System Admin 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!From 159,714 reviews, clients rate our System Administrators 4.88 out of 5 stars.
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I had a 1Gb network which I upgraded recently to 40Gbps. I have DELL servers with ESXi7 installed. My issues. When I run iperf between two virtual machines, I get a bandwitch ranging from 6Gbits/sec to 10Gbits/sec. When I copy files with scp I getting a transfer speed of about 110-120MB/s which is very far from the theorical bandwitch of 1GB/s x 4 ~ 4G/s for a 40G network. Recently I discovered that encryption reduce transfer speed so, I setup FTP server. Transfer speed doubled with FTP. I got a transfer rate about 240-280 MB/s. I also updated MTU to 9000 on both hosts and VMs but transfer rates are still the same. My needs. I am looking for an Cisco/VMWare expert who can identify and solve the issue. I need 40G Network bandwidth as configured in Switch to be reflected in Virtual ma...
I am looking for someone to configure a Proxmox backup server to a TrueNAS connection using NFS. I already have a backup solution in place, but need to set up an NFS connection between the two servers. The person I am looking for must be knowledgeable and experienced in setting up and configuring Proxmox and TrueNAS servers. I need someone who can ensure that all the settings and services are configured correctly and securely, so that my data is backed up safely and reliably. If you have experience in this field, I would love to hear from you!
After installing cpanel and restarting, no connection to the server Cpanel with Almalinux
We have some production server running Apache2 web server with arund 100 virtual host per server. We want to be able to monitor the workload generated by each single virtual host in order to identify it a specific customer it is geneating too much load. We need help in order to properly configure apache and to activate monitoring tools so that we can achieve this goal. Wou'll NOT get access to production server so we need instruction on what to do. Thank you
Just Setup Standard Rules and directories. Setup up Inboud and Oubound Rules. Setup 5 Users. Setup the Printer Server Done
Would require one on one mentoring sessions on the mentioned devops tools on a regular or weekly basis
Hello, I have a Cisco 1815 AP and I need help converting it from CAPWAP to Cisco Mobility Express. Can you help with this? I think a firmware file is needed behind a Cisco Account
Hi there! I am in need of someone who can help me configure new relic on my ec2 servers that are running Linux. I need help specifically with monitoring the transactions that occur on the servers, and the type of data that is important for me to monitor is error log analysis. need to monitor web server and chrons
I am seeking an experienced freelancer to create a secure and reliable mining pool for Kaspa, Dynex, Ergo, Monero, and Litecoin. I have already set up a VPS and domain, and the operating system is Ubuntu 18.04, which can be upgraded to 20.04 if necessary. The mining pool should have a user-friendly interface and a clear system, similar to , , or The mining pool should possess the following features: A user-friendly interface for miners A secure payment system Mining statistics and monitoring DDOS protection An automatic payout system An SSL certificate My budget for this project is $600 USD, but I am willing to negotiate. If you have experience in creating mining pools and can deliver a high-quality product within my budget and timeline, please submit your proposal along with your rele...
Requerimiento Obligatorio : Hablar Español Configurar Mikrotik Conocimientos requeridos Switch Vlan Trunk Vlans Walled Mangle NAT Filter Rules PPTP - L2TP Certificados Radius USERMAN USERMANAGER
looking for someone can recover file deleted from server ASAP
I am looking for a talented Linux professional to build a new product from an existing codebase. The project will involve customizing the existing codebase to include additional functionality. The timeline for the project is estimated to be less than 2 hours. this project is expected to be delivered quickly and cost-effectively, solid communication and high availability are both highly appreciated. If you think this could be the right opportunity for you, please get in touch. I look forward to working together.
Provide guidance on solution requirements, technical design, integration architecture, and solution recommendations. Perform administration of the Coupa instance.
Configure, implement and demonstrate a working simulation of the following practical scenario implemented using all or some of the following tools. Virtual Machines, GNS3, Syslog, Observium & PFSense. devices in the above topology must be able to communicate with each other. Webservers should send their respective syslog traffic to the Kiwi Syslog Server. Company Router and Kiwi Syslog Server should pass their SNMP traffic to the Observium Server PfSense to Block all external traffic and allow Staff PC 1 to communicate with the DMZ Web Server.
I have Kali Linux on Virtual Box and need someone to install Security Onion onto the Virtual Box (File provided) also. Once Security Onion is done I need you to ping the Kali Linux and Security Onion together. Will provide a document with required setting
I need a windows 10/11 with the intel raid drivers so I don’t have to change the storage settings in bios. I would like to keep bios default with “RAID On”. Thanks,
FIVEM GTA5 ESX Script installation
HI, We are hiring a Linux sys admin to help us configure a digital ocean vps. We want our primary domain to be configured and n1 ans ns2 configured to point to our whm/cpanel vps so we can easily add more domains to our vps pointing to our name servers. Fairly basic tasks for an experienced sys admin. We can give you domain access for our primary domain. We want our primary
I am looking for assistance debugging an AWS Serverless app CDK, locally. As I have experience working with serverless architectures, I also need help with the deployment of this application on AWS. The project will require expertise in debugging, as well as familiarity with AWS services.
This is a code I got and the purpose is to sell web hosting and domains and I asked the creators to customize it for me so I could sell VMs (VPS/RDP) I wanted to use the Proxmox virtualizer and I wanted them to connect the Virtualizer APIs in my project for creating VMs and well the price was too expensive so that I could not pay for the service if there is someone who can help me with this the site is in php.
Looking for someone to install the latest curl impersonate on Ubuntu vps
Hello. I need some help with a new mautic instance. I mainly need help setting up chron tasks and making sure everything works properly.
Hello, I am looking for a people who can help me with installing the GUI on the ubuntu VPS and make it enable for me to access it via XDRP. It would be bonus if you have experience with hostwinds hosting service.
I am looking for someone to help set up our project's environment on AWS and GIT, as well as setting up nameserver settings. I already have an existing domain, and I need assistance with the nameserver configuration. The ideal freelancer will have experience working with AWS and GIT, as well as nameserver settings. Please include examples of past projects you have worked on. If your background meets our needs, please apply for this job and we look forward to reviewing your application. Thank you! I am not a developer. We currently have an AWS server and a github project folder. However, any changes I make to the information in AWS or GitHub are not being reflected on the server. I need advice and configuration from a developer who can identify and answer the problem.
Please see attached rejected mail header. For one customer we get "Message delivery to a customer failed an is returned with this a 554 MTA's poor reputation header " I think this relates to the from shows as the localhost IP address from our mail server as this looks wrong (see attached rejected mail header)? Our reputation is neutral and our server name and IP address are not blacklisted.
Hey there, im looking for someone who could help me to make a bugfix on a Side by Side VPN. I have a Server in the Datacenter running opensense and i have a OpenWRT router at home. I would like to create a Side by Side connection between. Everything is setup, but i have somewhere a little config glitch and i can't find whats the problem. Are you able to help?
Hello, I am looking for a reliable and effective system administrator that can work on linux and windows servers. I have four servers (currently) and look for someone long term to help me. Some of the requirements: * set up servers * connect them to the correct domain * update keys * setup frequent backups Looking for an immediate start. MUST be able to demonstrate previous experience.
I am looking for a Freelancer who can help me with an issue that I'm facing with my website. My website links are causing some SEO difficulties and I need help with URL redirection in order to improve the overall performance. Currently, the website's SEO is at an average status so I am interested in finding someone who can get my website links properly redirected in a way that will improve my website's rankings and drive more traffic to the site. We are using Cloudflare, that's means you need to have a good experience with Cloudflare to fix our problems.
I am looking for someone who can help me with fixing the problem with Prestashop - I upgraded prestashop from 188.8.131.52. to 184.108.40.206 version. After upgrade I can't upgrade any module. I am getting error Could not perform action update for module undefined. If I enable debug mode in the administration I am getting HTTP 500 Internal Server Error. Thank you
Seeking solid HP-UX administrator with experience working with HP PA RISK servers as a part of data center migration project. Looking for someone with installing and supporting HP-UX 11.11 and connecting with EMC CX4 SAN.
Configure the default contact Webform Submission View to filter between a date range Requirements: - 1 - Default Drupal latest 9 or 10 version Instance - 2 - Add Date Element to the default Contact Webform - 3 - Configure Views to Filter between dates from the data inputted into the Date Element Successful configuration displays the filter at /admin/structure/webform/manage/contact/results/submissions. Delivery Methods: - 1 - Export and send the relevant config file. - 2 - Configure remotely via AnyDesk access.
need to setup Dell EMC R550 setup with install webserver Cent os and install Whm
Need support for networking and cisco Ftd and fmc and f5 load balancer LTM , APM
Looking for anyone who can help setup Validator Nodes on multiple Blockchain Testnets. Ping me if you know what you are doing. VPS setup preferred.
Need an expert for doing a small project on cache server and proxy server.
i have a spare computer and i need someone to help me setup my home server to host my own website they can use any open source platform they want i prefer portainer docker ubuntu 22:04 nginx and cloudflare tunnel This job will be performed online through anydesk
I am looking for an experienced freelancer to help me install Windows Remote Desktop Protocol on one of my servers which one have 30 gb ram and 200 gb ssd. This requires setting up existing systems and configuring them to be accessed remotely. The installation will involve the use of Windows Remote Desktop and must be completed with efficiency and accuracy. The server should be able to handle multiple simultaneous users and every rdp login it with different rdp
HTTPD fails to start: Starting httpd: [Sun Mar 26 11:43:34 2023] [warn] module ssl_module is already loaded, skipping (99)Cannot assign requested address: make_sock: could not bind to address no listening sockets available, shutting down I need your help to make it run again as it forwards request to 3 apache tomcat webservers running on the same host.
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I recently upgraded my network from 1Gbp to 10Gbps. With the 1Gbp network, I had a transfer speed on LAN of about 100-120MB/s. I still get the same throughput after switching to the 10Gbps network, which was supposed to have ten times more throughput (about 1GB/s). I need a network expert who can help me achieve the throughput speed of a 10Gbps network (~1250 MB/s) Eventually, as my NIC and cables are 40 Gbps compatible, if possible, upgrade the network to 40Gps. Current architecture - 4 Dell PowerEdge R930 Servers (VMware ESXi7 hosts) - 40 Gbps Mellanox NIC on ESXi7 hosts - Cisco Nexus 9396PX Switch - QSFP+ cables to connect servers to switch
Linux Ubuntu PENTEST Expert. Need to have a pentest in our own NW environment.
I am looking for an experienced Freelancer who can help me prepare a VPS using CentOS for my bot. The project requires expertise in configuring CentOS to ensure the bot runs properly. This is a one-time setup job and only requires establishing one VPS. Following are the things that you have to do: 1. Create a virtual env with name python_env. with using virtual environment: 1. Install latest version of Python : python3.10. 2. Install latest version of Python-telegram-bot V20. 3. Install dependencies : pip install python-telegram-bot[all] installs all optional dependencies. pip install python-telegram-bot[ext] installs all optional dependencies you can use the PTB document for reference 4. Run a simple bot I will provide you the telegram token. 5. provide ssl certificate for NPS.
I have a Dell R720XD running Proxmox. We want to farm CHIA with it. Proxmox is on two SSD's, with the CHIA full node & wallet running on Windows 10 in a VM. I will add 3.5" HDD's through TrueNAS after I get this working. I want to passthrough the two GPU's (NVidia p2000's). One will be to create plots, the other I want to decompress the plots. I am looking for someone who knows Proxmox really well & knows how to get this GPU passthrough to work.
I'm looking for a freelancer to help me set up a Flashphoner on my server. Specifically, I need someone to set up the RTMP configuration. I'll be using a server as the device, and the purpose of the setup is to enable live streaming. The successful freelancer should have experience in network performance optimization, as well as in-depth knowledge of all components required for successful Flashphoner setup. Applicants should be prepared to liaise with multiple stakeholders, and follow best practices in their setup and configuration.
The challenge is to make the host machine with the VMM, ping the VM router and vice versa. The only difference to a previously working network build exactly like this, is the hypervisor/VMM was not KVM/Qemu/Virt manager. My network has: 1 pyhsical router bridged. 2 physical wired NICs for WAN and LAN. 1 host machine Debian based OS, running hypervisor/VMM KVM/Qemu/Virt manager. 1 VM router OPNsense (FreeBSD based). Please see the attachment for the network topology (note the VM router's install default IP address is , I will change this to when I have GUI access to the VM router's settings). The VM router is pinging the Internet and LAN devices. Here's 5 different /etc/network/interfaces configurations I've tried on the host machine, in attempt to connect the host&...
I am in need of a freelancer to help me with a project of migrating from my existing OpenProject Bitnami to OpenProject on Ubuntu. I am using Ubuntu 20.04 and will require help in setting up the new OpenProject installation. The successful freelancer will need to be knowledgeable in OpenProject and proficient in database migration for this project. I am looking for an experienced, reliable, and self-motivated individual who is able to provide quality work that meets my expectations. If you think you have the necessary experience to complete this project successfully, then I look forward to hearing from you. Thank you!
Require voip expert for installing fusionpbx and configuring it with our termination provider ip address.
I am looking for an experienced server developer to help me with a specific project. I need a Windows Server environment built, as well as additional software to be installed. However, I'm not sure if I have an existing server to work on, so the developer will need to assess this. The ideal candidate should have extensive knowledge of Windows Server, along with experience using Windows Server management tools. Additionally, the developer should have the experience and the ability to install, troubleshoot, maintain, and/or improve applications and/or services as needed. I'm looking for someone who can deliver an effective and efficient solution quickly, so if you feel that you have the skills and experience needed to handle this project, I look forward to hearing from you.
I am in need of assistance with a DNS configuration issue. The domain name system being used is dns, and the issue is that the MX record configuration is needed. I have gone with a dns system, however I need someone to help configure the MX record settings. Knowledge on this type of setting is key in order to complete this task. If you have the expertise with domain name systems, please help me out! Thanks.
I am going to create EC2 Instance to deploy and host my project on AWS. I need someone to teach me to create ec2 instance. Thanks.