Administración de sistemas 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!
De 158,106 opiniones, los clientes califican nuestro System Administrators 4.86 de un total de 5 estrellas.Contratar a System Administrators
Estamos buscando un programador con sólidos conocimientos en servidores AWS EC2 para unirse a nuestro equipo y asumir el control de una API ya programada, con el objetivo de analizar en un primera fase que hay programado y como se ha hecho, ya que tan sólo disponemos de una breve documentación con las querys a las que responde. La persona elegida, será además el responsable de mantener y optimizar la infraestructura de servidores en la nube, garantizando un rendimiento óptimo y una alta disponibilidad para nuestra API. Responsabilidades: - Administrar y configurar servidores AWS EC2 para garantizar el funcionamiento fluido y eficiente de nuestra API. - Supervisar y optimizar el rendimiento de los servidores, asegurando la escalabilidad y la capaci...
Hello, We have our own VPS inside digitalocean with ubuntu 22.04 and plesk for manage our website etc. but plesk take many hard space memory, so we need to add new volume for avoid issue about space enought. We want hire you, for setting new volume on our vps, and all file need to be send to this new volume. I can hire you now for fix this issue. thx you
I am seeking a skilled Cisco technician to help resolve a connection timeout issue on my Cisco 4331 ISR. The issue appears to be affecting our LAN connection, though I am not sure if it is persistent or intermittent. I do know that we have recently made changes to our network configuration, which may be contributing to the problem. Ideal skills and experience: - Experience troubleshooting Cisco 4331 ISR routers - Knowledge of LAN connection issues and how to resolve them - Familiarity with network configuration changes and their potential impact on connectivity - Strong problem-solving skills and attention to detail.
I am looking for a freelancer who can assist me with configuring VPN split tunneling on my Ubuntu 20.04 system. Specifically, I have an existing VPN setup and would like to implement selective application-based split tunneling. Ideal Skills and Experience: - Proficient in Ubuntu 20.04 system administration - Expertise in VPN split tunneling configuration - Familiarity with bash scripting languages - Ability to provide guidance or creating script for automated split tunneling The project will require the following: - Review of existing VPN setup on Ubuntu 20.04 system - Implementation of selective application-based split tunneling - Guidance or creating script for automated split tunneling, if necessary If you have experience with VPN split tunneling and are proficient in Ubuntu 20.04 sy...
I need an HAProxy expert for a personal project, all config is maded i need just small thing, about url rewrite, start your bid with "SMO3LIH" or it will be dropped
Need Help Deleting Some Space on Ubuntu /dev/sda2 drive
I have a AWS Windows instance. We no longer want the SSH security but chose SSM. Can anyone connect and show me to install the SSM ?
This project is to install an exchange application on Ubuntu server and setup SSL for the domain pointing to server. Please read attached Documents for better understanding of the installation process and before bidding. Feel free to contact we me any questions.
Uploading Large Document to Dedicated Server I am looking for a freelancer to help me upload a large document (more than 500MB) to my dedicated server. The ideal candidate should have experience with dedicated servers and be familiar with the following: - File Transfer Protocol (FTP) - Command line interface - Troubleshooting upload issues - Optimizing upload speed Skills and Experience: - Experience with dedicated servers - Proficient in FTP and command line interface - Knowledge of upload troubleshooting and optimization - Strong communication and problem-solving skills
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 )
Linode Server Restrictions for Malicious Activity I need to implement specific restrictions on my Linode server to protect against malicious activity as soon as possible. Restrictions to implement: - Firewall rules to block unauthorized access attempts - Access control policies to limit access to authorized users only - Resource limitations to prevent DDoS attacks and malware infections Malicious activity to protect against: - DDoS attacks that can overload my server and cause downtime - Malware infections that can compromise my data and network - Unauthorized access attempts that can lead to data breaches and security threats Ideal skills and experience for the job: - Strong knowledge of Linode server management and security - Experience in implementing firewall rules, access control...
"Hardware and Software Cluster with VMware Network Support" I am looking for a freelancer who can help me with both hardware and software configuration for my multiple server setup. I need someone who has experience in setting up a hardware and software cluster with VMware network support. Hardware Setup: - Multiple servers Assistance Required: - Both hardware and software configuration VMware Network Support: - Installation and setup Ideal Skills and Experience: - Experience in network setup and configuration - Familiarity with VMware software - Knowledge of hardware installation and configuration - Ability to troubleshoot and maintain network issues - Strong communication skills and ability to work collaboratively with a team.
I need someone to help me fix a small server issue on my VPS hosting at Godaddy. The main issue I am experiencing is Bad Gateway it is showing, even though I renewed the hosting. The ideal candidate should have experience in Windows/Linux server administration and troubleshooting. They should also have experience in VPS hosting and be able to identify and fix server downtime issues quickly and efficiently.
I need someone to maintain and help upgrade our current server. We use it to deploy drivers and install windows to multiple PCs at a time. We need someone to help us with issues it's having. Ideal Skills and Experience: - Experience with Windows Deployment Server Manager - Strong knowledge of Windows Server 2019 - Experience with upgrading deployment systems - Ability to troubleshoot and resolve performance issues - Excellent communication skills for collaborating with our team.
Hello and hope you are well, Would like a container for my existing HTTPS install and to make ONE folder browse-able The folder is /var/www/html/artifacts Would like to keep my existing /etc/ (and will gladly share this) and existing certificates, etc, etc, etc Am using kubectl on top of "kind" Have a way we can screen share ? There is hope you can give your “best” price; unemployed, and have cancer with bills backing up, $10 possible? Please note $10 is the max total that I can handle for this (doing hourly reduces % fee). Will leave a Glowing paragraph of feedback 5 stars : - ) My funds are low but will pay quick and leave 5 stars. Please give your best possible for your bid ? (something reasonable?) Please note there is hope we can mutually complete this...
we have a dedicated server (with plesk) with a prestashop 1.6 site inside with PHP 7.1.33 a cyclical update of the products via webserver (API) is carried out. When this update procedure takes place (about 40-50 products at a time every 10 minutes) the front-end site becomes inaccessible. the CPU reaches very high levels and the site is blocked. we want to solve the accessibility problem, we have another site (same characteristics) on a shared hosting where the same procedure takes place and does not crash
j'ai un disk en rain 0 (composé de 4 disk) sur lequel y avait des VM VMWARE lui meme est installé sur une cle usb donc ce disk raid y avait des vm dedant, que j'ai malheureusement formaté et installer windows sur disk par erreur, je sais qu'on peut le recuperer
First of all my goal to access my vcenter from internet from public without use public I would like to be able to give my users access to the vCenter Server through the Internet ( but security is not the main concern here, at least not now). I read that vCenter needs port 443 to be open in order to accept vSphere Client requests. But I don't know how exactly this should work (important: it's just a test environment; vCenter Server does not have any precious data so at least now I'm not concerned about security; I simply want to learn how to do this). info :- DDNS NO IP hostname ( ) i have home networt ISP ( ) which it praivte network and i want to link my praivte network to public network ( ) by DDNS forward port i get the below anser comment by google but i do not...
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 )
Custom mail server means. Like, Postfix or Exim or Qmail But for your purpose or the like systeme.io. it should be a cluster setup with IP rotation and pooling it will be an architecture setup
1i trieod to put protocols in it 2 i tried to redirect it to wich is my new domain 3 now for some reason its down and the sub domain of and is down also my gmail was connected to the domain at and i tried to redirect it to and its not working now i probebly did sothing wrong
I am looking for a freelancer to troubleshoot an issue with SQLexpress timeout loading service in Windows 2k16. Requirements: - Experience with SQLexpress configuration and Windows 2k16 - Familiarity with troubleshooting timeout loading services - Ability to diagnose and resolve error messages - Availability to address the issue in a timely manner The priority level for this issue is medium, and there have been no recent changes to the SQLexpress configuration or server environment. There are specific error messages appearing that need to be resolved promptly.
I am looking for a freelancer who can help me shift my AWS server to Digital Ocean. The specific AWS service currently being used is EC2 Instances. I require complete setup assistance for the Digital Ocean environment and my preferred timeline for the migration is within 2 hours. The ideal candidate should have experience with server migration and setting up Digital Ocean environment.
Hi, everyone How are you? We are hiring senior full stack developer and our purpose is to build the services like this. Don't bid if you can't accomplish this project. Then, don't waste my time. Only bid as senior. 1. Purpose The purpose is to manage a service provider's customer base and technical infrastructure in a relational database. It should also have API's and use API's to interconnect with other system to automate service creation / service parametrisation etc. The main customer type is a internet user using the infrastructure of a Internet Service Provider but the system should be extendable to many other use cases such as VoiceOverIP, SMS, IP-TV etc. 2. Requirement The system should be running on Linux with MariaDB (MySQL) and PHP7 . On the user s...
Have a Firewalla gold router and firewall. Using Omada EAPs, 1 managed Omada switch, 2 unmanaged netgear switches, and Omada oc200 controller. Looking for 2 deliverables: 1. Create VLAN for IoT devices 2. Setup 1-way communication so devices on main network can access printer/Roku/etc on IoT VLAN
We have a virtual server with Servers Australia and we are Looking for a WHM specialist to provide ongoing support with maintaining, troubleshooting and other smaller tasks like adding SSL Certificates to domains etc. Ideal candidate should have experience in server configuration and website migration to also assist when software upgrades need to be applied annd other issues that may arise and need to bbe addressed.
I am in need of a skilled developer who can assist me in resolving Error 522 on my website. The error is occurring throughout the entire website and I have already tried contacting Cloudflare support, but their response was not satisfactory. There have been no recent changes made to the website or server configuration that may have triggered the error. Ideal skills and experience for this project include: - Experience in webmin and virtualmin panels - Expertise in Cloudflare and website server configuration - Experience troubleshooting and resolving Error 522 - Strong communication skills to effectively communicate progress and updates throughout the project. If you have the necessary skills and experience to successfully resolve this issue, please submit a proposal. Thank you.
I am looking for a professional to set up a secure VPS server to host my video tube website. I prefer Linux as the operating system and have no preference for the control panel, open to suggestions. Ideal skills and experience: - Expertise in VPS server setup and management - Knowledge of Linux operating system - Familiarity with different control panels - Experience in hosting and managing video tube websites - Strong understanding of website security and implementing measures to ensure it. Need someone with webserver knowledge to configure and install necessary plugins to run my website securely. - Includes installing file manager - Configuring firewall or configure network. - Installing apache - Installing php - Installing phpmyadmin and configuring it. - Installing ffmpeg - Inst...
i am looking for a linux admin to transfer the website
I am in need of remote assistance to install the g++ 9 compiler on my existing Debian system. The project is for personal use and I have a high-speed internet connection that I can use for this purpose. I have a Debian system already set up and ready for installation. It needs to be version 9.
whm sql upgrade failed need to update or downgrade to old - only anydesk urgent
I am looking for a freelancer who can connect Node.js to our WHM on a dedicated server. We are not sure if any specific configurations or settings are required, so we need someone who is knowledgeable and can guide us through the process. We are open to installing any version of Node.js, whether it be the latest stable version, long term support version, or a specific version. The ideal candidate should have experience with server configuration and Node.js installation.
Je recherche quelqu'un pour recouvrir une Vm à partir d'un disque dur formaté. Je ne souhaite pas reconfigurer le réseau de quelque façon que ce soit, et le matériel que j'ai mis en place est un disque dur. Je recherche quelqu'un qui peut aider avec la recouvrir d'une Vm à partir d'un disque dur et toutes les étapes impliquées avec ce projet. Vous aurez besoin de connaissances et d'experiences nécessaire pour mener à bien ce projet et produire des résultats satisfaisants.
I get denied my vps is in ubuntu
I am looking for a freelancer who can provide Plesk support for my website. Specifically, I am currently using Plesk Obsidian and require troubleshooting and issue resolution. The main issue I am experiencing is that my Plesk version is not supported and I am unable to connect to Plesk admin. Ideal skills and experience for this job include: - Experience with Plesk Obsidian - Strong troubleshooting and issue resolution skills - Knowledge of server configurations and email configurations - Familiarity with website performance optimization and security concerns.
For my upcoming reception event, I am looking to hire a freelancer for event guest check-in. I am expecting between 50 and 100 guests to attend the event, so it is important that the check-in process is efficient and accurate. Rather than a paper guest list, I would like to use a digital guest list to streamline the process. No additional services are required. I am looking for a reliable freelancer to quickly and accurately process my guests during the event.
My project is centered around the design and setup of a computer network. The purpose of this network is to share files and resources across multiple sites, providing internet connectivity and remote access to different devices. I want to employ a mesh network topology for my network with speeds of 1 Gbps. This will ensure that the speed of the network is high enough to support internet and remote access activities while being reliable and secured. The network will also need to be designed with an expandable infrastructure as our business grows.
I am looking for an AVEVA PI Systems Engineer to help with the support of our customers systems. We need support with various tasks related to the installation, configuration, customization, and maintenance of our PI system. The ideal candidate will have experience in all aspects of PI system work including new installs, upgrades, and ongoing support. We have specific requirements for the installation, and we need someone with experience in development, configuration, and maintenance to ensure the project is completed on-time and to our satisfaction. The timeline for this project is moderate, and we need it completed within one month.
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
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 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...
Digitalocean Cloud Load Balancing and Optimization Handle High Traffic on different integrated web-based systems
I am looking for a freelancer who can help me set up an HMail server in a virtual machine (VM) running on Windows. I do not have a preferred email client to use with the server, but I do require SSL/TLS encryption for security purposes. I have some domaines the work is almost completed but have to do some additional setup (MX, SPF, DKIM...) Ideal Skills and Experience: - Experience setting up HMail servers on Windows VMs - Knowledge of SSL/TLS encryption and how to implement it with HMail server - Familiarity with email clients such as Outlook and Thunderbird - Ability to configure spam filtering if necessary.