System Administration is a skilled job that requires expertise and reliability. A System Administrator takes care of the operations, maintenance and enforcement of a computer/information systems network, server and applications for clients. Improving performance, security and stability of the system are integral parts of their job. They also have to handle software upgrades or the installation of new hardware, and will provide guidance, technical support, and training to users.
For most organizations, be it large companies or small businesses, System Administration is absolutely essential in keeping their day-to-day operations running smoothly. This is because they need someone with the technical expertise to manage, maintain and keep their computer networks functioning properly.
Here’s some projects that our expert System Administrator made real:
- Network setup
- Security configuration & monitoring
- Vulnerability & security audit
- Server installation & maintenance
- Troubleshooting & error rectification
- Software upgrade & installation
- Database backup & restoration
- Performance optimization
In today’s digitally driven world, it is no surprise why System Administrators are in such demand. They are a reliable resource for organizations who want professionals who can handle operations both smoothly and efficiently. Companies now have no choice but to set aside a budget for hiring System Administrators – even if it means going digital and finding one on Freelancer.com.
At Freelancer.com, we understand how important it is for you to have qualified professionals working on your projects. We also understand that you may not always have the capacity or budget to hire one full time – this is why you should consider looking intoFreelancer.com where you can find quality System Administrators with different levels of experience in your area at an affordable price. Whether its a short term or long term project, our System Administrators will be up for the task anytime!
Now that you know how important it is to have an expert System Administrator working on your business’s IT systems, we invite you to post your own project on Freelancer.com and hire an experienced professional today!De 163,541 opiniones, los clientes califican nuestro System Administrators 4.87 de un total de 5 estrellas.
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We need a consultant, WITH PROVEN EXPERIENCE, in integrations with Microsoft Wopi to assist the development team in building a Word document integration with Office Online. I need assistance in setting up the WOPI server. Skills and experience required for this project: - Strong knowledge of Microsoft Office applications and their integration with WOPI servers - Experience in setting up WOPI servers - Ability to work within tight deadlines - Excellent problem-solving and troubleshooting skills - Strong communication skills to effectively collaborate with our team.
I am looking for a freelancer to create a script for setting up a MikroTik router VPN using SSTP and OpenVPN protocols. Requirements: - Experience with MikroTik routers and VPN configuration - Proficiency in scripting languages - Knowledge of SSTP and OpenVPN protocols Scope of work: - Develop a script for the entire setup of the MikroTik router VPN - Provide assistance with the VPN configuration Please note that I require help with the entire setup, so expertise in MikroTik routers and VPN configuration is essential.
I am looking for a Cisco networking expert who can configure my Cisco 800 Router to function as a dual WAN failover system. The primary use of the router is for Internet with VPN connectivity. Details: - Currently the router is being used in production with 1 WAN configured and a VPN Client configured which connects to an off-premise external VPN Server. - When WAN1 is down, i need it to switch to WAN2 and make sure the VPN Client is connected too. Requirements: - Configure the router to have the 2nd WAN, when WAN1 is down, it will automatically switch to WAN2 and reconnect the VPN Client. - Ensure that the failover process has minimum/reasonable downtime. - Provide advice and recommendations on the best configuration for optimal performance. - Please keep in-mind that this needs to ...
VMware virtualization Expert in NSX solutions 1. Port filtering of the servers. 2. Activation of the filtered policies during the customer's preferred downtimes. 3. Preparation and submission of a UAT (User Acceptance Testing) checklist for customer approval. 4. Implementation of any necessary corrections or amendments to configurations based on UAT feedback. 5. Final testing to verify the success of any failed or amended UAT checklist items. 6. Creation of as-built documentation. 7. Knowledge transfer (KT) sessions for the customer's team. 8. Acquisition of the Work Completion Report (WCR) from the customer for NSX. 9. Regarding the port filtering SHC had a communication matrix taken from the firewall. However, due to the installation of new servers, client doe...
I am looking for an Esci 6.7 expert to assist me with troubleshooting on my network setup. Skills and Experience required: - Expert level experience in Esxi 6.7 - Strong troubleshooting skills - Knowledge of network security implementation Specific Requirements: - The freelancer should have experience with specific network hardware and software that I have in mind. Please provide examples of previous work and relevant certifications.
Experienced VPS Developer Needed for Server Setup and Configuration Tasks: - Server setup and configuration for optimal website performance - Possible website migration to new VPS - Performance optimization for faster loading times Ideal Skills and Experience: - Strong knowledge and experience in VPS setup and configuration - Familiarity with Cyber Panel and PHP - Understanding of server technologies, particularly Linux and Windows Additional Information: - The specific server technology is not yet determined - Ongoing maintenance may be required after the initial setup and configuration Please provide examples of previous VPS projects and relevant experience when applying.
I am looking for a skilled professional to assist me with my cyber security project. Specific Aspect: Website security and hacks Specific Security Requirement: Preventing data breaches Ideal Skills and Experience: - Expertise in network security - Strong knowledge of data encryption - Experience in security policy development Additional Information: - I have specific security requirements and concerns - The main concern is preventing data breaches - Compliance with industry regulations is also important - Securing sensitive customer data is a priority If you have the necessary skills and experience in network security, data encryption, and security policy development, I would be interested in discussing this project further with you.
I am looking for a server with a variable IP for sending mass e-mails, with the function of resending unopened emails included. The level of automation required is simple operations. The server is not specified (shared host, VPS, or dedicated server; as this question was skipped). If you can provide this service and feel capable of meeting the above requirements, please contact me to discuss further. Thank you.
Setting up Home WiFi - I am looking for someone to help me set up my home WiFi network using a cable internet service. - I only need assistance with the initial setup and configuration, no ongoing maintenance is required. - The WiFi network will be used to connect my printer, PC, and phone. - The ideal candidate should have experience in setting up home WiFi networks and be familiar with cable internet services. - Knowledge of configuring devices such as printers and PCs to connect to WiFi is also required.
Configuring a hypervisor with Microsoft HyperV, Creating a private cloud with OpenStack, Configuring Docker containers, Designing a secure cloud architecture, Managing network security in cloud.
Project Title: High CPU Load Overview: I am experiencing a very high CPU load on my CentOS system and I am seeking assistance to identify the specific programs or processes causing this issue. Requirements: - Experience in troubleshooting high CPU load issues on CentOS - Strong knowledge of CPU monitoring and analysis tools - Ability to identify and optimize resource-intensive programs or processes - Familiarity with system performance tuning techniques - Proficiency in Linux system administration Deliverables: - Analysis of the current CPU load and identification of potential causes - Recommendations and implementation of optimizations to reduce CPU usage - Documentation of the troubleshooting process and solutions implemented Ideal Skills and Experience: - Proficient in CentOS system...
Write a script to monitor the health of your server using the commands from the PowerPoints on Security, DFIR and Backups as your base. Think about what info you care about, and how to make it easier for you to read or upload to your dashboard. Data is only good if you’re using it for something.
ESXI Networking issue I am currently experiencing connectivity issues with my ESXI 6.7 networking. Although no error messages are being displayed, I am unable to establish proper network connections. Skills and experience required: - Strong knowledge and experience with ESXI 6.7 networking - Expertise in troubleshooting connectivity issues - Familiarity with virtual networking and network configuration - Ability to diagnose and resolve networking problems efficiently
You need to write a script. There is a file with a list of pppoe clients, the script should disable clients that are located in this file. In secrets and in active connections. Functionality: - Firewall configuration - Bandwidth management - Network monitoring Requirements: - The freelancer should have expertise in Mikrotik scripting - I am open to any specific requirements or preferences the freelancer may have - The deadline for completing the script is flexible and can be discussed further with the freelancer. If you have the necessary skills and experience in Mikrotik scripting, please apply for this project.
Project Title: Problems with Google SPIF DKIM Description: I am experiencing an authentication failure issue with Google SPIF DKIM. I need assistance in resolving this problem and ensuring that my emails are being authenticated correctly. Skills and experience required: - Strong knowledge and experience with Google SPIF DKIM - Expertise in email authentication protocols and standards - Proficiency in troubleshooting and resolving authentication failure issues - Familiarity with Gmail's email service provider settings and configuration - Ability to analyze and diagnose authentication errors - Attention to detail to identify and fix any configuration errors Please note that I have not made any recent changes to my email settings or configuration, so the issue may be unrelated to any ...
I am in need of an AWS Server expert to help resolve performance issues with my CRM software. Specific requirements for the project include: - Advanced level expertise in AWS Server administration and troubleshooting. - Experience in diagnosing and resolving performance issues on AWS Servers. - Knowledge of best practices for optimizing server performance. - Ability to analyze server logs and identify potential bottlenecks. - Familiarity with CRM software and understanding of its server requirements. - Strong communication skills to effectively collaborate with our team and provide guidance on server optimization. If you have advanced level expertise in AWS Server administration and a track record of successfully resolving performance issues, we would love to hear from you. Please prov...
I am looking for a freelancer who can help me with my AWS 3-Tier design project focused on cost optimization. The ideal candidate should have experience in designing AWS architectures with a strong emphasis on cost efficiency. Requirements: - Develop a basic 3-Tier design that is optimized for cost - No additional AWS services integration required - The design should be able to handle less than 1,000 visits per day Skills and Experience: - Strong knowledge of AWS services and infrastructure - Experience in designing and optimizing cost-effective AWS architectures - Understanding of scalability and high availability concepts in AWS - Familiarity with best practices for AWS security and performance optimization If you have the skills and experience required for this project,...
I am looking for an expert who can install WHM (cPanel) on my new Almalinux VPS. I don't have any specific configurations or settings, so standard settings will be fine. However, I will need additional services post-installation, specifically configuration and troubleshooting. Ideal Skills and Experience: - Expertise in WHM (cPanel) installation - Strong knowledge of server configurations and settings - Troubleshooting skills to resolve any issues that may arise during the installation process
I am looking for a freelancer who can help me with the deployment of my AWS EC2 React site. The ideal candidate should have experience in AWS EC2 and React, and be familiar with the deployment process. Specifically, I need help with: - Setting up the CI/CD pipeline for my React application, as I already have it fully developed and ready for deployment. - Troubleshooting any issues that may arise during the deployment process. - Optimizing the performance of my site to ensure fast and efficient loading times. Requirements: - Experience with AWS EC2 and React. - Knowledge of CI/CD pipelines and deployment processes. - Strong troubleshooting skills. - Familiarity with performance optimization techniques.
I am looking for a freelancer who can help me set up Amazon Web Services (AWS), specifically EC2 (Elastic Compute Cloud). I need assistance in configuring and setting up the EC2 service. Skills and Experience: - Experience in setting up and configuring AWS EC2 instances - Knowledge of AWS security and networking - Familiarity with AWS management console and command line interface Additionally, I am in need of someone who can complete this project as soon as possible.
I am in need of a freelancer who can help me resolve an issue with the Qualcomm HS-USB QDLoader 9008 64 bit driver not installing on Windows 11 Pro. Troubleshooting Steps Taken: - Reinstalled the driver multiple times - Checked for driver updates Error Message Received: - Driver installation failed Driver Version: - Using the correct driver version for my operating system (Windows 11 Pro) Ideal Skills and Experience: - Proficiency in troubleshooting driver installation issues - Strong knowledge of the Qualcomm HS-USB QDLoader 9008 64 bit driver - Experience with Windows 11 Pro operating system - Familiarity with USB cables and ports troubleshooting
I am looking for a freelancer to create a new hosting server for my website. Operating System: Linux - I prefer Linux for the new hosting server. Purpose: Website Hosting - The primary purpose of the new server will be website hosting. Security Measures: Basic Security - I require basic security measures to be implemented on the server. Ideal Skills and Experience: - Proficiency in setting up hosting servers using Linux operating system - Experience in website hosting and server management - Knowledge of basic security measures for server protection
I am looking for a freelancer who can help me fix an issue I am experiencing with FTP. Specifically, I am encountering file transfer errors when trying to transfer small files (less than 500MB). Skills and Experience: - Proficiency in FTP protocols and troubleshooting - Experience with resolving file transfer errors - Familiarity with various FTP clients and servers, We use a custom VFP program to go out to our windows server log in and download the files. The app works for 90% of installations but some do not. It may be a security issue on the client side but I can’t figure it out. - Ability to identify and resolve issues with other FTP clients and servers If you have the necessary skills and experience to fix this FTP issue, please reach out to me.
Project Description: I am looking for a freelancer who can help me install the Astrill applet on my RAX120 router, which uses Linux as the operating system. I have the necessary login credentials for the router. Requirements: - Experience with installing applets on routers, preferably on Linux-based systems - Familiarity with the Astrill applet and its installation process - Knowledge of router configurations and network settings Skills: - Linux administration - Router configuration - Networking expertise Please note that I have not previously installed any applets on my router, so I would appreciate someone who can guide me through the process and provide clear instructions.
I am seeking a freelancer experienced in Active Directory forest migration to assist with my project. Requirements: - Knowledge and experience in migrating Active Directory forests with 100-500 users - Familiarity with various migration tools and the ability to suggest the most suitable option for the project - Availability for a long-term commitment, as the migration is expected to take more than 2 months Skills and Experience: - Proven track record in successfully completing Active Directory forest migration projects - Proficiency in selecting and utilizing migration tools, or the ability to quickly adapt and learn new tools - Strong understanding of Active Directory architecture and best practices - Excellent communication skills to effectively collaborate with the client's IT t...
I am looking for a system admin devops who can assist me with deployment and configuration management tasks. Requirements: - Experience in deployment and configuration management - Proficiency in Linux server administration Ideal Skills: - Familiarity with Ansible, Docker, and Kubernetes Please note that the client did not specify any specific tools or technologies for this project.
I am looking for a freelancer who can assist me with adding a Zabbix host SFTP power module to my Linux-based Zabbix server. Requirements: - Proficiency in Linux operating system - Experience with Zabbix installation and configuration - Ability to add and configure the SFTP power module - Understanding of advanced monitoring and alerting for the SFP power module, including up/down status, signal strength, temperature, and voltage Skills and Experience: - Strong knowledge of Linux - Expertise in Zabbix installation and configuration - Familiarity with SFTP power module integration - Experience with advanced monitoring and alerting in Zabbix If you have the necessary skills and experience, please reach out to me with your proposal.
Project Description: - I am in need of a skilled freelancer who can help me change the SMTP Port 25/tcp in my Linux VPS for security reasons. Our few websites got hacked and outgoing mail server has been blocked because of huge span traffic. - I have root access to my VPS, so the freelancer should be experienced in working with root access. - The main reason for changing the SMTP Port is to enhance the security measures of my server. - The ideal freelancer for this job should have: - Strong knowledge and experience in working with Linux operating systems. - Expertise in managing VPS configurations and settings. - Prior experience in changing SMTP Ports for security purposes. - Familiarity with network security protocols and best practices. - If you have the necessary skills an...
I am looking for a skilled professional who can help me upload my website code to a cloud hosting server. Server Type: Cloud Hosting - The website code needs to be uploaded to a cloud hosting server. Server Credentials: Partial Information - I have some information about the server credentials and access, but not all. Server Setup and Configuration: Assistance Required - I need assistance with setting up and configuring the server for my website. Ideal Skills and Experience: - Experience with cloud hosting and uploading website code to cloud servers - Knowledge of server setup and configuration - Familiarity with server credentials and access management - Strong problem-solving skills to troubleshoot any issues during the process.
I want to share the connection of my home computer without opening the ports. I have a VPS, I can open the ports of the VPS. I decided to buy a raspberry pi, installed the "squid" proxy on it, and reverse shell (ed) the connection to my VPS, this way I can forward the traffic. Now, I have access to my home wi fi on my VPS, I am forwarding the proxy to my vps on port 7775. So now on my vps, I can access the proxy on localhost:7775 ------------- what you need to do : you need to create a proxy server in node js that runs on my VPS, this proxy server forwards all the traffic to localhost:7775 . The main goal is to access the proxy being forwarded to the port 7775 to be accessed from outside. ------------- the proxy server needs to be written in node js, and it has to be d...
I'm in need of some help with network troubleshooting. Ideally, I'd like to receive remote support so I don't have to wait for someone to come on-site. This isn't an urgent issue, so it can be scheduled within a day. Hopefully I can find the right freelancer to help my business quickly!
I want to share the connection of my home computer without opening the ports. I have a VPS, I can open the ports of the VPS. I decided to buy a raspberry pi, installed the "squid" proxy on it, and reverse shell (ed) the connection to my vps, this way I can forward the traffic. Now, I have access to my home wifi on my VPS, I am forwarding the proxy to my vps on port 7775. So now on my vps, I can access the proxy on localhost:7775 ------------- what you need to do : you need to create a proxy server in node js that runs on my VPS, this proxy server forwards all the traffic to localhost:7775 . The main goal is to access the proxy being forwarded to the port 7775 to be accessed from outside. ------------- the proxy server needs to be written in node js, and it has to be dy...
I am seeking a freelancer to install and configure the Windows Server operating system on Azure. The project requires the following: - Installation and configuration of Windows Server on Azure - Specific configurations and applications to be installed along with the OS - Completion of the project within 1-2 days Ideal Skills and Experience: - Experience with Azure and operating system installation - Knowledge of Windows Server and its configurations - Ability to meet tight deadlines and work efficiently If you have the necessary skills and can complete this project within the specified timeline, please submit a proposal.
I am looking for a freelancer who can help me set up Sendy and upgrade the Sendy software on my Amazon EC2. Requirements: - Experience with setting up Sendy and upgrading the software - Knowledge of Amazon EC2 and its configuration - Ability to troubleshoot any issues that may arise during the setup and upgrade process Tasks: - Determine the current version of Sendy software - Set up Sendy on my Amazon EC2 - Upgrade the Sendy software to the latest version - Ensure that all email campaigns are successfully migrated and running smoothly Timeline: ASAP If you have the necessary skills and experience, please submit your proposal.
I Have a Dedicated Server behind a V Switch ad a ip Subnet with /24 - i want to use this IPs on my Cloud as well - also my Dedicated Server have a Firewall installed wich Provides DHCP and VPN so i want to use public ips in cloud i want to use my Dedicated Servers Firewall ( Opnsense) to connect my systems in the cloud.
AWS Project The client is looking for a freelancer who has experience with AWS services and can complete the project within a week. The specific AWS services required for this project are EC2, S3, Route 53, and CloudFront. The client already has an existing AWS account. Ideal Skills and Experience: - Proficiency in AWS services, specifically EC2, S3, Route 53, and CloudFront - Experience in setting up and configuring AWS resources - Knowledge of DNS management and routing using Route 53 - Familiarity with content delivery networks (CDN) and CloudFront - Ability to work efficiently and complete the project within a tight deadline Please note that the estimated timeline for the completion of this project is less than 1 week.
I am looking for a freelancer who can fix the problem I am experiencing in WHM after updating from CENT OS to Cloud Linux. Specific Problem: - Website is not working after the update Troubleshooting Steps: - I have tried some troubleshooting steps, but none have worked Preferred Resolution Timeline: - I need this issue to be resolved immediately, within 24 hours Skills and Experience Required: - Strong knowledge and experience in WHM and server administration - Expertise in troubleshooting and resolving website issues - Familiarity with CENT OS and Cloud Linux updates If you have the necessary skills and can resolve this issue within the given timeline, please submit a proposal.
I am looking for a freelancer who can help me with the following project: Syncing a Postgres database between Windows and Linux in real-time Skills and experience required: - Strong knowledge and experience in working with Postgres databases - Proficiency in both Windows and Linux operating systems - Expertise in database synchronization and replication - Familiarity with real-time data syncing and streaming technologies - Ability to troubleshoot and resolve any potential issues that may arise during the syncing process - Excellent communication skills and ability to work collaboratively with a remote team
I am looking for someone with expertise in Fortinet firewall rules to help me set up both inbound and outbound rules for my network. I need all traffic types to be filtered, and the rules should apply to specific devices and IP addresses. Ideal Skills and Experience: - Knowledge of Fortinet firewall rules and configurations - Experience in setting up both inbound and outbound rules - Familiarity with filtering all traffic types - Ability to apply rules to specific devices and IP addresses
Linux Server Backup and Migration Backing up my entire Linux server and migrating it to a new server. Requirements: - Expertise in Linux server administration and backup procedures - Experience with Ubuntu server - Knowledge of server migration processes - Familiarity with data backup and restoration techniques Tasks: 1. Perform a full server backup to ensure all data and configurations are preserved. 2. Assist in setting up a new server for migration. 3. Migrate the backed up data to the new server, ensuring all configurations and settings are properly transferred. 4. Test the migrated server to ensure everything is functioning correctly.
Project Description: Moodle Email Configurations - I am looking for someone who can assist me with the email configuration setup for Moodle. - I need assistance with setting up an email server for my Moodle platform. - I have 1-5 email accounts that need to be configured. - The ideal freelancer for this job will have experience with Moodle email configurations and email server setup. - Knowledge of SMTP, POP3, and IMAP protocols is required. - The freelancer should be able to troubleshoot any issues that may arise during the configuration process. - Strong communication skills and the ability to provide clear instructions and documentation are important. - The project should be completed within a reasonable timeframe and within the specified budget. - Please provide examples of previous M...
I am looking for a freelancer who can help me fix a Cloudflare 522 Error that I am experiencing on my website. Requirements: - Experience with Cloudflare and resolving error codes - Familiarity with server settings and configuration - Knowledge of the cause of the Cloudflare 522 Error and how to fix it If you have experience with fixing Cloudflare errors and can confidently diagnose and resolve the issue, please reach out to me.