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Cisco Linux Network Administration System Admin Windows Server
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Karim M.

@engkarimismail

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5.0
58

6.3

6.3

95%

✅ Senior Network & System Engineer | Security|VOIP

$50 USD / Hour

・

Flag of

Malaysia (10:19 PM)

・

Joined on July 22, 2024

・

2 Recommendations

$50 USD / Hour

・

✅ About Me I am an experienced IT professional with expertise in server administration, networking, virtualization, and security. My skill set spans managing server operating systems, configuring directory services, implementing DNS/DHCP solutions, and deploying virtualization platforms. I have a strong background in firewalls, scripting, containerization, and database management. Additionally, I specialize in mail servers, backup systems, and cloud technologies. With advanced networking skills, including Cisco routing, VLAN management, VoIP/IP telephony, and penetration testing, I am well-equipped to handle complex IT infrastructures. I am dedicated to delivering reliable solutions, ensuring data integrity, and enhancing system performance. ✅Send me now 24/7 Availability Unlimited Revisions Fast Response ✅ Server Operating Systems Windows Server (2003 to 2024) | Ubuntu | CentOS | Debian | RHEL ✅ Directory Services Active Directory | OpenLDAP ✅ DNS and DHCP Windows Server DNS | DHCP | Linux DNS | DHCP ✅ Virtualization Microsoft Hyper-V | VMware ESXi | vCenter | Proxmox VE ✅ File Servers IIS FTP | proftpd | FileZilla | FTP Server | Samba ✅ Web Servers Apache | NGINX | Microsoft IIS ✅ Scripting and Automation PowerShell scripting | Bash scripting ✅ Containers Docker | Windows Subsystem for Linux (WSL) ✅ Backup Systems Veeam Backup | Iperius Backup | UrBackup ✅ Mail Servers Mailcow | Microsoft Exchange (2000–2019) | MailWizz | Postfix | EXIM ✅ Database Servers MySQL | PostgreSQL | MariaDB ✅ Firewalls and Security MikroTik | PFSense | Cisco Firewalls ✅ Networking Skills Cisco Routing and Switching | VLANS | OSPF | VoIP and IP Telephony | Network Penetration Testing Access Control Lists (ACLs) Security (MITM Attack Mitigation) ✅ Recovery Services Password recovery for accounts and routers | Disaster recovery planning ✅ VOIP Service Freepbx | freeswitch | CME | IP TELEPHONY | 3CX SYSTEMS ✅ Cloud Service AWS, DigitalOcean, Hetzner, Azure, Google Cloud Platform, IBM Cloud, Oracle Cloud, Alibaba Cloud, Contabo, Seva

Verifications

On time

98%

On budget

96%

Accept rate

98%

Repeat hire rate

8%

Freelancer System Administrators Malaysia
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Portfolio

Portfolio

12346028
About the project OmniLeads installation: Comprehensive setup of the OmniLeads contact center solution on Linux, ensuring compatibility with the server environment. Configuration: Customization of OmniLeads features to align with your business needs, including IVR, agent management, call routing, and reporting. Integration: Setting up integrations with telephony systems (like SIP providers) and CRM systems if needed. Security and Optimization: Implementing best practices for secure and efficient operation, including firewall configurations, access control, and resource optimization. Troubleshooting and Support: Post-installation support for troubleshooting common issues and ensuring seamless operation. Products: OmniLeads, Linux Server (Debian or Ubuntu), VoIP services. Client Review: "Efficient and knowledgeable! Completed the OmniLeads installation and setup smoothly. Great support and easy to communicate with." " reactif, professionnel, rapide&quot

OmniLeads deploy and Configuration

12346043
About the Project This project involved the integration of an Ubuntu 20.04 LTS server with a Windows Active Directory environment. The primary tasks included configuring the Ubuntu system to join the Active Directory domain, enabling authentication for domain users, and ensuring seamless access to resources within the network. The project required precise setup and testing of network configurations, group policies, and access permissions to align with the client’s organizational security policies. The goal was to enable centralized management of user accounts while maintaining security and usability on the Ubuntu server. Skills System Administration Linux Configuration Active Directory Integration Ubuntu Server Management Network Security and Permissions Client Review "Delivered on time and with excellent quality! The integration worked seamlessly, and the setup was exactly what we needed. Great communication and attention to detail throughout the project."

Joining Ubuntu to Active Directory

12536428
Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

12528714
The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

12324224
About the project -RDP installing and configuration and troubleshooting. -Create remote access users accounts. -Secured connections implementations -Products: Windows, RDP, VPS, windows server. Client review: "He fixed the issue in just 10 minutes and demonstrated extensive knowledge. I will definitely connect with him again. "

Windows Remote Desktop Setup installation and configuration.

12324198
About the project -Setting up email server in VPS. -Installing Mailcow with docker compose. -Products: LINUX ,VPS. Client Review: "very good experience programmer!"

Installing mail server using Mailcow user interface in Linux

12346028
About the project OmniLeads installation: Comprehensive setup of the OmniLeads contact center solution on Linux, ensuring compatibility with the server environment. Configuration: Customization of OmniLeads features to align with your business needs, including IVR, agent management, call routing, and reporting. Integration: Setting up integrations with telephony systems (like SIP providers) and CRM systems if needed. Security and Optimization: Implementing best practices for secure and efficient operation, including firewall configurations, access control, and resource optimization. Troubleshooting and Support: Post-installation support for troubleshooting common issues and ensuring seamless operation. Products: OmniLeads, Linux Server (Debian or Ubuntu), VoIP services. Client Review: "Efficient and knowledgeable! Completed the OmniLeads installation and setup smoothly. Great support and easy to communicate with." " reactif, professionnel, rapide&quot

OmniLeads deploy and Configuration

12346043
About the Project This project involved the integration of an Ubuntu 20.04 LTS server with a Windows Active Directory environment. The primary tasks included configuring the Ubuntu system to join the Active Directory domain, enabling authentication for domain users, and ensuring seamless access to resources within the network. The project required precise setup and testing of network configurations, group policies, and access permissions to align with the client’s organizational security policies. The goal was to enable centralized management of user accounts while maintaining security and usability on the Ubuntu server. Skills System Administration Linux Configuration Active Directory Integration Ubuntu Server Management Network Security and Permissions Client Review "Delivered on time and with excellent quality! The integration worked seamlessly, and the setup was exactly what we needed. Great communication and attention to detail throughout the project."

Joining Ubuntu to Active Directory

12536428
Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

Over the past few weeks, as part of my freelancer career, I took on an email validation infrastructure project for a client from India, working on the MailTidy email list cleaner SAAS application. What started as a standard installation quickly evolved into a full-scale enterprise email validation system setup with custom SMTP integration, DNS configuration, and Laravel optimization! ? The Challenge? The client wanted a fully functional email validation system, but we encountered multiple issues: ✅ Laravel queue jobs were failing, causing delays in email processing. ✅ DNS records for SPF, DKIM, and DMARC needed proper configuration. ✅ The MailTidy system required custom SMTP integration for high deliverability. ✅ MySQL/MariaDB was struggling with large email validation requests (30K+ emails). ✅ The job_batches table had missing columns, causing database crashes. ? What I Delivered: ✅ Fully Deployed & configured MailTidy on Ubuntu VPS with all dependencies. ✅ Integrated custom SMT

Email Validation System Deployment

12528714
The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

The client had a Dell R740 server but no static IP, firewall issues, DNS conflicts, SSL errors, and missing PHP/MariaDB modules—basically, a freelancer's nightmare! ? But I turned it into a fully functional VPS with seamless email automation and bulletproof security. ? What I Delivered: ✅ Installed & configured Ubuntu Server 22.04 from scratch. ✅ Set up Webmin/Virtualmin with full LAMP stack (PHP 8.3, MariaDB, Apache, Bind, and Firewalld). ✅ Resolved DNS conflicts between Bind9 and Named Services to ensure a smooth domain resolution. ✅ Installed MailWizz & integrated Amazon SES for rock-solid email delivery. ✅ Replaced self-signed SSL with Let's Encrypt—no more "insecure site" warnings! ? ✅ Configured IP rotation with multiple IPs for email campaigns. ✅ Fine-tuned firewall rules & port forwarding for seamless SMTP, IMAP, and web access. ✅ Fixed PHP 8.3 & MariaDB conflicts for maximum stability. ✅ Implemented automated cron jobs for email list cleaning, campai

Local server with mailwizz deploy

12324224
About the project -RDP installing and configuration and troubleshooting. -Create remote access users accounts. -Secured connections implementations -Products: Windows, RDP, VPS, windows server. Client review: "He fixed the issue in just 10 minutes and demonstrated extensive knowledge. I will definitely connect with him again. "

Windows Remote Desktop Setup installation and configuration.

12324198
About the project -Setting up email server in VPS. -Installing Mailcow with docker compose. -Products: LINUX ,VPS. Client Review: "very good experience programmer!"

Installing mail server using Mailcow user interface in Linux

5.0 · 58 Reviews
Reviews
M

Setup mikrotik and mikhmon • $1,500 USD

work is well done on time. i want to continue to work again with Karim. he is serious person that like is job

Moussan Y.

@Moussan26

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Puteaux, France

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21 days ago

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Fix Linux Server-VM Connectivity • $600 USD

Karim is very easy to work with! All projects were delivered on time and seamlessly.

Robert R.

@Robinson6620

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Concord, United States

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29 days ago

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Sangoma PBX Ethernet Fix • $525 USD

Very knowledgeable, efficient and was great to work with. I would definitely use him for future projects.

Michael B.

@mwbasch

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Norcross, United States

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1 month ago

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Repair Mikrotik IPSec Tunnel • $50 USD

On top of his game! The absolute best! Period.

Danstan O.

@danstanongubo

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Nairobi, Kenya

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2 months ago

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Handset Remote Access Problem • $350 USD

I had the pleasure of working with Karim on a recent project and couldn’t be happier with the results. His communication was clear and professional, and he delivered high-quality work on time. Karim’s technical skill, attention to detail, and proactive testing ensured everything ran perfectly. I highly recommend him and look forward to working together again.

Chris F.

@Integracorp

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Brisbane, Australia

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2 months ago

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Experience

Network administrator

Jun, 2020 - Present

•

5 years, 4 months

MikroTik Routers and Wireless self employed

Jun, 2020 - Present

•

5 years, 4 months

One of my distinctive achievements includes repurposing an old desktop as a MikroTik server, demonstrating resourcefulness and a commitment to sustainability. This approach not only solved internet infrastructure problems but also reflected my dedication to finding efficient solutions, even in unconventional ways.

User Avatar

Mustafa Y.

@mustafa094

 ·

software engineer

Karim brings deep expertise in network and system administration, security, and IT infrastructure. His clients often highlight: Quick understanding of complex systems Effective problem-solving under pressure High-quality documentation and deliverables

Jun, 2020 - Present

•

5 years, 4 months

Freelancer

Jun, 2020 - Present

•

5 years, 4 months

Microsoft System Administrator

Jun, 2022 - Present

•

3 years, 4 months

As a Microsoft System Administrator, I managed network infrastructure and computer systems, including hardware, operating systems, and software. I installed, configured, upgraded, and repaired systems, handled user accounts and network services, and ensured system security. My role involved troubleshooting issues, performing updates and backups, and providing technical support to ensure reliable IT operations.

MikroTik server installer and administrator

Jun, 2020 - Present

•

5 years, 4 months

One of my distinctive achievements includes repurposing an old desktop as a MikroTik server, demonstrating resourcefulness and a commitment to sustainability. This approach not only solved internet infrastructure problems but also reflected my dedication to finding efficient solutions, even in unconventional ways.

Jun, 2020 - Present

•

5 years, 4 months

Education

Universiti Tun Abdul Razak

2021 - 2025

•

4 years

Bachelor's

Flag of

Malaysia

2021 - 2025

•

4 years

Qualifications

MikroTik Certified Routing Engineer

2025

MikroTik Co.

As an MTCRE, I am proficient in designing and optimizing routing architectures, troubleshooting complex network issues, and ensuring efficient network performance using MikroTik’s RouterOS and hardware solutions. This certification is essential for professionals aiming to handle large-scale network deployments and troubleshooting in diverse networking environments.

2025

MikroTik Certified Network Associate

2025

MikroTik Co.

As an MTCNA, I am proficient in setting up, managing, and securing network infrastructures with MikroTik technology, providing a solid foundation for advanced networking certifications and career growth in the networking field.

2025

International computer driving license

2022

ICDL Foundation

ICDL Certification (ICDL Foundation): Purpose: Certifies proficiency in using computer applications and technology. Modules: Includes Computer Essentials, Online Collaboration, Word Processing, Spreadsheets, Presentation, Databases, IT Security. Requirement: Passing exams for the various modules. Recognition: Globally recognized and enhances academic and professional credentials.

2022

Publications

Internet infrastructure towards sustainable development

Eng Karim Ismail

One of Karim's distinctive achievements includes repurposing old desktops as MikroTik servers, showcasing his resourcefulness and commitment to sustainability. This project solved internet infrastructure problems and reflected his dedication to finding efficient solutions. Karim successfully applied this idea in many villages, addressing issues like internet access shortages, e-waste, network security, and connectivity in remote areas. The repurposed desktops provide reliable network services.

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