System Admin Jobs

System admin is the process or person employed to maintain and operate a computer system or network. System admins install, support, configure and maintain servers and other computer systems. They also periodically do scripting tasks and respond to service outages or other problems involving servers or desktops. If your business needs help with system admin tasks, then you can hire freelancers who can work with your computer systems. Talented and experienced system admin freelancers can be found here. Simply post your system admin task or job today.

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    116 jobs found, pricing in USD

    I am using WHM Exim for email server. When I send email from PHP script, it goes to spam simply because of a few things: 1. sending domain instead of the actual domain, it uses the server name or domain 2. envelope-from: instead of the actual from address it shows server domain 3. Signing domain is the server domain and not the from address domain name This is the results / source for message sent from webmail: This message was sent from PHP Script https://www.mail-tester.com/test-d17kzwcc5&reloaded=1 I believe if PHP/Exim uses actual from address and not cpanel account name as sender, then the issue would be resolved.

    $43 (Avg Bid)
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    6 bids

    I have installed Virtualmin ( LAMP ) in DO server and created a virtual server. The website is working fine(PHP, Mysql, Apache) . But the email is not working

    $19 (Avg Bid)
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    5 bids

    Hello Freelancer, need to resolve issues AWS with CWP panel site showing 503 / 403

    $10 / hr (Avg Bid)
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    9 bids

    I need you to 1. Recommend an open cpanel based email server for UNIX 2. Give full written installation instructions to install an open email server (with cpanel) on AWS UNIX 3. Give full written installation instructions to transfer 10x existing email accounts from a shared server to the new AWS UNIX email server 4. Monitor the installation (which I will run) via teamviewer - so that you can fix any errors. Note that you will not have access to the existing shared server, or the new stand alone AWS UNIX server. You can only monitor the installation via Teamviwer - and I will simply follow the instructions you have provided.

    $435 (Avg Bid)
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    17 bids
    Unix Email Server 6 days left
    VERIFIED

    I need you to 1. Recommend an open cpanel based email server for UNIX 2. Give full written installation instructions to install an open email server (with cpanel) on AWS UNIX 3. Give full written installation instructions to transfer 10x existing email accounts from a shared server to the new AWS UNIX email server 4. Monitor the installation (which I will run) via teamviewer - so that you can fix any errors. Note that you will not have access to the existing shared server, or the new stand alone AWS UNIX server. You can only monitor the installation via Teamviwer - and I will simply follow the instructions you have provided.

    $135 (Avg Bid)
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    9 bids
    Kumarappan 6 days left

    we are having around 10 users. as per our requirements we have to configure active directory configuration in our windows server 2019

    $44 (Avg Bid)
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    12 bids
    Docker & Shell Script Expert 6 days left
    VERIFIED

    Need assistance to run two processes from docker container when it is getting started

    $16 (Avg Bid)
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    5 bids

    Need help to install a project on vps

    $90 (Avg Bid)
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    12 bids

    I need help tonput online and use a free social network i find on github

    $6 / hr (Avg Bid)
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    4 bids
    vmware macos 6 days left
    VERIFIED

    i need someone that has experience with virtualizing mac os on vmware or virtualbox. need to be able to use apple pay and imessage. Only people that have done it before . Thanks

    $112 (Avg Bid)
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    4 bids

    Install and customize Envoy Proxy on our physical server. This server will run LXC containers that will have 2 ports (per container) that require an active proxied ssl secured location. One of the two ports will require an authentication layer, JWT, to connect to it (Push Websocket). The other websocket (Main Websocket) has its own authentication and should have its route without authentication from envoy. An ideal setup is where there are no outside ports used by the proxy: i.e., and, local ports used in the container become irrelevant. Since if the proxy goes directly to the lxc containers' bridge NAT location, unique port labeling would not be required to avoid 2 websockets broadcasting on the same port. Containers will be actively created/destroyed on the EWS (Enterprise We...

    $206 (Avg Bid)
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    5 bids
    Need voip expert 6 days left
    VERIFIED

    Need voip expert Need to link 3cx with account Thank you!

    $21 / hr (Avg Bid)
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    8 bids

    Hello Freelancer, need to resolve issues AWS with CWP panel site showing 503 / 403

    $7 / hr (Avg Bid)
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    8 bids

    Hi, the goal is to create ready2run/fully installed cloud-init templates for different applications ( like Nextcloud, Owncloud, Seafile, Mattermost, BBB, gitlab and others ). So you will deliver a working cloud-init config, that will install those applications on blank cloud-images from debian or ubuntu. As cloud-init might be limited to build up complex setups, you can support the setup with puppet. In such cases aside of the cloud-init config you will also have to supply the puppet config. Every different Application-Template will have its static price, based on the complexity of the task. We will give you the requirement and we will talk about a pricing for the different Application-Templates. Payment will be immediately after successful testing of your code in our environment. T...

    $158 (Avg Bid)
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    1 bids

    Fortinet 30E firmware upgrade support , & issues with Access points .

    $15 / hr (Avg Bid)
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    8 bids

    Looking for AWS Specialist to handle Devops, Migration, DNS and provide other cloud related services. Hands on experience with AWS (required) Install, configure, automate, and monitor various Cloud Services Experience with IP networking, VPNs, DNS, load balancing and firewalling concepts

    $22 / hr (Avg Bid)
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    24 bids

    Need Expertise on AWS Devops to help on deployment of the sample application. Already most of the cases are covered only deployment fails without any reason, need to help on that.

    $13 (Avg Bid)
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    7 bids

    i am looking for someone to assist me in opening my exchange calendar for anonymous access with write permissions on certain calendars. You must have good knowledge of exchange 2013/2016 and speak proper english. Most of the settings are in place already so just want to discuss and get this task sorted with an alike thinking person.

    $50 / hr (Avg Bid)
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    3 bids
    Install Win Server on AWS 5 days left
    VERIFIED

    Install APPstream and Windows server on AWS

    $35 (Avg Bid)
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    12 bids

    I have created a virtual enviroment with 4 virtual machines that send their logs to SPLUNK. I will simulate attacks from Kali linux to another virtual machine and try to detect the attacks with Splunk.

    $200 (Avg Bid)
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    12 bids

    Hello We have our email server on local premises with windows server. Now want to setup it on digital ocean / aws cloud. Its approx 1-3 hours work for an expert. We will provide Cloud server access using putty. We have some more work related to server setup and will discuss during this setup. Thanks

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    24 bids

    configure postfix + postfixadmin with docker in ubuntu

    $27 (Avg Bid)
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    we have installed vpn server on microsoft windows server. connection to vpn works fine. internet with vpn works fine. only the internal network is not reachable, which should be possible

    $42 (Avg Bid)
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    9 bids
    Fix digitalocean Vps SMTP 5 days left
    VERIFIED

    i'm using digitalocean vps, but smtp not workking . i want to fix it

    $66 (Avg Bid)
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    11 bids

    Sophos Xgs 107 Firewall configuration with single public ip with port forwarding. all setting via anydesk .

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    We are planning to change infrastructure of our applications with new pattern and architecture. Need a senior DevOps developer to lead our development team. Thanks. AWS Lambda, Azure, DevOps, Linux, System Admin 25USD/Hr - 50USD/Hr

    $580 (Avg Bid)
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    13 bids

    We are planning to change infrastructure of our applications with new pattern and architecture. Need a senior DevOps developer to lead our development team. Thanks.

    $34 / hr (Avg Bid)
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    19 bids
    Fix server issue 5 days left
    VERIFIED

    nydus port blocking error popped up.

    $38 (Avg Bid)
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    13 bids

    We have a small Data Center network with about 15 servers as well as 2-3 remote offices connected 24/7 via VPN. We Require Experience and Expertise in the Following Systems: - PFSense Firewall Expert to configure and manage multiple locations via Open VPN - Network & Server Admin for Linux and Windows Servers - VMware ESXi VCenter Virtual Server Installs and Management - Website Server setup and management for various website platforms We can pay negotiable Flat Rate Per System Install and configuration tasks as well as Hourly for Systems Maintenance. A Monthly Standby Tech Support for Network and Server Admin is also an option.

    $24 / hr (Avg Bid)
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    14 bids

    I need a proxy to sit on my local network which would capture traffic between host and client, and then pass that traffic on to the destination. It needs to be able to work with encrypted traffic as well. Using a self signed certificate on the client would be ok. Ideally the proxy server will capture web socket traffic, and then forward to another server or application for use in other applications. I'm open to any technology such as nginx, apache, squid, etc.

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    5 bids

    I want a seller who can get me WL on the server I follow

    $250 (Avg Bid)
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    1 bids

    Several operational problems have emerged over the last four to six months, or since I began with Siteground. Before Siteground I was with WP Engine (based in Austin). 500 Sever errors have popped up repeatedly. Links aren't working. I've been told by tech guys at WP tech Support that I'm experiencing server shortage issues, but the Siteground says are saying I'm not experiencing that. Now there's a new issue with Disqus. Disqus routinely shows the number of a comments about a particular post. On my iPhone as well as on my Macbook Pro. If a post has been put behind my Patreon paywall, it still shows the number of comments. But two days ago the number of comments disappeared on the iPhone. NOT on my laptop but just on my iPhone. Infuriating. There are...

    $33 / hr (Avg Bid)
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    27 bids
    SOLUS VM INSTALL 5 days left
    VERIFIED

    I need someone to install this on my server. Need done in the next 2 hours. My budget is $15

    $20 (Avg Bid)
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    6 bids

    configure loadbalancer for the site using the same database so it doesn't overload and with automatic sync of database and site files on the main server. use for AAPANEL panel also known as BTPANEL

    $20 (Avg Bid)
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    1 bids

    Install, configure new Cisco Firepower 100 series firewall. There are NO special configurations required ( i.e. NAT, port forwarding NOT required ) just configure it and show I can see that it is actually scanning data that is passing through it.

    $114 (Avg Bid)
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    14 bids
    Amazon AWS Expert Needed 5 days left
    VERIFIED

    hey i am looking for AWS Expert . i just want to create sub domain on AWS and upload files there

    $29 (Avg Bid)
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    16 bids

    serup a win 10 pc as a vpn server

    $26 (Avg Bid)
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    11 bids

    Systems Server Engineer - Cent OS / Cpanel / Linux / Operating Systems

    $21 / hr (Avg Bid)
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    27 bids

    I am trying to send emails on my script via sendgrid but I am getting errors. Let me know if you can fix this issue. Thanks

    $22 / hr (Avg Bid)
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    59 bids
    nginx not working 5 days left
    VERIFIED

    i added around 10 domains to a new digital ocean droplet after moving from old server but its showing eeror, i did everythign correct than i think to start nginx there i also get issues, i want u to check why my domains not working

    $34 / hr (Avg Bid)
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    19 bids

    In order to create a sub-domain login link for clients to log in, we would like to configure the Wildcard sub-domain. In an effort to let the HelpDesk software work effectively, we would like to move the software files from a subdirectory to a sub-domain or any respective folder. We couldn't move the software files to the main/root folder as the WordPress files are residing... You can check these links to learn how does the wildcard can be configured without impacting the software performance Looking for an expert to handle this issue...

    $217 (Avg Bid)
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    i have put in place DLM on linux for a shared SAS setup need quick help on commands and fencing issue i have anybody who handle dlm-controld will be able to help me fast

    $24 - $40
    Sealed
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    0 bids

    Build Splunk Forwarder on Amazon Linux 2, I already have forwarder deployed on amazon v1 and it's working as expected. Need help in deploying on amazon v2

    $26 (Avg Bid)
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    4 bids
    Server rebuild 5 days left
    VERIFIED

    Rebuilding my website & email server using existing equipment via remote connection

    $20 / hr (Avg Bid)
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    45 bids

    Hello I have Dedicated Server and need setup for KVM and VPS after that I need transferred for VPS thank you

    $11 / hr (Avg Bid)
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    14 bids

    Hello. I'm facing an issue on my website. I have some pages with a lot of small images (more than 500), and sometimes the browser don't load all requests, causing the load bar on the browser to not finish. This happens only on mobile browsers. When its happens, i can't access any of page on my website, only if i restart my mobile connection wifi/4g. I already added lazy loads on my page/images, but the problem still happening. When my connection is fast, this problem doesn't happens. I saw there some options on that can solve this issue but i did not know how to manage it, so i ask your service.

    $72 (Avg Bid)
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    Online assessment for cloud support engineer on network side of aws

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    AWS Cloud Engineer 4 days left
    VERIFIED

    Looking to hire an AWS Cloud Engineer to execute on a contract as part of a team. This is an on call position and will work with certain time frames from 9-5pm EST. Should have at least 5 years of experience working AWS based tools like EC2, CI/CD, Terraform, Kubernetes etc

    $4336 (Avg Bid)
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    Build a server 4 days left
    VERIFIED

    Use Alibaba Cloud server to set up a Windows or Linux system, install common software on the system, I buy a VIP member account, I share this account at a lower price, and the purchaser can achieve multi-user access to my account Server, to use my VIP account.

    $44 (Avg Bid)
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    We have a small Data Center network with about 15 servers as well as 2-3 remote offices connected 24/7 via VPN. We Require Experience and Expertise in the Following Systems: - PFSense Firewall Expert to configure and manage multiple locations via VPN - Network & Server Admin for Linux and Windows Servers - VMware ESXi VCenter Virtual Server Installs and Management - Website Server setup and management for various website platforms We also run and maintain the following Systems: - Zimbra Email System - FreePBX system - VEEAM Backup System - RocketChat System - Element System - NextCloud System - Filemaker Database Server Experience in these system is a Big Plus! We can pay negotiable Flat Rate Per Server/System Install and configuration tasks as well as Hourly for Systems Mainte...

    $186 (Avg Bid)
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    16 bids

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