Hire the Best Debian OS Specialists in Dhaka, BD

With 12+ years of experience, I specialize in Windows, Linux, Network & Virtualization including VMware, Hyper-v, Proxmox and enterprise IT management to deliver secure, high-performance, and scalable infrastructures. 💻 Services that, I Provide: 1️⃣Windows Server, Active Directory, Entra ID, Intune, Microsoft 365 & G Suite 🔹 Windows Server (2012, 2016, 2019, 2022)- Active Directory setup and administration, Users/Groups, OU design, GPO, trusts 🔹 Core services: DNS/DHCP, WSUS, WDS, File/Print servers, permissions/ACLs, SMB shares 🔹 High availability: Failover Clustering, HA/DR planning and implementation 🔹 Identity & access: Microsoft Entra ID tenant management, identity integration (hybrid identity), conditional access basics 🔹 Endpoint management: Microsoft Intune device enrollment, compliance policies, configuration profiles, app deployment, security baselines 🔹 Security & certificates: AD CS / PKI, certificate services, SSL/TLS configuration and hardening 🔹 Microsoft 365 and Google Workspace (G-Suite) admin support (accounts, policies, mail flow basics, and tenant operations) 🔹 Active Directory Certificate Services (AD CS) & Public Key Infrastructure (PKI) – Deployment & Management 🔹 Web & app hosting: IIS installation/configuration, IIS Load Balancing, IIS WebFarm ARR, SSL binding, security hardening, and IIS troubleshooting 2️⃣ Linux & Web Server Administration 🔹 Linux Administration – RHEL, Ubuntu, Debian, CentOS 🔹 Service Management – Samba Server, Mail server, Zimbra, GIT, NFS, ISCSI, FTP, SFTP, Elasticsearch, Redis, LDAP, Docker, Nodejs, Express, NIC teaming 🔹 Database Management – MySQL, MariaDB, MongoDB, Percona, XtraBackup, PostgreSQL, Mirroring/High Availability. 🔹 Web Servers – NGINX / Apache (LEMP/LAMP), HAProxy, reverse proxy, SSL/TLS 🔹 Security: FirewallD, SELinux, UFW, ACL, SSH, hardening 🔹 Automation ( Bash, CHEF, Ansible, Terraform, Python ) 3️⃣VMware, Proxmox & Hyper-V Virtualization Expertise 🔹 VMware ESXi, vCenter, NSX, vSAN & Horizon deployment and management 🔹 High Availability, DRS, D-Switch, VLANs,& AD integration in VMware 🔹 Proxmox with LXC/KVM, Ceph storage & HA cluster configuration 🔹 Hyper-V setup with clustering, Live Migration, Storage Spaces Direct & Azure hybrid integration 🔹 iSCSI/Fibre Channel SAN, snapshot management & storage optimization 🔹 Strong in VM hardening, disaster recovery & performance tuning 4️⃣ Backup, Storage, Database, & Disaster Recovery 🔹 Veeam Backup & Replication, hardened Linux repo, offsite backup strategy, immutability planning 🔹 Veeam Cloud Connect, Veeam Cloud Connect Replication, Veeam Service Provider, Veeam Backup as a service (BaaS), Veeam DR as a Service (DRaaS) 🔹 Expertise in Synology NAS, QNAP, TrueNAS, & Nextcloud for secure storage 🔹 Backup, replication, failover, & DR strategies for BCP 🔹 Database admin for MSSQL, MySQL, PostgreSQL,MariaDB, Percona, Mirroring/High Availability, XtraBackup 5️⃣Networking, Firewalls, VPN & Security 🔹Routing & Switching (Cisco, Juniper, MikroTik , Huawei) 🔹 Routing/switching concepts, VLANs, trunking, NAT, LAN/WAN 🔹L4/L7 Firewall Policy Configuration (SonicWall, Sophos, Cisco ASA, Fortinet) 🔹VPN (IPSec, OpenVPN, WireGuard), Load Balancing & HA 🔹SD-WAN Deployment & NSX / NSX-T Micro-Segmentation 🔹Network Monitoring & Optimization using SNMP, NetFlow, Syslog 6️⃣ System Hardening, Security posture, endpoint/SOC tooling & Cloud 🔹 AWS: EC2, S3, IAM, VPC, Security Groups/NACLs, Route 53, Load Balancer, RDS, SNS/SQS 🔹 Skilled in SSL/TLS, clustering, & thread pool tuning 🔹 Strong in log analysis, performance tuning & system hardening 🔹 EDR: SentinelOne, CrowdStrike (deployment support, policy alignment, troubleshooting) 🔹 SIEM / Log management: Wazuh, GrayLog, Splunk, ManageEngine Log360 (log ingestion basics, alerting workflows, dashboard/reporting support) 🔹 Baseline hardening & hygiene: patching approach, access control, audit readiness, and incident-support workflows 🔹 Hardening Windows/Linux systems with Windows Firewall, Firewalld, IPTables, GPOs 🔹 Implementing NIST & CIS benchmarks, audits, patch and ISO-27001,PCI-DSS, HIPAA compliance 🔹 Python/PowerShell/Bash/Ansible scripting for automation 7️⃣ Monitoring, RMM + Documentation 🔹 Monitoring: Zabbix, Grafana/Prometheus, Nagios, AppDynamics & New Relic 🔹 RMM & MSP tooling: Syncro, ConnectWise (Automate/Manage where applicable), NinjaOne (Ninja RMM) for endpoint monitoring, patching, alerting, and remote support workflows 🔹 Strong focus on clear documentation, diagrams, SOPs, Change Management, reporting, and security posture documentation (controls, checklists, and runbooks) 🚀 Why Choose Me? ✔ 12+ years of enterprise IT experience in Windows, Linux, Virtualization & Cloud ✔ Proven expertise in troubleshooting & optimizing IT infrastructures ✔ Strong security focus – Ensuring system stability & compliance ✔ Efficient automation – Using Python, PowerShell & Bash scripting

I have 9+ years of experience in Linux/Windows Server/System Administration, System Security Analysis and hardening, Virtualization (VMware, Proxmox, Hyper-V) Management, Website, Cloud Server, Video Streaming Server, Database System performance optimization for speed, CDN, Email System, Anti-SPAM and DNS Administration. Skills: - Virtualization Platforms: VMware, Proxmox, OpenStack, OpenNebula, Xen, KVM, LXC, Docker - Cloud: AWS, DigitalOcean, Google Cloud, AliBaba Cloud, Microsoft Azure Cloud - Performance Optimization: Linux OS, Apache, Nginx, MySQL, MariaDB, Website, WordPress - Expertise in security solutions like Firewalls, Anti-Spam Solutions, VPN (OpenVPN, WireGuard, OpenConnect, WebSock), Security Gateways, IDS/IPS (Suricata, Snort, pfSense, OPNsense, Palo Alto, SOPHOS UTM). - Expert in Email Servers and Anti-Spam Gateways (Postfix, Exim, Barracuda, Zimbra, Proxmox Gateway, SOPHOS) - Disaster Recovery, DLP, Data Backup solutions. - Database Administration and tuneup for higher performance & query. - Knowledge in IP-PBX, VoIP, WebRTC, RTMP, Wowza - BigBlueButton & Scalelite Custom Video Conferencing, Video streaming solutions with LMS integration. - Expertise in WordPress, Website Performance/Security Optimization. - Hosting Control Panels: cPanel, VestaCP, DirectAdmin etc. - Knowledge of Cross-platform mobile app development using React-Native. - Desktop software development using Java and React-Native-Windows - Integrate any hardware with software using SDK (Java, PHP) I can adapt myself with new technology, products as per company needs. I can develop new products and drive excellent growth and positive revenue. I'm fluent/native in the English language. I'll deliver your project on time with quality and excellence.

Hi, I'm Mir, a Linux System Administrator and Web Developer with 10+ years of experience building high-performance websites and managing secure, reliable server infrastructure. ## Highlights 🏆 500+ Successful Projects 🏆 10+ Years of Professional Experience 🏆 500+ Five-Star Reviews 🏆 2000+ Upwork Hours Completed 🏆 40+ Verified Skill Badge Certifications I hold 40+ verified skill badge certifications from leading organizations including Google Cloud, IBM, and the Linux Foundation, ensuring up-to-date technical expertise and industry best practices. ⁉️Need a dependable Linux server expert who can keep your infrastructure fast, secure, and online? I specialize in designing, optimizing, securing, and maintaining web servers and websites for businesses worldwide. Whether you need a new server deployment, performance optimization, troubleshooting, security hardening, or ongoing maintenance, I deliver reliable solutions that allow you to focus on growing your business instead of managing technical issues. In addition to server administration, I build SEO-friendly websites and provide complete website management services including monitoring, backups, security, DNS management, and disaster recovery planning. ## Areas of Expertise ### Linux System Administration • Linux Server Administration • Server Hardening and Security • Performance Optimization • Troubleshooting and Issue Resolution • Server Migration and Maintenance ### Web Development • SEO-Friendly Website Development • Website Performance Optimization • Technical SEO Improvements ### DNS and Domain Management • DNS Configuration and Troubleshooting • Custom DNS Records • Domain Transfers and Migration • Email DNS Setup (SPF, DKIM, DMARC) ### Web Hosting and Server Management • Web Hosting Maintenance • Server Deployment and Configuration • Performance Tuning • Infrastructure Optimization • Backup and Recovery Solutions ### WordPress Services • WordPress Development • Website Security and Hardening • Speed Optimization • Malware Cleanup and Recovery • Ongoing Maintenance and Support ### Email Services • Email Deliverability Troubleshooting • Blacklist Removal Assistance • SMTP Configuration • Email Server Setup and Optimization ## Technologies and Platforms ✔ Cloudflare ✔ AWS ✔ Google Cloud Platform (GCP) ✔ DigitalOcean ✔ IBM Cloud ✔ Oracle Cloud ✔ Linode ✔ cPanel ✔ Plesk ✔ Elementor Pro ✔ Google Search Console ✔ SMTP Services ✔ Apache ✔ Nginx ✔ OpenLiteSpeed ✔ RTMP Server Deployment ✔ WireGuard VPN ✔ OpenVPN ✔ And many more technologies and platforms ☎If you're looking for a professional who values reliability, security, performance, and long-term partnerships, I'd be happy to discuss your project requirements and help you find the right solution. 🕑I provide responsive communication, timely delivery, and practical solutions tailored to your business needs. Let's work together to make your project a success.

I'm a professional Senior Linux Systems Engineer with over 14 years of hands-on experience in managing, securing, and optimizing Linux-based servers and infrastructure. If you're a startup, entrepreneur, web agency, or enterprise looking for rock-solid server performance, automation, and security, you're in the right place. I work closely with clients to build stable, scalable, and secure Linux environments What I Can Help You With: Linux Server Setup & Management: Debian, Ubuntu, CentOS, AlmaLinux, RHEL etc Installation, Disk partitioning, LVM, RAID, system hardening Performance tuning and troubleshooting Web Server Deployment: Apache2, Nginx, PHP-FPM, SSL/TLS, Let's Encrypt Virtual Hosts, Rewrite Rules, Reverse Proxy configuration Mail Server Configuration: Postfix, Dovecot, Zimbra, Roundcube etc SMTP, IMAP, SPF, DKIM, DMARC setup Email deliverability and spam protection DNS & Control Panels: BIND, PowerDNS, DNS record management Webmin, ISPConfig, CyberPanel, Virtualmin, Vestacp etc setups Cloud & DevOps Integration: Infrastructure automation using Bash and Ansible Server provisioning, patching, user/group management, cron jobs Experience with various cloud platforms Cloud server setup and management VPN & Proxy Services: Squid, 3proxy, WireGuard, OpenVPN, Anyconnect, PPTP, Ipsec IP rotation, IPv4/IPv6 support, authentication Monitoring & Logging: Zabbix, Nagios, Grafana, Cacti ELK Stack: Elasticsearch, Logstash, Kibana Virtualization & Containers: KVM, Proxmox, VMware ESXi Docker containers, Docker Compose, orchestration Database & Backup: MySQL/MariaDB setup, optimization, replication, backup & restore Rsync, Rclone, cloud/offsite backup strategies Custom backup scripting and automation If you’re looking for a trusted Linux expert to support or transform your infrastructure, let’s connect and discuss how I can help!

I am a Linux & Windows System Administrator and DevOps Engineer with over 8 years of experience, specializing in server management, automation, and cloud infrastructure. I help businesses maintain secure, high-performance, and scalable IT environments. My expertise includes: ✔ Linux & Windows Server Administration: Linux: Debian, CentOS, Ubuntu, RHEL – maintenance, troubleshooting, and optimization. Windows Server: Active Directory, Group Policy, IIS, Remote Desktop Services, DNS, DHCP, and PowerShell automation. ✔ DevOps & Automation: CI/CD pipelines, Ansible, Docker, Kubernetes, Terraform, Jenkins, and GitLab CI/CD. ✔ Cloud & Virtualization: AWS, Google Cloud, DigitalOcean, Azure, VMware, and KVM-based solutions. ✔ Web Servers & Performance Tuning: Apache, Nginx (with PHP-FPM/FastCGI), MySQL, Varnish, Memcached. ✔ Odoo ERP: Deployment, configuration, maintenance, and troubleshooting. ✔ Networking & Security: iptables, rsync, BIND, OpenVPN, Windows Firewall, network troubleshooting. ✔ Email Servers & Deliverability: Exim, Dovecot, Postfix, Microsoft Exchange, MailEnable – setup and troubleshooting. ✔ Backup & Migration: Secure and seamless server, database, and email migration. ✔ Control Panels: WHM/cPanel, Virtualmin, Plesk – installation and management. ✔ Monitoring & Logging: Zabbix, Munin, Nagios, ELK Stack (Elasticsearch, Logstash, Kibana), Windows Event Viewer. ✔ Lost Data Recovery: Helping recover critical data from both Linux & Windows environments. I am committed to providing secure, efficient, and scalable solutions for businesses. If you need assistance with server management, DevOps automation, Windows/Linux support, or performance optimization, feel free to reach out!

Hi, I am Sazedur Rahman, working as a System Engineer for Linux/Unix-like OS Based Systems in a Reputed Financial Organization. I am new to Upwork but have more than five years of profound Experience in Linux/Unix System Administration, Configuration, Server Security and Automation. Completed various Live projects such as Authoritative DNS, DNSsec, Caching DNS, Zimbra Multi-Server Mail Solution, Multiple Web Server using Apache and NGINX, Local Repository for Linux Distributions Like- CentOS/Ubuntu & EPEL/Zimbra/RemiPHP, File Server Integrated with Windows AD for more than 8K Users, IPA Server, NTP Server, Cockpit Server, Secure File Sharing with Next Cloud. Expertise in - Linux Server Configuration- Web, Mail, DNS, Virtual Hosting, Samba, NFS, FTP, HA Cluster, Apache/NGINX with SSL/TLS, Gluster Storage (GFS2), Zimbra Mail Server, Red Hat Satellite, Spacewalk (open-source systems management), Linux System Security - Firewalld, iptables, fail2ban System Automation using- Shell Scripting, Ansible, Python Linux System Penetration Testing using OpenSCAP. Virtualization- vmware, rhev, kvm Kubernetes, Docker, Container Also certified as CCNA, RHCE, RHCVA & RHCA (Red Hat Cert ID: 160-039-582).