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 163,409 opiniones, los clientes califican nuestro System Administrators 4.87 de un total de 5 estrellas.
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ya tengo instalado kalix linux es mi empresa nesesito monitorear mi propios equipos , nesesito todas las funcionalidaddes en red local y que me enseñen a operarlo y me lo dejen operativo con mis propias pc recibo propuestas en inbox
I had big table which had over 200g of data inside my db mysql centos7 , I wanted to check it inside phpmyadmin but I rebooted my server by mistake , until now its locked , I need to extract the .sql from that table , only experts don't waste my time ....
Leistungsstarke, agile Boards Scrum Boards: Scrum Boards helfen agilen Teams bei der Aufteilung großer, komplexer Projekte in überschaubare Arbeitsblöcke. Teams können konzentriert arbeiten und schneller Ergebnisse liefern. Kanban Boards: Vielseitige Kanban Boards helfen Agile- und DevOps-Teams, Workflows visuell darzustellen, Work in Progress einzuschränken und die Effizienz im Team zu maximieren. Für den schnellen Einstieg gibt es Vorlagen, die du nach Belieben anpassen kannst. Du hast die Kontrolle: Jira Software lässt sich flexibel an die Arbeitsweise deines Teams anpassen, egal ob es sich um Scrum, Kanban oder etwas anderes handelt.
I am looking for a freelancer to set up a UniFi network for my medium-sized area of 1000-5000 sq ft. The network will primarily connect other IoT devices. I require standard security features such as WPA/WPA2. Skills and experience needed: - Experience in setting up UniFi networks - Knowledge of IoT devices and their connectivity requirements - Proficiency in configuring security features such as WPA/WPA2
I am in need of a Cisco expert who can troubleshoot configuration issues with Cisco EPNM. Unfortunately, I do not have access to any technical support or resources for this problem. I am looking for someone who can resolve this issue within 24 hours. Skills and experience required: - Strong knowledge and experience with Cisco EPNM - Expertise in troubleshooting configuration issues - Ability to work independently and efficiently to meet the tight timeline
I've activated UFW and installed SSL certificate on the server. Now I cannot SSH and SFTP. I read that i need allow port 22 which I did not, but now Im not able to access my server via Putty. Interested please MESSAGE me "I am able to do it right now"
I am looking for a freelancer who can assist me with setting up EKS and integrating Hashicorp Vault on the EKS setup via Crossplane. Requirements: - Experience with setting up EKS and integrating Hashicorp Vault - Knowledge of Crossplane - Ability to guide and assist in setting up EKS for a beginner in Crossplane Specifically, configure the following: A Vault server (in the same cluster) A Crossplane installation with AWS provider on EKS Provision a S3 bucket through Crossplane. Publish bucket information as a Vault secret. Access the published information in Vault from a pod using Vault Agent Injector Skills needed: - Experience with EKS setup - Familiarity with Hashicorp Vault - Knowledge of Crossplane at a intermediate or expert level
Seeking a skilled and experienced DevOps Engineer for a short-term contract. The primary focus of this role is to review and optimize our current server setup, including Nginx configurations, PHP-FPM settings, and database architecture, to enhance the scalability and performance of our application. Tasks: - Conduct a comprehensive review of our existing server infrastructure. - Analyze and optimize Nginx configuration for improved performance and reliability. - Review and fine-tune PHP-FPM settings to ensure optimal resource utilization and response times. - Assess our current database setup (MySQL/PostgreSQL/etc.) for scalability and performance bottlenecks. - Provide recommendations for scaling our application infrastructure to handle increased load. - Implement best practices for serve...
Install a Windows application on a VPS Windows 2016 Server and check this application for proper functioning. Knowledge of VPS under Windows 2016 is therefore required.
Project Description: I am in need of an experienced email troubleshooting expert to help resolve issues with my existing business email on Gmail. I use BlueHost for webhosting and email that forwards to Google Workspace. Skills and Experience Required: -BlueHost administration - Proven experience in troubleshooting email issues, specifically with Gmail - In-depth knowledge of Gmail's email sending and receiving processes - Ability to diagnose and resolve problems related to email not sending or receiving - Familiarity with common login issues and the ability to troubleshoot and resolve them efficiently - Strong communication skills to effectively understand and address the specific email troubleshooting needs of my existing business - Efficient problem-solving skills to identify a...
Hello, we lloking to hire an linux expert for UBUNTU VPN Installation for Multi IP Purpose of the VPN Installation: - Multi-location IP masking Level of Technical Knowledge: - Advanced VPN Protocols: - OpenVPN I am looking for an experienced freelancer who can help me with the installation of a VPN on my UBUNTU system. The primary purpose of the VPN is to mask my IP address and provide multi-location IP masking. Ideal Skills and Experience: - Advanced technical knowledge in VPN installation and configuration on UBUNTU - Expertise in working with OpenVPN protocol - Familiarity with UBUNTU operating system - Ability to troubleshoot and resolve any issues that may arise during the installation process If you have the necessary skills and experience, please submit your proposal. Thank...
- Manage Servers through the SSH protocol - Manage IPv4 Subnets - Manage Geo Location of prefixes - Implementation of IPv4 Proxy HTTP, Socks5, UDP (HTTP is Socks5) - Maximize utilization of the Debian 11 and 12 operating system. - Install is configure Bird (BGP) - Install and Configure 3Proxy - Authentication by allowed IPs - User authentication is password - Configure Firewall rules (inbound and outbound rules) - Do not allow the most common types of leaks (mainly DNS leaks). - Cron (release memory cache every 5 minutes). - Band control - API for external integration - Integration module for WHMCS The system must be developed in PHP 8.2 or newer using PSR good practices.
I am seeking a Linux Ubuntu expert to assist me with the installation and configuration of my Ubuntu system. Specific tasks include: - Installing desktop UI version on my ubuntu ( lxde ) - Configuring VPN with openvpn or surfshark - Set firefox - Running 2 firefox ( with ip differente by vpn ) Ideal skills and experience: - Strong knowledge of Linux Ubuntu - Experience in system installation and configuration The project is a one-time project and does not require ongoing support.
We are looking for an AWS expert to optimize the cost of my low-usage taxi app. The attached image shows the existing billing. The app usage is very low, with less than 1000 orders posted and less than 30 completed orders per month. But the scope of the app is to handle minimum 60k to 100k in the next 3 months. the upcoming months to handle 500k+ WE need an expert to: Analyze the current AWS usage and identify areas where costs can be reduced. Recommend the best server configuration for the app. Implement the recommended changes. Requirements: Experience with AWS cost optimization Experience with AWS server configuration Responsibilities: Analyze the current AWS usage Identify areas where costs can be reduced Recommend the best server configuration for my app Implement the recommende...
Server Maintenance and Administration I am looking for a freelancer who can assist me with the following tasks related to server maintenance and administration: - Security monitoring and management: I need someone who can regularly monitor the security of my server and manage any potential threats or breaches. Service Requirements: - Ongoing service: I require ongoing assistance with server maintenance and administration. Initially, I would need the freelancer to provide their services once every 15 days, and later once a month. Server Software: - Windows & .Net - Ubuntu Ideal Skills and Experience: - Experience with security monitoring and management. - Knowledge of Windows and ubuntu server software. - Familiarity with server maintenance and administration tasks. If you are ...
I am looking for someone to help me debug an issue with accessing an EC2 instance via SSH. I am using Linux to connect to the instance, and I am receiving a "Connection timed out" error message when trying to connect. I have already checked my security group rules to ensure SSH traffic is allowed. Skills and experience required for this job: - Strong knowledge of Linux operating system - Experience troubleshooting and debugging SSH connection issues - Familiarity with EC2 instances and security group rules
I am looking for a freelancer who can help me configure Haproxy settings for proxying purposes. I have a specific configuration in mind and I need someone with experience in Haproxy to implement it. The estimated load my server needs to handle is small, with less than 5000 users. Ideal Skills and Experience: - Proven experience in configuring Haproxy settings for proxying purposes - Familiarity with different Haproxy configurations and best practices - Knowledge of server load balancing and optimization techniques - Strong troubleshooting and problem-solving skills - Excellent communication and collaboration skills to work with our team.
I am looking for a skilled DevOps professional who can assist me in transferring and deploying all of the resources on my AWS account. Specific services and applications currently being used on my AWS account include EC2 instances. I prefer an automated deployment method using CI/CD tools. While there are no specific requirements or constraints related to the migration process, cost is an important consideration for me. Ideal skills and experience for this project include: - Strong knowledge and experience with AWS services, particularly EC2 instances - Proficiency in CI/CD tools and automation for seamless deployment - Ability to optimize cost and provide cost-effective solutions - Excellent problem-solving skills and attention to detail - Effective communication and collabo...
I have a Mern project that will be hosted on aws, i would like a security consultation and possible follow up work. Your focus will be on proactivley suggesting security provisions and grading those suggestions as, essential, conventional, reccomended, optional and good to consider when you have a 1,000,000 users etc. lol
Fix site app not loading on VPS - Type of site app: Custom-built - Server hosting access: Yes - Error message: No error message, the page just won't load I am in need of a skilled developer who can fix the issue with my site app not loading on my VPS. The site app is custom-built and I have access to the server hosting the VPS. There is no error message displayed, but the page simply won't load. Ideal Skills and Experience: - Strong experience in troubleshooting and resolving issues related to custom-built site apps - Proficiency in working with VPS hosting environments - Knowledge of server configurations and settings - Ability to diagnose and fix issues without relying on specific error messages If you have the expertise and experience required to fix this issue, please su...
I am looking for a freelancer who can help me with my nginx proxy project. The purpose of using nginx proxy is to serve as a web server and reverse proxy. Requirements: - I have specific requirements for the nginx configuration that need to be met. - The expected traffic load on my server is low, with up to 1000 visitors a day. Ideal Skills and Experience: - Experience in configuring nginx as a web server and reverse proxy. - Knowledge of load balancing and high availability, as well as caching and performance optimization. - Understanding of server traffic management and scalability. If you have the expertise and skills required for this project, please reach out to discuss further details.
I am looking for a freelancer who can help me with reinstalling and reconfiguring the Linux (Cent OS or Debian) and also WHM/Cpanel on two servers for my existing business. Requirements: - Experience in installation, configuration and optimization of Linux for speed optimization. - Experience with WHM/Cpanel installation and configuration - Knowledge of server management and troubleshooting - Ability to work independently and efficiently If you have the necessary skills and experience, and are available to work on weekends, please submit your proposal. Thank you.
I want expert here , my kamailio in 60 sec sending ack for supplier if no reply within 60 seconds kamailio or freeswitch is hang up calls , I don't want my kamalio to hangup any call unless customer did hangup or supplier
I am looking for a developer to create a HyperV module for WHMCS with specific functionality for VM creation and management. The module should have basic functionality for the user interface, and it only needs to be compatible with WHMCS. Ideal skills and experience for this project include: - Strong knowledge of HyperV and WHMCS - Experience in creating modules for WHMCS - Familiarity with VM creation and management - Ability to work independently and deliver high-quality code
I am looking for a freelancer who can help me with an issue regarding the local printer not redirecting on my Windows operating system using RDP 10.0 or newer. Specifically, I am trying to connect my VPS Servers to a printer. Like terminal works, ANY Fixed Cost software under reasonable price Skills and experience needed: - Strong knowledge and experience with Windows operating system - Proficiency in Remote Desktop Protocol (RDP) 10.0 or newer - Familiarity with VPS Servers and printer connectivity issues - Troubleshooting skills to identify and resolve local printer redirection problems
I am looking for a freelancer who can help me with my project to implement the separation of public and private DNS in my small network of 1-50 devices. Currently, I have 2 DNS zones. Furthermore, add the VMs to active directory, and deploy antivirus on the VMs. Also have Knowledge of Suricata and Mod security custom rules. Note: AD is windows and other VMs are Ubuntu. Time wasters stay away please. Skills and Experience: - Strong knowledge of Active Directory and DNS - Experience with network security and administration - Familiarity with DNS zone configuration - Ability to work with small-scale networks - Know how to write suricata and mod security rules - Attention to detail and ability to follow instructions
Proxmox to New Server, setup proxmox and setup Cpanel and move all data quickly between 2 nvme disk servers proxmox to proxmox and configured
Hi there, I am in the process of building my first DIY home nas/server. I don't have experience building PCs or configuring NAS software, but have spent a lot of time learning about it all over the past few months. I have begun purchasing the parts for my build. You can see my parts list here: The list shows which parts I have already purchased. In short, I want to create a NAS in a RAIDZ1 config, with 8TB usable space (excluding boot + cache drives). I think the way to go is TrueNAS Scale, but I have also been recommended unRAID. I don't have any experience with this. My use-case is media storage and music streaming, probably using Plex, Jellyfin, Enby or Roon. I may also want to dabble with VMs as I get more advanced. Do you think you could help? The ideal candidate s...
I have HP switches model HP 1920 JG927A and HP 1910 JE006 I want to learn configuring them. I tried to learn through Youtube and web articles but problem with this approach is that we could not learn a complete solution and I can't ask question to understand further. So here you have opportunity. What I expect: You will come online and in a voice call you will guide me all options available to configure. You will advise me to make things available to setup our test environment before starting practical learning. Here are menu options that I can see in HP and we will be exploring: - Device ○ Port Management ○ Port Mirroring ○ RMON ○ SNMP - Network ○ VLAN ○ VLAN Interface ○ MSTP ○ Link Aggregation ○ LACP ○ LLDP ○ ARP Management ○ ARP Anti Attack ○ IGMP Snooping ○ MLD Snooping ○ IPv4...
I am looking for someone to help me transfer my family e-mail domain / exchange server from my current hosting provider to a new one. I have had my exchange accounts hosted by ReadyHosting for several years and they are terminating support of Exchange. I have two exchange e-mail accounts and a dozen or so IMAP e-mails. I need to choose a new host and decide whether to continue Exchange accounts or transition to Google, or IMAP. I've got about 11gb of e-mail history to migrate. Skills and Experience: - Experience with exchange server migration - Knowledge of different hosting providers and their requirements - Ability to troubleshoot any issues that may arise during the transfer - Familiarity with data migration processes to ensure a smooth and successful transition
Secure client facing AWS environment I am looking for a skilled AWS developer to design and build a secure client facing environment template which must accept and manage business confidential information to support a SaaS analytics tool. We anticipate using the following AWS services: - EC2 - S3 - RDS The project requires advanced security measures to ensure the highest level of security compliance. The project needs to be completed within 2 months.
I am looking for someone to help me in configuring an Exim4 mail server on my CentOS Linux operating system with IP Rotation. Also, I would like detailed explanations on the functioning of email sending in the Exim4 MTA on, the processing of logs, and how we can manage retry timing and sending speed on call and step-wise documentation of the setup process.
Project Description: Install / Configure CrushFTP Operating System: Linux I am looking for a freelancer who can install and configure CrushFTP on a Linux operating system. You MUST have previous experience with CrushFTP as I require a shared user database setup and account limitations setup specific to CrushFTP User Accounts and Permissions: - I need assistance in setting up user accounts and permissions for CrushFTP. Specific Configuration Settings: - I have specific requirements for the configuration settings of CrushFTP. Skills and Experience: - Experience in installing and configuring CrushFTP on Linux OS. - Knowledge of setting up user accounts and permissions in CrushFTP. - Familiarity with configuring specific requirements for CrushFTP. If you have the necessary skills and e...
Cyber Security Expert Needed Immediately - Specific aspect of cyber security: Network Security - Current level of organization's cyber security measures: Highly Secure - Assistance needed: Immediately - Ideal skills and experience: - Strong knowledge and experience in network security protocols and technologies - Proficient in identifying and mitigating potential network vulnerabilities - Familiarity with industry best practices and compliance standards - Ability to conduct thorough network security assessments and audits - Experience in developing and implementing robust network security strategies and policies - Proven track record in handling network security incidents and responding to cyber threats promptly - Excellent communication and problem-solving skill...
I need a freelancer to help me with creating a Bash script as I am encountering execution errors with my current script. The purpose of the script is to automate tasks. I have a specific deadline for the completion of this project, which is within 24 hours. Ideal skills and experience for this job include: - Strong knowledge of Bash scripting - Experience in troubleshooting and fixing execution errors - Understanding of task automation techniques - Ability to work under tight deadlines and deliver high-quality results quickly
I am looking for a freelancer who can analyze and filter TS streams on the Linux platform. The ideal candidate should have experience in the following: - Advanced filtering options for TS stream analysis: - i want analzye TS live streams from DVBS2 then fillter ECM income from broadcast and include more services then allow only clear ECM and remove any extra services attached with it, after that get clear video and audio - live stream will be UDP or TCP both option possible i can delivery The project requires the following features: - need to be on linux ubuntu18 note/ important is analyze ECM and remove all extra services then allow only ECM which responsible for decrypt stream If you have the necessary skills and experience, please submit your proposal. Thank you.
Project Description: I am looking for someone to help me in configuring an Exim4 mail server on my CentOS Linux operating system. Also, I would like detailed explanations on the functioning of email sending in the Exim4 MTA, the processing of logs, and how we can manage retry timing and sending speed and step-wise documentation of the setup process.
If you have real expertise in Linux, Nginx, Proxmox, Nagios, please send us your references. We're looking for someone to coach us in managing our servers. If you can't prove that you've mastered these classic server management tools on a day-to-day basis, please don't apply.
reconfigure the existing firewalls - renew all certs (opnsense, email, connect) - proxmox4 cant connect to the update server, should work - opnsense4 cant reach update server - 102 is the ap and file network, 103 for - make sure new domain email connect to the email server optional: is possible to get a complete list of all Rules ?
Seeking to hire travel nurses, licensed practice nurses, and Nurse assistants for a healthcare project. Skills and Experience: - Must be a registered nurse in the US, licensed practice nurse, or Nurse assistant specialties include ICU, Stepdown Cath lab, labor and delivery, medical surgical, long-term care, nursing homes, assisted living. - Experience in healthcare settings required - Strong communication and interpersonal skills - Ability to work well in a team - Organizational skills and attention to detail - Ability to handle high-stress situations Project Details: - Immediate need for healthcare professionals - Project duration is more than 3 months - Flexible work schedule - Competitive compensation Responsibilities: - Provide high-quality patient care - Collaborate with healthcare...
Need devops for onetime setup for aws to deploy springboot project AWS Elastic bean stalk EC2 S3
I am looking for a freelancer who can help me reconfigure my VPS Ubuntu 20.04 that already has WHM installed. The specific configurations I need for my VPS include: - Firewall settings - Network settings - Server optimization I have root access to the VPS, so the freelancer will be able to perform the necessary tasks. The purpose of the PHP scripts that I need running on the VPS is for an other application. Ideal skills and experience for this job include: - Strong knowledge of VPS configuration and administration - Proficiency in Ubuntu 20.04 and WHM - Experience with firewall settings, network settings, and server optimization - Expertise in PHP scripting and running applications If you possess these skills and are confident in completing this project, please submit your proposal.
I am looking for a freelancer who can provide assistance with AWS and cloud computing. Requirements and Goals: - I am open to suggestions and do not have any specific requirements or goals for my AWS project. - I just need general assistance in setting up and managing my AWS services. Timeline: - I have a tight deadline for this project and require it to be completed within 4 days. Ideal Skills and Experience: - Strong understanding and experience with AWS and cloud computing - Proficiency in cloud computing and the ability to set up and manage AWS services efficiently. - Excellent problem-solving skills and the ability to troubleshoot any issues that may arise during the project. If you have the necessary skills and can meet the tight deadline, I would love to hear from you. Please p...
Very urgent - My Contabo server is down? even I am not able to login my plesk. If you have experience then fix now.
I am looking for a skilled and experienced Server Admin who is very familiar with Linux, Nginx, PHP-FPM, CPU, and MEMORY. Tasks: - Troubleshooting and debugging server issues - Optimizing server performance Requirements: - Strong knowledge and experience in Linux, Nginx, PHP-FPM, CPU, and MEMORY - Ability to troubleshoot and debug server issues efficiently - Experience in optimizing server performance Maintenance: - Regular server maintenance is required Communication: - Preferred method of communication for discussing server-related issues is chat messaging.