Linux System Administration Jobs

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Fixed-Price - Entry Level ($) - Est. Budget: $40 - Posted
I am looking for an expert linux admin who know how to work with CentOS. I will have work on and off. What I currently have is 2 linux machines with CentOS and want to merge the data to one server. Both servers have 1 website each. So basically I want to move both websites to one server. Both applications on this server have a mongodb in the backend. The objective is to move the db as well. One server is running plesk which I intend NOT to use anymore. Obviously we can have multiple db running. Along with this work I need to someone who knows how to secure the server. You will have to make sure all correct version are being installed of apache, php and etc... Additionally, I have a 3rd linux server which is running redmine which my clients currently use to log tickets. This also needs to be moved to the same server. I will have requirements on and off, so this could lead to other projects. I need to know your linux expertise and that you are familiar with command line as both servers are command line.
Skills: Linux System Administration CentOS MongoDB PHP
Hourly - Expert ($$$) - Est. Time: Less than 1 month, 10-30 hrs/week - Posted
We are 3D rendering software company looking to port our existing documentation from simple HTML pages to a Confluence system. We have set up and configured a Confluence server, installed the Refined Wiki theme, and created some test spaces with some of our documentation content. We are looking for a freelancer who is experienced with Confluence (and ideally the Refined theme) to help with the following. 1) Review our confluence setup and fix any problems. 2) Configure and/or customize the Refined theme to remove some unneeded widgets and establish a basic look & feel. Examples that we like: http://support.nextlimit.com/display/mxdocsv3/Displacement+component and https://support.solidangle.com/display/AFMUG/Lights 3) Provide general advice on Confluence usage. For example our software integrates into multiple host applications. The documentation contains a mix of topics that are common to all these integrations and others that are specific to a particular integration. Ideally we would like to have a Space for each integration and a mechanism to avoid having to duplicate content across spaces.
Skills: Linux System Administration Atlassian Confluence
Fixed-Price - Intermediate ($$) - Est. Budget: $75 - Posted
the general idea of what we want to do with pgbench is: 1. run a baseline pgbench test on a VM with BDR turned off 2. run a test on the same VM with BDR turned on to see if there is a performance slowdown 3. run the same test with BDR running and the client connecting over an encrypted connection, to test loss of performance again Please make sure you are familiar with the settings to use an encrypted connection in postgres and confirm that pgbench will test encrypted connections Must understand PGbench https://www.postgresql.org/docs/9.5/static/pgbench.html Along with creating a report after testing has been completed is also need. Must be able to work over teamviewer. No SSH, since information is secure.
Skills: Linux System Administration PostgreSQL Administration Security Engineering
Fixed-Price - Intermediate ($$) - Est. Budget: $250 - Posted
we have a dedicated server, which host 4 different sites, with very low traffic. we have a new site there which has no visitor traffic yet. the new site uses prestashop platform, runs on php, mysql. The server response time and time to first byte for this website is very slow. The other sites on the same server are working very fast. However this new site is working very slow. The website page score on Gtmetrix is 82% but the page load time is very slow between 6 to 9 seconds. The main reason the server response time and time to first byte. So we are looking for someone skilled who can help make our website load faster. We want the entire site to load under 2 seconds.
Skills: Linux System Administration Cache Management MySQL Administration Nginx
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
Looking for someone with good experience in setting up CentOS servers. I will have an unmanaged dedicated server and need someone to set it up correctly for a website (which I will create) and a music streaming application (which I will also create). In this first job I'd just like to have 30-60 minutes of Skype consultation or so with you to get the lay of the land when it comes to server tech and what I should be aiming for. It's not my first server rodeo but I appreciate that you will have more knowledge than me! I will need your advice on certain aspects of setup, running, security and application architecture. Clearly, I need someone who knows what they're doing and any previous experience in the streaming sector is a major help! If happy with the consultation then I am willing to go ahead and use your services in an ongoing manner.
Skills: Linux System Administration ISA Server
Fixed-Price - Entry Level ($) - Est. Budget: $50 - Posted
1. I will need the explanation of the project after the completion, so that I can present it later. 2. First we need to generate x509 Client and Server Certificates (Attribute certificates). 3. After that, we need to use these Certificates in OPC UA Server and client and should establish a secure connection. You can get OPC UA client and server here. https://www.prosysopc.com/products/opc-ua-java-sdk/. 4. After the connection establishment, we need to use Attribute based access control. I need mobile device as client. We do have option in OPC UA clients. I should be able to access the server with my mobile as the client. 5. Attribute based Access control with roles and time as two different attributes
Skills: Linux System Administration Information Security Internet Security Java