Hire the Best Linux System Administrators
in Sri Lanka

If your VPS, Linux server, or email system is broken, misconfigured, or throwing errors — I can fix it safely and correctly. I’m a Linux System Administrator with hands-on production experience handling VPS servers, email systems, migrations. and WordPress hosting. I specialize in troubleshooting and fixing issues, not guessing or reinstalling blindly. What I can help you with: • Linux & VPS troubleshooting (Ubuntu) • Fix 502 / 504 / mail delivery errors • Email server setup & migration (Sendy, Postfix, Mail apps) • Server migrations (VPS to VPS, zero or minimal downtime) • Nginx & basic server performance tuning • Security hardening & cleanup Why clients choose me: • I diagnose before touching anything • I explain the issue clearly • I focus on stability, not quick hacks If you’re unsure what’s wrong — message me with the problem. I’ll tell you honestly if I can help before starting.

✅ Self-motivated Linux Server Administrator and Network Administrator with more than 10+ years of working experience with different Cloud providers. Ready to take up any challenge. ✅ Expert on, 💎 AWS, Google Cloud, Azure, DigitalOcean or onPrem server management. 💎 Setting up and manage different environment Web Server, Database Server, Mail Server, Load Balancer, Optimization and Security. 💎 Designing Web Server - Building web server based on Apache, Nginx, Nginx/php-fpm, Varnish as backend with high performance tuning and major security issues. 💎 Learning Management Systems – Moodle (Expert) including mobile app (Android & Apple IoS) customization 💎 Document Management Systems – Nextcloud (Expert) and onlyoffice 💎 Security - Malware removal, server hardening using firewall rules, restriction in server login, Web security, Security auditing, fail2ban, mod_security for web attack, mod_evasive DDOS attack prevention, Firewall setup CSF, UFW and iptables. Prevention from mail attack, SSL Certificate installation. 💎 Database Server - Building MySQL, Mariadb database server with high performance , troubleshoot database server problems, tweaking MySQL variables for performance. 💎 Scripting - Bash Scripting for monitoring servers, auto backup. 💎 Mail server- Building mail server for sending and receiving mails postfix, sendmail, setup mail client Roundcube, SquirrelMail, Rainloop, Horde. Dovecot for POP & IMAP, troubleshoot mail issues, configure mail for delivery in inbox. 💎 Monitoring services and servers – LibreNMS, Nagios monitoring tools, tweaking as per requirement, monitor servers using bash script, Tripwire. 💎 Amazon - AWS EC2 server setup, Security. 💎 Cloud Servers & Panel - Management of Ubuntu, Centos, Cpanel, CWP, WHM, Plesk, Webmin, Diretadmin, ISPConfig, JustHost, Godaddy, Linode, Rackspace, Amazon. 💎 Migration - Server migration, website migration, database server migration, mail server migration. 💎 VOIP Solutions - Asterix based PBX (Eg: VitalPBX) 💎 Video conferencing - Zoom (including on premise setup), Jitsi, BigBlueButton 💎 Virtualization Technology - VMware VSphere Esxi, KVM, Xen Server 💎 Networking (CCNP R&S and SP certified) - Hands on experience with CISCO, HP, Extreme, Juniper devices including wireless. 💎 Firewall configurations - Hands on experience with Palo Alto, Check point and Cisco ASA firepower. ✅ Please do not hesitate to contact me to discuss your project in detail and determine how my skills will positively contribute to your team.

Hi, I’m Udantha 👋 — a Systems Engineer & DevOps/Hosting Specialist with 7+ years of hands-on experience in: Linux system administration WordPress troubleshooting Docker deployments CloudPanel / Plesk / cPanel hosting Server migrations & backup recovery Virtualization & Cloud Operations DNS, Email (DKIM/DMARC/SPF), SSL, and security hardening MySQL/MariaDB performance tuning Website performance optimization Cloud deployments on AWS / DigitalOcean / Linode I specialize in fixing broken systems, optimizing slow servers, and performing clean, zero-downtime migrations—the kind of work where precision matters. Clients hire me for tasks that need someone who can quickly diagnose, clean up, and stabilize complex environments: 🛠 I Can Help You With: Server security hardening & performance tuning Database fixes, recovery, and replication Cloud server setup (Ubuntu, Debian, Rocky, Alma) Fixing DNS, email deliverability & hosting issues Restoring crashed websites (Digital Ocean, AWS, Google, IONOS, Bluehost, SiteWorx, etc.) WordPress errors, migrations, malware cleanup Web servers such as Nginx / Apache SSL configurations Docker Configurations Backup strategy design (Acronis, B2, rsync, S3, Plesk backup) ⚡ Why Clients Like Working With Me I solve problems fast I provide clean documentation after every job I communicate clearly and don’t overpromise I’ve rescued dozens of servers & websites from disaster If you're looking for someone reliable who can stabilize your servers, fix urgent issues, or manage complex migrations with zero drama — I’m available and ready to help. Let’s get your systems running smoothly again. 🚀

Red Hat Certified System Engineer, having around 12 years of experience working in Linux environment and worked on many projects over the year involving Cloud and Dedicated servers. Knowledge of Enterprise Infrastructure technologies and architecture. Worked as consultant on various projects in the past to design and implement an environment which uses Linux and Clusters to run Applications. Os : Linux and Wondows server expert Cloud Services : AWS,GCP, Linode, ToggleBox Configuration : Ansible Containers : Docker/Kubernetes Relational Database Servers : MySql, Oracle, PostgreSql, MsSql,MongoDB DB Languages : Pl/Sql,Stored Procedures, SSIS Scripting Languages : Bash, Perl, Java No Sql Database servers : MongoDB Atlassian: Jira Web servers: Apache, Nginx, Tomcat Mail Servers : Zimbra,Postfix,Sendmail,Hmail,Dovecot Monitoring: Nagios, Zabbix, Monit, Munin, Cacti Virtualization: Openvz, Vmware/Vsphere ESXi/server, VirtualBox CMS : Wordpress, Magento firewalls: iptables, ufw Other: standard network services (DNS, DHCP, FTP, SVN/Git, http proxy, VPN, backups, monitoring etc)

I am an energetic and enthusiastic Systems Engineer with over 10 years of professional experience, specializing in web hosting solutions, web server installation, and web hosting management. My expertise includes managing and optimizing web servers, databases, and cloud infrastructures, ensuring high performance and reliability for my clients. Here are some key services I offer: Web Hosting Solutions: I have extensive experience with various web hosting platforms such as WordPress, Joomla, CodeIgniter, and Drupal. I can set up, manage, and optimize your web hosting environment to ensure smooth and efficient operation. Web Server Installation: I am proficient in installing and configuring web servers like Nginx, Apache, and LiteSpeed. I ensure that your web server is set up correctly and optimized for performance. Web Hosting Management: I provide comprehensive web hosting management services, including server monitoring, security updates, and performance tuning. I also handle tasks such as SSL installation, DNS configuration, and database management. Cloud Solutions: I have expertise in AWS, GCP, and Digital Ocean cloud solutions. I can help you set up and manage your cloud infrastructure, ensuring scalability and reliability. Security and Optimization: I prioritize security and performance optimization for all web hosting solutions. I implement best practices to protect your website from potential threats and ensure fast loading times. Consultancy Services: I offer consultancy services to help you make informed decisions about your web hosting needs. I can provide guidance on choosing the right hosting solution, migrating to a new host, and optimizing your website for better performance. My certifications include AWS Certified Solutions Architect Associate, VMware Certified Professional 6 - Data Center Virtualization, and cPanel & WHM Proficiency Certification, among others. These certifications demonstrate my commitment to staying up-to-date with the latest technologies and best practices in the industry. I am confident that my skills and experience make me a perfect fit for your web hosting needs. I am available to start immediately and am committed to delivering high-quality services that meet your expectations. Thank you for considering. I look forward to the opportunity to work with you. Blog: systemfixes.com My Certifications : VMC on AWS Master Specialist AWS Certified Solutions Architect Associate AWS Technical Essentials Training Certification VMware Certified Professional 6 - Data Center Virtualization VMware Certified Associate 6 – Network Virtualization Microsoft Certified Solutions Associate (MCSA 2012) Microsoft Certified Systems Administrator (MCSA 2003) Microsoft Certified Technology Specialist (MCTS) Microsoft Certified Professional (MCP) EMC Information Storage Associate (EMCISA) VCE Certified Converged Infrastructure Associate Cisco UCS Troubleshooting Boot Camp (UCSTSBC) Accredited Configuration Engineer (ACE) Exam - PAN-OS 7.0 Version edX Honor Code Certificate for Introduction to Linux by Linux Foundation CloudU Certification by Rackspace Cloud University cPanel & WHM Proficiency Certification by cPanel University Backup Academy Certified Professional

As a highly motivated cybersecurity enthusiast, I am committed to leveraging my expertise in IT infrastructure and security. Employing a proactive approach, my proficiency extends to delivering managed security services, specializing in Microsoft and Cloudflare solutions, and vulnerability management. And I'm Specialised in : • DDoS Protection Services for Web/ Game Servers. • Microsoft Security Solutions ( Intune / Azure Sentinel / Defender for Cloud, Office 365, Endpoints) • Cloudflare. • Tanium / Tufin / BIG ID Consultancy services. • Zscaler Internet Access and Private Access • Zscaler OWASP AppProtection • Endpoint Detection and Response - Integration and Deploy • Vulnerability Management • Attack Simulation • AWS, Azure Security Solutions • AWS Code Deploy and Code Build • Cyber Essentials and Essentials Plus UK (helps organizations to implement controls) • SIEM Deployment and Configuration ( Wazuh, Azure Sentinel ) • Azure, AWS Cloud infrastructure configuration and Support