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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!

###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!**

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, vMotion, D-Switch, VLANs,& AD integration in VMware 🔹 Proxmox with LXC/KVM, Live Migration, 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

Cloud Infrastructure and Platform Engineering professional with extensive experience in designing, deploying, and managing enterprise-scale cloud platforms and mission-critical infrastructure. Expertise in OpenStack, Kubernetes, virtualization, software-defined storage, Linux, automation, and cloud networking. Certification: 🥇 Certified Kubernetes Administrator (CKA) 🥇 Red Hat Certified Engineer (RHCE) 🥇 Red Hat Certified System Administrator (RHCSA) 🥇 Red Hat Certified Specialist in Virtualization (RHCVA) Skills and Specialties: ✅ Virtualization & Cloud: OpenStack, Proxmox, Docker, Kubernetes, KVM, AWS ✅ Storage: Ceph, TrueNAS, ZFS, GlusterFS, iSCSI, NFS ✅ Cloud Networking: OVN, OVS, VXLAN, VPN, Load Balancers, Firewalls, GSLB ✅ Automation & DevOps: Ansible, Bash, Terraform, Git, CI/CD ✅ Monitoring & Observability: Zabbix, Prometheus, Grafana, Alertmanager, Node Exporter, ELK ✅ Infrastructure Services: DNS, NTP, Mail Systems, Web Servers, cPanel/WHM ✅ VoIP: Asterisk, FreePBX, Vicidial, Voice Gateway, SS7 Media Gateway

⭐⭐⭐⭐⭐𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐄𝐱𝐩𝐞𝐫𝐭 𝐨𝐧 𝐒𝐞𝐫𝐯𝐞𝐫, 𝐒𝐭𝐨𝐫𝐚𝐠𝐞, 𝐕𝐢𝐫𝐭𝐮𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧, 𝐁𝐚𝐜𝐤𝐮𝐩 & 𝐃𝐢𝐬𝐚𝐬𝐭𝐞𝐫 𝐑𝐞𝐜𝐨𝐯𝐞𝐫𝐲, 𝐋𝐢𝐧𝐮𝐱, 𝐖𝐢𝐧𝐝𝐨𝐰𝐬, 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬, 𝐂𝐈/𝐂𝐃, 𝐃𝐞𝐯𝐎𝐩𝐬, 𝐌𝐮𝐥𝐭𝐢-𝐂𝐥𝐨𝐮𝐝 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭 🏆𝟏𝟐+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 | 𝐈𝐓 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞, 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 & 𝐃𝐞𝐯𝐎𝐩𝐬 | 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭 I’m a 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁 with over 12 years of hands-on experiences on IT infra design, deployment, implementation, configuration, migration, support services with below key skill include - 🏆 Enterprise Storage, Server, Backup & Recovery Architecture and Implementation 🏆 Dell EMC, HITACHI, NetApp, HPE, IBM, Pure, Huawei, Lenovo, Fujitsu, SAN/NAS Storage, Administration, Replication, Migration Technologies 🏆 Backup Recovery solution with Commvault, Veritas NetBackup, Backup Exec, Veeam, Acronis, EMC Networker, Data Domain, Avamar, IDPA 🏆 System and Data Migration with SAN Copy, vMotion, P2V, V2P, Rsync, RClone 🏆 Cisco MDS and Brocade SAN Fabric / FC Switch 🏆 Rack and Modular Chassis Server Implementation and Administration 🏆 Synology, QNAP, TrueNAS, Isilon NAS Storage & Open Source Platform deployment 🏆 Linux/Unix, Ubuntu, CentOS Install, Update, File System, LVM, ACL, SSL, Apache, Nginx Web Server Configuration 🏆 Windows Server Install, Active Directory Domain Contoller, DNS, RDS, DHCP, FTP, Web Server, IIS, File Server, Failover Cluster configuration 🏆 Microsoft Hyper-V Install, Replication, HA Cluster, Nutanix, Proxmox, VirtualBox virtualization setup 🏆 VMware ESXi, vCenter Install, Virtual Machine, vSAN Cluster, HA Cluster, vMotion, Workstation setup 🏆 Oracle, MySQL, SQL Database configuration & management 🏆 Azure, GCP, AWS, IBM, OCI, DigitalOcean, Public Cloud resource management, AutoScaling, Load Balancer, VPC, Platform migration, configuration 🏆 Docker, Kubernetes cluster seup, container management, deployement, Azure DevOps, GitHub Actions, GitLab CI, Jenkins, ArgoCD, CI/CD pipeline 🏆 Network Switch, Router, Firewall, Gateway, Access Point, Wireless device configuration with Cisco, Juniper, Fortinet, MikroTik, D-Link, TP-Link, HPE Networking, Aruba, Avaya, Ubiquity, UniFi, Dell Networking PowerSwitch, F5, VPN, Proxy, Packet Tracer Network Design and Configuration 🏆 Batch, PowerShell and Bash Scripting ✅ ＭＹ ＣＯＲＥ ＥＸＰＥＲＴＩＳＥ 💾 Server, Storage & SAN ✔ Dell EMC PowerMax, VMAX, Unity, PowerStore, VxRail, Isilon/PowerScale ✔ Hitachi VSP, HNAS, G-Series, USP, HUS ✔ NetApp AFF, FAS, ASA, EF Series, StorageGRID ✔ HPE 3PAR, Nimble, Primera, Alletra, StoreOnce, MSA ✔ IBM FlashSystem, SVC, DS Series ✔ Pure Storage, Huawei OceanStor/Dorado, Fujitsu, Lenovo, Oracle ZFS ✔ SAN/NAS Design, Storage Migration, Replication, Performance Optimization ✔ Cisco MDS & Brocade SAN Fabric Administration 🗃️Backup, Disaster Recovery & Data Protection ✔ Commvault Backup & Recovery ✔ Veeam Backup & Replication ✔ Veritas NetBackup & Backup Exec ✔ Dell EMC Avamar, Networker, Data Domain, DPS ✔ Cohesity, Acronis, AWS/Azure/GCP Backup ✔ Kubernetes Backup using Kasten K10, Velero ✔ DR Design, Replication, Failover & Recovery Testing 🖥️Virtualization Infra ✔ VMware ESXi, vCenter, vSphere, vSAN, HA, DRS, vMotion ✔ Microsoft Hyper-V, Failover Cluster, Replication ✔ Nutanix AHV ✔ Proxmox VE ✔ P2V, V2V, Live Migration & Infrastructure Consolidation 🐧💻Linux & Windows System Administration ✔ Ubuntu, RedHat, CentOS, Rocky Linux, Debian ✔ Windows Server ✔ Active Directory, DNS, DHCP, IIS, RDS, File Server ✔ Apache, Nginx, SSL, LVM, ACL, Bash & PowerShell Scripting ✔ Server Hardening & Security Best Practice ☁ 𝗠𝘂𝗹𝘁𝗶-𝗖𝗹𝗼𝘂𝗱 & 𝗖𝗹𝗼𝘂𝗱 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 ❒ Azure – AKS, AVM, App Services, App Gateway, Key Vault, Defender, Sentinel, SQL, Cosmos DB, Blob Storage, Functions, ExpressRout ❒ AWS – EC2, EKS, ECS, Lambda, RDS, DynamoDB, S3, CloudFront, Route53, API Gateway, CloudFormation, IAM, VPC, Direct Connect ❒ GCP – Compute Engine, GKE, Cloud Run, Cloud Functions, BigQuery, Cloud SQL, Firestore, Pub/Sub, Cloud Storage, VPC, VPC peering, Interconnect ❒ OCI – OKE, Compute, Autonomous DB, Exadata, Object Storage, FastConnect, Load Balancer, Vault ❒ Hybrid / Multi-Cloud Networking (VPN, ExpressRoute, Direct Connect, Interconnect) ❒ Hybrid & Multi-Cloud Architecture, Cloud Migrations & Disaster Recovery ⚙ 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 ❒ CI/CD Pipelines: Helm, ArgoCD, GitOps, GitHub Actions, GitLab CI, Jenkins ❒ IaC: Terraform, Ansible, ARM, CloudFormation ❒ Docker & Kubernetes (AKS, EKS, GKE, OKE, On-Prem K8s) 🔐 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 & 𝗖𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲 ❒ IAM, RBAC, Conditional Access, SSO, Key Vault / KMS ❒ Multi-Cloud Security Monitoring (Defender for Cloud, AWS GuardDuty, GCP SCC) ❒ Compliance (SOC2, NIST, ISO 27001, HIPAA, PCI DSS) ❒ DevSecOps & Automated Security Scanning 👉 Let’s connect!

* Over 5 years of On-prem work experience in TIER III datacenter * Over 3 years of Public/ Private Cloud work experience. * Cloud VM/ EC2 instances with proper networking and storage. * Windows Server with Roles and Features * Linux server OS with Mail, Web, FTP, EMAIL, DNS, DHCP, YUM, Cacti, Nagios services. * Switching: Cisco, Juniper, BDCOM, Quanta, Huawei etc * Routing: Cisco, Juniper, MikroTik, vyOS etc * Firewalls: FortiGate, PaloAlto, Juniper SRX, MikroTik, pfSense etc, * Wifi: Cambium, Ubiquiti, TP-Link, D-Link Tenda, Netgear etc * Security: WAF, Site-to-site VPN, Remote Access VPN, OpenVPN, PCI-DSS, OpenSCAP etc * Monitoring and troubleshooting of various services. Professional Experiences: * Currently working as an Assistant Manager (Systems ) at a well-reputed Data Center company doing Typical Level 3 / Core infra and system-related tasks. Professional Certifications: * Red Hat' RHCE, RHCSA * Microsoft' MCSA, Azure Administrator Associate (Az-104) * Cisco' CCNA * MikroTiks MTCNA * WHM & cPanel' CWSA also participated in Certified Ethical Hacker (CEHv9) course for cybersecurity skills. Skills haven't mentioned: * Implementing technologies protocol like VXLAN, VLANs, STP, RSTP, PVST+, inter-VLAN, SSH, IGRPv2, DHCP, OSPFv2, BGP, etc. * Providing offensive securities like HTTPS, SSL, Captcha Authentication, 2FA Authentication, DDos protection, CSRF protection, inbound/outbound email protection, etc. * Designing infrastructures in Microsoft VISIO for better security and compliance. Academic Qualification: * B.Sc. in Electrical and Electronic Engineering (EEE) at Daffodil International University. Please consider inviting me to apply for your job so that we can continue working together. Best Regards, Md Jan A Alom Beg