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.
Linux
Ubuntu
NGINX
Linux System Administration
Email System
Email Deliverability
Hosting Setup
WordPress
Amazon Web Services
Udantha C.
Kaduwela, Sri Lanka
$55/hr
4.6
264 jobs
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. 🚀
MySQL
SSH
Odoo
PfSense
VPN
NGINX
Cloudflare
Cisco Certified Network Associate
Ubuntu
HTTP
Red Hat Certified Engineer
Web Server
CentOS
DigitalOcean
AWS CloudFront
Mahesh S.
Kandy, Sri Lanka
$40/hr
4.9
45 jobs
Expert in Email Configuration, Authentication & IT Systems Administration | 11+ Years Experience
I am a highly skilled IT Systems Administrator with 11+ years of experience in email configuration, authentication, deliverability, domain management, and IT infrastructure. I specialize in setting up, managing, and troubleshooting business email systems, ensuring secure, high-deliverability email communication.
💡 Email System Configuration & Management
✔ Google Workspace (Gmail for Business), Microsoft 365 (O365), Zoho Mail and many other
email platforms.
✔ Mailgun, SMTP, Postfix, Exim & Other Email Relay Services
✔ Transactional & Marketing Email Setup (Mailgun, SendGrid, Instantly.ai, Lemlist, etc.)
✔ Custom Email Domain Setup, Migration & Troubleshooting
🔐 Email Authentication & Security
✔ SPF, DKIM, DMARC Implementation & Optimization
✔ BIMI & MTA-STS Setup for Brand Protection
✔ Reverse DNS (PTR Records) & Dedicated IP Configuration
✔ SMTP Authentication & Secure Email Protocols (TLS, SSL)
🚀 Email Deliverability & Optimization
✔ Inbox Placement & Avoiding Spam Filters
✔ IP Reputation Monitoring & Blacklist Removal
✔ Domain Warm-up & Cold Email Best Practices
✔ Google Postmaster Tools & Microsoft SNDS Configuration
🌍 Domain Management, DNS Setup & Hosting Services
✔ Domain Registration & Transfer Management
✔ DNS Configuration (A, CNAME, MX, TXT, SRV, PTR Records)
✔ Hosting Setup & Migration (cPanel, Plesk, Cloudflare, AWS, etc.)
✔ CDN Integration & Performance Optimization
🖥️ IT Infrastructure & Systems Administration
I also have deep expertise in IT systems administration, virtualization, and troubleshooting, including:
✔ Microsoft Windows Server (Setup, Management & Troubleshooting)
✔ Microsoft Hyper-V & VMware (Virtualization & Failover Clustering)
✔ WSUS (Windows Server Update Services) for Patch Management
✔ Linux OS Installation & Server Configuration
✔ Remote IT Support for Windows, Linux & VMware
With my proven track record in IT infrastructure, email solutions, and domain management, I help businesses streamline operations, secure communication, and optimize system performance.
💬 Let’s discuss how I can improve your email setup, IT systems, and domain management!
Windows Server
System Administration
Microsoft Windows
Microsoft Active Directory
Technical Support
Virtualization
Email Deliverability
VMware Administration
IT Service Management
Network Administration
Linux System Administration
XAMPP Stack
Network Monitoring
Website Builders & CMS Consultation
Website & CMS Bug Fix
Hasitha J.
Pita Kotte, Sri Lanka
$20/hr
5.0
218 jobs
Hi, I'm Hasitha, a software engineer having extensive experience of over 7 years in software and web development, server administration and also a strong communicator with the ability to convey ideas clearly with an emphasis on client satisfaction.
My specialized areas are as follows.
◈ Server-related tasks
✅ Troubleshooting issues related to web servers (Apache, NGINX).
✅ Installation/renewal of SSL certificates.
✅ Troubleshooting Linux server-related issues.
✅ Configuration of LAMP/LEMP stack.
✅ Fixing 401, 403, 404, 502, and 503 HTTP errors.
✅ Configuration of Webmin, Virtualmin, WHM, and cPanel.
✅ Troubleshoot SSH access-related issues.
◈ WordPress websites
✅ Migration of WordPress websites from one hosting to another
✅ Troubleshooting WordPress website-related issues (Critical errors, outgoing emails not working, etc.).
✅ Set up SMTP email configurations.
✅ WordPress core, themes, and plugin updates.
✅ Payment gateway integrations.
◈ Email related configurations
✅ Google Workspace email set up.
✅ SMTP configurations for different web applications.
✅ Configuration of third-party SMTP providers such as AWS SES, SendGrid.
◈ DNS related tasks
✅ Configuring DNS (adding/modifying DNS records, updating nameservers) in different domain providers (GoDaddy, Namecheap, Google Domains, Bluehost, DreamHost, etc).
◈ Websites/Web application development
✅ Fix errors related to websites/web applications built using HTML, CSS, JavaScript, PHP, and MySQL.
✅ Build web applications using the PHP Laravel framework.
✅ Development of backend APIs using Java Spring Boot framework.
✅ Third party API integrations.
◈ Infrastructure management in different Cloud Computing Platforms
✅ Amazon Web Services (AWS)
✅ DigitalOcean
✅ Google Cloud Platform (GCP)
✅ Microsoft Azure
If you're looking for a dedicated and experienced developer/server admin who can deliver high-quality code and drive successful project outcomes, I'd love to chat with you. Let's work together to turn your vision into reality!
PHP
WordPress
Web Development
Laravel
Amazon Web Services
Amazon EC2
API
Email
Linux
SSL
DevOps
Java
Kubernetes
FinTech
Nadeesha R.
Colombo, Sri Lanka
$20/hr
4.7
60 jobs
✅ 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.
Server Virtualization
System Administration
NGINX
Microsoft Azure
DNS
SSL
Linux System Administration
Moodle
Postfix SMTP Server
Cisco Certified Network Professional
Learning Management System
LAMP Administration
Squid
Web Hosting
Network Engineering
Charitha B.
Nugegoda, Sri Lanka
$25/hr
4.4
238 jobs
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
cPanel
Ubuntu
Amazon Web Services
VMware vSphere
VMware Administration
WordPress
MySQL
SSL
GoDaddy
Amazon EC2
Linux System Administration
Web Hosting
LAMP Administration
System Administration
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