wireless: I'm proficient in deploying and managing Wi-Fi solutions from Ubiquiti (UniFi), Ruckus, TP-Link, and Tenda. VPNs: My skills extend to implementing secure remote access using OpenVPN, WireGuard, and Cisco AnyConnect. Network Monitoring: I use industry-standard tools like Zabbix, Nagios, Checkmk, Cacti, and Solaris to ensure network health and performance. Systems & Virtualization Microsoft: I have a strong background in Windows Servers, Active Directory, Office 365, Azure AD, SharePoint, Exchange Online, and Teams. Linux: My Linux administration skills cover a variety of distributions, including Red Hat, Debian, SUSE, Kali Linux, CentOS, Ubuntu, and Fedora. Virtualization: I am an expert in virtualization technologies, including VMware vSphere, Hyper-V, Proxmox VE, Citrix Xen, and XCP-ng. Containerization: I am proficient in Docker, Kubernetes, and OpenShift for modern application deployment. Storage Solutions: I have hands-on experience with Synology NAS, SAN, Unraid, and TrueNAS. Mail Servers: My skills in email management include working with MS Exchange, Modoboa, Postfix, and Dovecot. Cloud & Security Cloud Computing: I am well-versed in cloud services, including SaaS, PaaS, and IaaS, and have practical experience with AWS, Azure, Hetzner, and Contabo. Endpoint Protection: My security skills include managing endpoint protection solutions like EDR, XDR, CrowdStrike, Falcon Sensor, Vipre, and ESET. SIEM Solutions: I have experience with Wazuh and Splunk for security information and event management. Applications & Tools Linux Applications: I have a strong command of common Linux applications such as Nginx, Apache, Gitlab, dhcpd, Bind9, and PowerDNS. Ticketing Systems: I'm proficient in using ticketing and project management tools like Redmine and Jira. VoIP: My experience includes working with VoIP platforms such as Vicidial and Issabel.