Hire the Best Slackware Linux Specialists

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Cleverson P.

Matinhos, Brazil

$25/hr
5.0
4 jobs

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.

  • Linux System Administration
  • Information Security
  • DevOps
  • Proxmox VE
  • Zabbix
  • PfSense
  • VPN
  • OpenVPN
  • Docker
  • NGINX
  • Apache HTTP Server
  • Ubiquiti
  • Zero Trust Architecture
  • DNS
  • Cloudflare
  • Virtualization
  • Cybersecurity Monitoring
  • Security Infrastructure
Sunil K.

Chandigarh, India

$10/hr
5.0
22 jobs

Senior Linux & Cloud Infrastructure Engineer | DevOps | 5+ Years | 100% Job Success I keep production systems up, fast, and secure — so you don't have to think about infrastructure. Currently managing 60+ Linux servers across AWS, Azure, and GCP for enterprise clients, including high-traffic WordPress fleets, educational LMS platforms, and SaaS applications. ━━ WHAT I DELIVER ━━ → WordPress at Scale: GridPane, OpenLiteSpeed, LiteSpeed Enterprise, Cloudflare WAF, CDN optimization — page loads cut from 4s to <1s → Cloud Infrastructure: AWS (EC2, S3, Route 53, IAM), Azure, GCP — architecture, migration, cost optimization → DevOps & CI/CD: Jenkins, GitHub Actions — automated build, test, and deployment pipelines → Infrastructure as Code: Ansible playbooks for provisioning, config management, and compliance automation (DISA STIG, OpenSCAP) → Containers: Docker, Portainer, Docker Compose — multi-container app deployment → Monitoring & Observability: Zabbix, Grafana, Prometheus, Loki — full-stack setup with alerting pipelines across 40+ production servers → Networking & VPN: Tailscale mesh VPN, Cloudflare Tunnels, Nginx/Caddy reverse proxy, pfSense, DNS management at scale → Security & Compliance: ModSecurity, OWASP hardening, DISA STIG, Wazuh SIEM, zero breaches in 5 years → Automation: Ansible, Bash, PowerShell, n8n workflows — eliminated 20+ manual hours/week → Microsoft 365 & Entra ID: full tenant management, MFA, Conditional Access, bulk provisioning → Mail Infrastructure: Postal Mail Server, SendGrid, DKIM/SPF/DMARC from scratch → Virtualization & Homelab: Proxmox, VMware ESXi, PXE boot + autoinstall for zero-touch Ubuntu provisioning, LVM storage, VM lifecycle management ━━ PROVEN RESULTS ━━ ✓ Built Jenkins CI/CD pipeline with Ansible for DISA STIG-compliant Ubuntu server fleet ✓ Deployed PXE autoinstall infrastructure for zero-touch provisioning of 10+ VMs ✓ Migrated 50+ WordPress sites with 100% data integrity and zero downtime ✓ Reduced server response time 40% through OLS tuning + CDN integration ✓ Set up full observability stack (Zabbix + Grafana + Loki) across 40+ production servers ✓ Implemented Tailscale mesh VPN across Proxmox homelab and remote VPS nodes ✓ Configured multi-layered security stack reducing spam/injection by 95% ✓ Automated M365 student provisioning for 3 educational institutions (500+ accounts) ✓ Reduced manual ops overhead 60% through n8n + Bash automation workflows ✓ Deployed automated backup systems saving clients 15+ hours/week ━━ TECHNOLOGY STACK ━━ Cloud: AWS (EC2, S3, IAM, Route 53, CloudWatch) | Azure | GCP On-Prem: Proxmox | VMware ESXi | Hyper-V | Bare Metal (OVH, Contabo, Hetzner) OS: Ubuntu 20/22/24 LTS | Rocky Linux | CentOS | RHEL | Debian Web: Apache | Nginx | LiteSpeed | OpenLiteSpeed Panels: GridPane | cPanel/WHM | Plesk | CyberPanel | aaPanel DB: MySQL | MariaDB | PostgreSQL DevOps: Ansible | Jenkins | GitHub Actions | Bash | PowerShell | n8n Containers: Docker | Portainer | Docker Compose Monitoring: Zabbix | Grafana | Prometheus | Loki | Uptime Kuma Security: Wazuh SIEM | OpenSCAP | ModSecurity | Cloudflare WAF | CSF | Sophos | Fortinet DNS/Mail: Cloudflare | Route 53 | Postal Mail Server | DKIM/SPF/DMARC RMM: Atera | ConnectWise | Datto | N-able I provide detailed documentation for every implementation and respond within 1 minute during business hours Send me your requirements — I'll respond with a tailored plan within 24 hours.

  • Linux System Administration
  • Windows Server
  • Firewall
  • Office 365
  • Database Administration
  • Web Server
  • cPanel
  • WHMCS Development
  • Backup & Migration
  • Microsoft Office
  • Tech & IT
  • IT Support
Abdul R.

Lahore, Pakistan

$20/hr
4.9
33 jobs

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.

  • Linux
  • Windows Server
  • Amazon Web Services
  • Office 365
  • System Administration
  • Network Administration
  • Firewall
  • Remote IT Management
  • Virtualization
  • Proxmox VE
  • Docker
  • Network Engineering
  • Cloud Management
  • IT Support
  • VPN
Vishal S.

Indore, India

$50/hr
5.0
130 jobs

✔️ Plex, IPTV, Emby, Jellyfin, Usenet Expert ✔️ Synology, TrueNAS, UnRaid, NAS, Proxmox, Openshift, Linux, Mac ✔️ Unity with PHP Multiplayer Game Development ✔️ Apache, NGINX, Varnish, Redis, Memcached, Postfix, Exim, MySQL, Postgres, MariaDB, DynamoDB, Redshift, Prometheus, Grafana ✔️ GCP, Microsoft Azure, AWS, Digital Ocean, Hetzner, Contabo, Cloudflare ✔️ SSO Expert- Authentik, LDAP, SAML, Keycloak ✔️ Proficient in Docker, Kubernetes, Helm, Terraform, Ansible ✔️ Expertise in Private DNS servers, DNS over TLS, DNS over HTTPS, Bind, DNSMasq, Unbound, etc ✔️ All Scripts/Forum Software installation and configuration ✔️ Troubleshooting Websites/servers (Linux) ✔️ Git implementation/integration with existing software flow, including CI-CD Pipeline ✔️ Domain Configuration, Management ✔️ Proficient in JAVA, PHP, PYTHON, SWIFT, KOTLIN. ✔️ Prepare for and carry out server migration. Site migration, Geo Restriction, Advanced Security ✔️ HestiaCP, Cloudflare, Tunneling, WHM, cPanel

  • Linux System Administration
  • Python
  • GitHub
  • Metasploit
  • DNS
  • cPanel
  • Database Administration
  • Ubuntu
  • SSL Certificate
  • Apache HTTP Server
  • Terraform
Pandi W.

Bogor, Indonesia

$22/hr
4.9
133 jobs

I help clients deploy, migrate, secure, and maintain reliable production infrastructure for business-critical environments. My primary focus is Linux server administration, self-hosted infrastructure, cloud deployment, networking, and long-term infrastructure maintenance, with hands-on experience supporting live production systems for ongoing clients. I can help with: ☁️ Cloud & Infrastructure • Nextcloud deployment, migration, troubleshooting, upgrades, and maintenance • AWS server deployment, configuration, and maintenance • Google Cloud (GCP) server deployment and infrastructure maintenance • VPS deployment and cloud server troubleshooting 🐳 Docker & Containerization • Docker / Docker Compose deployment • Container management and production environment optimization • Docker application deployment on VPS and NAS environments 🔒 Security & Networking • SSL installation and HTTPS automation with Let's Encrypt • Reverse proxy configuration (Nginx, Apache, Caddy, Traefik) • Firewall configuration and VPS security hardening • Infrastructure security auditing and vulnerability mitigation • VPN setup and secure remote access configuration • Network Address Translation (NAT) configuration • Network routing and firewall policy management • MikroTik router configuration and management • FortiGate firewall configuration and maintenance 📦 Migration Services • WordPress migration and server-to-server migration • Domain migration and DNS configuration • Infrastructure migration between cloud providers • Website and application migration with minimal downtime 📧 Email & Workspace Administration • Google Workspace setup and email configuration • Google Workspace mailbox migration • Microsoft 365 / Office 365 migration and email configuration • SMTP configuration and email troubleshooting • Business email migration and mail delivery troubleshooting 💾 NAS & Storage Systems • NAS deployment and maintenance (Synology, QNAP, TrueNAS / FreeNAS) • Docker deployment on NAS environments • NAS security hardening and remote access configuration • Backup configuration and storage optimization 🛠️ Server Administration & Maintenance • Linux server administration (Ubuntu, Debian, AlmaLinux) • Backup automation and disaster recovery planning • Infrastructure monitoring and production maintenance • Performance optimization and troubleshooting • Long-term server maintenance and production support I believe good infrastructure is not measured by how fast it is deployed, but by how stable, secure, and maintainable it remains in production over time.

  • Linux System Administration
  • Amazon Web Services
  • Google Workspace
  • Google Workspace Administration
  • SSL
  • Varnish Cache
  • Docker
  • DevOps
  • WebRTC
  • Database
  • Cloud Architecture
  • System Automation
  • Email Automation
  • n8n
  • Python
  • Data Migration
  • Storage Area Network
  • Build Automation
  • Modbus
  • Windows Administration
Anton N.

Lisse, Netherlands

$50/hr
5.0
45 jobs

Multi-discipline system engineer with more that 25 years of experience on Linux/Unix, networking, high performance computing and high availability / high reliability systems. Interested in: - Building large scale high-loaded web platforms running in heterogeneous environment - High performance networking with SDN/NFV - Embedded development and wireless technologies, mostly small-sized and power-efficient (IoT, etc).

  • Linux System Administration
  • Linux
  • Systems Engineering
  • NGINX
  • Python
  • PHP
  • Network Administration
  • VPN
  • Lua
  • Database Administration
  • NoSQL Database
  • FreeBSD
  • Raspberry Pi
  • Debian
  • MySQL

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