Systémový administrátor Jobs
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!Od 157,816 recenzí, klienti hodnotí našeho pracovníka System Administrators 4.87 z 5 hvězd.
Zaměstnat System Administrators
Our windows server, IIS is high CPU due to php load See screenshots Required expert to assist in route cause of this issue causing high CPU usage To discover source of the php process Id causing this to optimise and improve server performance I seen worker processes, and I attended to them Nothing else showing but still high CPU Please reach me if you can help Ongoing work available if you can solve this Thanks Ally
Looking for someone to complete an new setup of AzureAD and Intune. It's a small compagny (10 users) so nothing has to be very fancy. User are already created in AzureAD. Setup AzureAD security and prerequis. Setup AutoPilot in Intune (Software, security, policies, VPN) - Install some software (Office, Adobe, Chrome, Etc...) - Create the VPN - Create local admin user - Rename the administrator, change the password and disable it. - Setup Autoconfig for OneDrive - Set language, etc We will discust about the policy that you will suggest to me. Create a Small network in AzureAD for future virtual server Setup VPN for client in AzureAD Setup VPN between AzureAD and Unifi Gateway (Office) Add a QNAP to AzureAD IMPORTANT: Has to be setup for June 9th. Thanks!
We have a Web server currently running as droplets on DigitalOcean and we seek to move it to a dedicated server We seek a web server expert to: - Review DigitalOcean droplets and port these to a new dedicated ubuntu server - Add backup and optimise settings - add support for SSH certificate access (https) - Add support for TCP/IP socket based data push/pull - Support porting FTP/FTPS and/or associated APIs through Postman - Understand how Mobile Apps interact via APIs and server to portal - Understand how We also have a second server we'd like to port that has MongoDB / MEAN with React front end also to be ported Only people with System Admin experience porting servers and adding security certificates / domain structures (not coders) and link domains need apply If you don't ...
I am looking for a skilled freelancer to create a complete VPN solution that can link our two offices in Cameroon and the USA. We require a high-speed connection of over 50 Mbps and need a complete solution as we do not have an existing VPN infrastructure in place. The project needs to be completed ASAP. The ideal freelancer should have expertise in VPN concentrators and networking equipment. Specific skills and experience required include: - Experience in setting up VPN concentrators for large-scale networks - Knowledge of network equipment and security protocols - Ability to troubleshoot and resolve technical issues - Strong communication skills to ensure smooth collaboration between our teams in Cameroon and the USA.
Good day, We are looking for a network and systems engineer to work overnight's in the Eastern USA time zone for a small ISP. You should be skilled in the following: WAN / BPG / VPLS / MPLS Mikrotik and Cisco switches routers Windows Server / hyper-v / active directory. The ideal candidate will be self starting, taking initiative and filing detailed reports in our ticketing system for both internal and external issues. Hours of work are flexible but generally between 8pm to 6am EST.
I need a freelancer to setup a cloud network for my business. The ideal candidate should have experience in cloud network setup and management network related issues that can occur with various services. Cloud Services: - experience with API management services for my business. Related to monitoring logs, content delivery setup. Skills Required: - Experience with cloud network setup and management - Knowledge of API management services.
I am experiencing a redirection issue after installing an SSL certificate on my DigitalOcean Apache server, which hosts multiple domains. When I try to access my website, it redirects me to a different domain. The error message states that the server cannot prove its identity and that the security certificate belongs to another domain. This problem may be due to misconfiguration or potential interference from an attacker. To ensure your bid is considered, please include the statement "I am okay with 600" at the beginning of your bid if you are comfortable with the budget of 600. Bids without this statement will not be taken into consideration.
I am looking for a freelancer to set up a server cluster primarily for web hosting. I am open to their expertise when it comes to the hardware requirements for the servers. The ideal freelancer will be knowledgeable in server clustering and have experience setting up clusters with 2-5 servers.
I am looking for a freelancer who can help me with my FreePBX Dynamic Routing project. My current setup is a Single Server. I need a developer who can set up a mySQL database to capture caller inputs in order to enable dynamic routing. I require 2-4 different routing options. The contractor will only be able to access the system through me I don't have remote access. Also, the person will need to walk me through each step of development and implementation. Ideal skills and experience for this job include: - Strong experience with FreePBX and mySQL - Knowledge of dynamic routing - Ability to create customizations and integrations when necessary - Excellent communication skills and ability to work independently
I am in need of assistance setting up a Wifi Bridge, and I have the necessary login credentials. I am considered a beginner when it comes to technical knowledge, so I am looking for someone with experience to help me out. The project will involve setting up a wireless bridge connection between two devices, allowing them to communicate over a secure connection. The ideal freelancer for this project should have previous experience setting up and troubleshooting Unifi Wifi bridge connections, a working knowledge of networking principles and protocols, and the ability to explain technical concepts to a novice in an easy-to-understand manner. I have two 2 x Ubiquiti Unifi UAP-AC-M-PRO Outdoor 1750Mbps access points with PoE adapters; the internet is via Starlink, both end points have electri...
VMWare Expert to look at an existing infrastructure network and diagnose an issue with slow transfer speeds. More details: What type of infrastructure network do you have? Virtual What is the primary objective for reviewing the infrastructure network? Troubleshooting How soon do you need your project completed? ASAP
I am looking for a freelancer to help me with architecture of a complex system that requires data management as the main purpose. The specific feature needed for the system is real-time data processing, which demands scalability and security. The preferred programming language for the project is open to suggestions. Ideal skills and experience for the job: - Strong background in system architecture and data management - Proficiency in real-time data processing - Understanding of scalability and security protocols - Ability to work collaboratively and effectively communicate with the team.
I am looking for an experienced AWS expert to help me solve an issue with VPC connectivity for my existing business's PostgreSQL database on AWS RDS. The main problem I am experiencing is that I am unable to connect to the RDS instance. The objectives: - Lambdas in the VPC must be able to connect to RDS - Lambdas in the VPC must be able to connect to the internet (to call 3rd party APIs) - Approved IP's must be able to connect to the RDS instance Skills and experience needed: - Strong knowledge of AWS services, particularly RDS and VPC - Extensive experience troubleshooting connectivity issues in AWS - Proficiency in PostgreSQL database management - Familiarity with security group and subnet configuration - Excellent communication skills and ability to provide clear explanati...
Failed to power on virtual machine - .vmdk was not found gettting issues on vmware mechine any one know the issues and fix on remote then ping me Note: Check screenshort for batter clarification
Digitalocean Cloud Load Balancing and Optimization Handle High Traffic on different integrated web-based systems
Microtek Setup Configuration and Ongoing Maintenance for Medium-Sized Network I'm looking for a freelancer who can help me with the configuration of my Microtek setup for my medium-sized network of 11-50 devices. The specific service I need is configuration, including setting up the necessary software and hardware to optimize the performance of my network. Additionally, I require ongoing maintenance and support to ensure that my network runs smoothly and any issues are resolved promptly. The ideal freelancer should have experience in Microtek setup configuration and maintenance for medium-sized networks. Skills and Experience: - Microtek setup configuration - Network maintenance and support - Experience with medium-sized networks - Troubleshooting skills - Strong communication sk...
I have the following problem, I have a VPS Server with 16 gigas of ram/6cpus but unfortunately Ffmepg works too slow , Is there a way to improve that ??
V-P-N backend Expert needed Creating V-P-N deployment script Creating V-P-N servers Management Panel with logs, client, admin, monitoring Buying servers on different locations ( We need your suggestion, we pay, not you ) We work with professional experts ( ONLY )
I need someone to help me recover my Linux server login password as I have lost access to it. Here are the details: Access: I do have physical access to the server. Linux Distribution: Unfortunately, I am not sure what distribution the server is running. Backups: I do not have any backups of the server or its data. Ideal Skills and Experience: - Experience with Linux server recovery - Knowledge of password recovery techniques - Familiarity with various Linux distributions - Ability to work quickly and efficiently to minimize downtime.
Bom dia. Preciso que esse porjeto feito com docker, seja aplicado sem docker, apenas com para centos 7, sem uso de docker. @smlalene/data-warehouse-tech-stack-with-postgresql-dbt-airflow-35dfb7e743f8 Documentar passo a passo das instalacoes
I am looking for someone to help me set up a Docker compose environment for codeigniter4 and mariadb on RHEL9. I have a Dockerfile for both codeigniter4 and mariadb. I would like the latest versions of both codeigniter4 and mariadb to be used in this setup. The purpose of this Docker compose environment is for a staging environment. Ideal skills and experience: - Strong experience with Docker and Docker compose - Experience with codeigniter4 and mariadb - Knowledge of RHEL9 - Experience setting up environments for staging purposes.
The goal of this project is to install the script ,the script must be well installed with cronjob, SSL certificate , email ( I already have an account on name cheap), FFMEPG, After installation I'll do several tests.
I am looking for a Freelancer to transfer my existing Let's Encrypt certificates from Apache on my Typo3 web server to HAProxy running on OPNSense for several domains. I already have the certificates and keys ready, so no generation is required. I am looking for someone with knowledge of both Apache and HAProxy to help me get this completed. Thank you for your interest in this project. Domains: , , , , , , , , , , , ,
The deliverables will be to develop a Casual loop diagram along with a System map. Must be accessible using Microsoft software such as Word or PowerPoint. Must be available for multiple virtual meetings, through these meetings the information will be pulled to develop the system map and casual loop diagram to support in guiding through the transition Must be available from the week of June 19 to the last of September, bi weekly virtual meetings. Good presentation skills and experience and able to provide examples of your work is important
HI, i need help of a freelancer to help me install OS online. the desired candidate must be available online to help me thank you,
Découvrez la certification PMP® – Professionnel en Management de Projet Forte de plus de 1 million de certifiés dans le monde, la certification PMP® est une des certifications les plus reconnues et recherchées par les entreprises. Être certifié(e) PMP® est donc un réel atout pour décrocher un poste à responsabilités dans les secteurs de l’informatique, du BTP, des finances, de la santé et autres. Cette certification indique aux employeurs, à vos pairs et au monde entier que vous possédez un réel savoir-faire en gestion de projet. 100% en ligne Formez-vous à votre rythme Certification obtenue entre 2 et 6 mois
I just installed Vici Dial on a Server, I have also Magnus Billing on an another Server which means I want now to make auto dailer so I fixed Vici Dial but I have never heard about this before so now need someone who can help me just to open users or what ever is needed to configure it.
1. The issue is that when the client sends a post request to the API, it takes up to a few seconds for a response however the function itself executes in less than a second (issue occurs often when API is on idle and hasn't received a signal for a while) 2. Its ubuntu 18.04 running on wsgi as a system service on a lightsail server
Configure secondary DNS from cloud and synchronize with local DNS
I want to create a linux server on google cloud with some security patches. install mysql install elasticsearch install bitcoin core install apache
I am looking for a freelancer who can help me set up a Ubiquiti server in my office with site-to-site VPN. Here's what you need to know: Network Setup: - We currently have 3 different branches in 3 cities. Our accounting software is based locally in City D, and we have satellite offices in City S & City A that need to be connected to City D Ubiquiti Products: - I am considering to purchase the unifi dream machine pro for all 3 locations. But am open to suggestions if you have a better idea. Purpose of Site-to-Site VPN: - The primary purpose of the site-to-site VPN is to connect remote offices. Ideal Skills and Experience: - Experience with Ubiquiti products and setting up site-to-site VPNs. - Knowledge of network configurations. Scope of work - I will set up the hardware at ...
Seeking a skilled developer to configure multiple socks5 connections on an ASUS RT-AC68U router. The goal is to connect socks5 to separate Wi-Fi networks and enable broadcasting. Specific devices include Raspberry 4, ASUS RT-AC68U, ASUS GT-AX11000, GL-AXT1800 (Slate AX), and GL-AX1800 (Flint). Each socks5 should have its DNS set accordingly, and WEBRTC should reflect the IP of the socks5. The project must be completed before 4 june. Please provide a suitable price and address additional queries.
I am currently utilizing two mail servers simultaneously. How can I configure the system to ensure that if the first mail server fails to find a valid mailbox or user associated with the recipient address, the email is automatically redirected to the second mail server? First server: postfix mailserver: Second server: Microsoft Office 365: I get this error when the user is not found in the mail server "Address not found Your message wasn't delivered because the address couldn't be found, or is unable to receive mail." To fix this, I used the transport file but it's not working correctly 1. I created a transport file for the following: [alex@] smtp: smtp: 2. I configured postfix to enable this transport file transport_maps = regexp:/etc/postfix/transport
I'm looking for professionals with experience in nginx and HAProxy both installed on OPNSense. Please bid the project only if you have experience with these technologies installed on OPNSense (not linux) They are both already installed and working perfectly. The task is to establish a secure connection between them.
I need condig IIS in a windows server for WebDav. I need that you do it by TeamViewer or AnyDesk for I see how you do it. thanks you !
Bioinformatics commands in mobaxterm app
I need a freelancer to install software from on my dedicated Ubuntu Linux server. The successful freelancer should have experience in Linux server administration and be able to make the software work as soon as possible.
ISE 3.2 configuration support for some task like policy profile for users, guest portal and BYOD configuration
I am seeking the assistance of an AWS expert who can remotely assist me, preferably through a session using AnyDesk. Specifically, I require guidance in tuning the AWS load balancer to effectively manage load balancing and failover for a .NET Core application. Here are the specific requirements for the session: Receive guidance and documentation on seamlessly taking nodes out of the cluster without any impact or outage for users. Implement a swift failover mechanism in the event of a node outage, ensuring uninterrupted service for users. If you possess expertise in AWS and are experienced in configuring load balancers and managing failover scenarios, I would greatly appreciate your support. Please let me know your availability and preferred mode of communication for the remote session.
I am in need of a Mikrotik router specialist who can assist me in adding a VPN to my WiFi network. I have a router (rb941) . I have already purchased a VPN service and my primary goal is to bypass geo-restrictions. Ideal Skills and Experience: - Experience with Mikrotik router configuration and setup - Knowledge of VPN setup and configuration - Familiarity with bypassing geo-restrictions - Excellent communication skills to explain the setup process in a clear and concise manner.
I am in need of a freelancer to install a DrayTek Vigor 2865AC Firewall for network security. I have no experience setting up firewalls, so I am looking for someone with expertise in this area. The installation will cover less than 10 devices, so it is a relatively small project. Ideal skills and experience for the job include: - Expertise in setting up firewalls - Knowledge of DrayTek Vigor 2865AC Firewall - Familiarity with network security protocols and best practices - Ability to troubleshoot and resolve any issues that may arise during installation
network engineer ，router，switch，firewall，
Create and configure a DNS on Stakpath for a new domain
We are looking for a Perdoo OKR Consultant to help implement and guide our organisation's OKR program. Our current state is that the program is not implemented yet, however we do have specific goals in mind. Our team will need guidance and training from the consultant in order to ensure the successful implementation of our OKR program. As such, we need a consultant with the knowledge, expertise, and experience to work with us to ensure that our program is successful. The consultant would need to provide full consultation on the OKR process and provide guidance in all aspects of managing the program. This would include conducting strategy and goal setting sessions, offering advice and recommendations on best practices, delivering communication and training, tracking progress, coachin...
As our business relies heavily on the JasperReports Server for reporting purposes, we need a freelancer to assist us in scaling the system in order to improve its performance. At the current usage level, medium, we require help specifically with load balancing to make sure that traffic and load times are at their optimal level. The main goal of scaling our JasperReports Server is to improve the performance, such that it is able to handle increased traffic without causing an inconvenience to our customers. We're looking for someone capable of understanding our current setup, working out what needs to be done to reach our goal, and actually implementing these changes to achieving successful scaling.
I am looking for a freelancer who can help me access shared files on a cloud-based storage via VPN from Windows computers. The goal is to update the files live via the internet. I am not sure about the VPN setup required, so I need recommendations. The ideal freelancer should have experience in VPN setup and be able to suggest the best one based on my needs. The following skills are required for this project: - VPN setup - Cloud-based storage - Windows OS If you have experience in this area and can provide quality work, please bid on this project.
I am looking for a freelancer to help me with a simple task i need to redirect visitors to a new VPS without any downtime. can be done using host file or ip tables, i am not sure which one is better if bidder is experienced, we will continue on configuration of server
I am looking for an experienced Splunk expert to help me set up a system for saving and monitoring network logs. The ideal candidate should be familiar with the following: - Splunk Enterprise - Network Security Monitoring - TCP/IP Protocols - Basic System Administration The project involves setting up a system to monitor more than 50 hosts/network devices, with both real-time monitoring and periodic analysis required. The system should be able to gather and analyze log data from various sources, including routers, switches, and servers. The primary tasks of the project include: - Setting up Splunk Enterprise on a server - Configuring data inputs for network logs - Creating dashboards and reports for real-time monitoring and periodic analysis - Setting up alerts and notifications for sp...
VM Started with an error, and reading online I deleted the snapshot files from snapshot manager, but now wm says it dosent find the vmdk file, I see all the vmdk files but as SEPARSE and FLAT extensions. they are all in the same datastore as they were, according to online reading I only need to rename, to have them boot again.
I am looking for an expert to help me set up a Virtual Machine on Azure with Windows operating system and Standard level of performance. The ideal candidate should have experience in Azure server setup and be knowledgeable in Virtual Machines. Specifically, I need someone who is proficient in: - Azure platform - Virtual Machines - Windows operating system The project will involve the following tasks: - Setting up a Virtual Machine on Azure - Configuring the operating system - Optimizing performance - Providing documentation and training if necessary The project deadline is two weeks, and I am willing to offer a competitive rate for the right candidate.