Linux System Administration Jobs

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Fixed-Price - Intermediate ($$) - Est. Budget: $50 - Posted
Looking for an experienced linux administrator to setup Ansible files to install servers. I am planing to have a farm of small servers runing a Tomcat application accessing a centrilized MySql DB server and a separate Postfix server. My final objective is to have a set-up ansible files/shell scripts in orther to put a server up and runing in minutes. I am currently using "Ubuntu 14.04 x64 vmlinuz-3.13.0-79-generic" kernel in Digital Ocean, but I expect to get advises if there are better options. Final deliverables of the job will be: 1) any shell-script necessary for tasks not suitable for ansible 2) shell scripts/ansible files to setup the main server (where ansible will be runing) 3) shell scripts/ansible files to setup different profiles of servers: - mysql main server - mysql replicated server - apache + tomcat servers - postfix server * a machine may have more than one profile 4) all machines must have the appropriate security settings to avoid DDOS, invasion, failures, etc; - fail2ban with appropriate settings, send e-mail, etc... - iptables / ufw - working user / sudo-ing - appropriate swap files, etc.. - ssh keys - timezone (in the OS and MySql) - crontab - security updates Mysql: - must have a main server and any number of replication slave servers - must work well with different timezones (mysql_tzinfo_to_sql) - dump routines on the Crontab - undump scripts - working user creation at initial setup - reading user creation - scripts to change the main server to one of the slaves or to a new machine Apache: - any number of virtualservers - reverse proxy enabled pointing to Tomcat applications on the same server - must secure the server against attacks - must serve machine log files (secured) Tomcat: - must correct bugs such as "sudo ln -s /dev/urandom /dev/random" - scripts/routines to update webapps Postfix: - there will be no user e-mails.. those will be used to input data automatically to an application; - must receive any e-mail for a domain and call a script (probably it will be made in Java) - because of disk space, Logging or storing messages must be careful; Logs and files - all logs must be centralized into one single folder at the working user home; - all scripts, configuration files, etc, must be into another folder Monitoring: - must implement/install routines to monitor the servers; - must send e-mail when certain limits occur (ex: X% disk space, X% memory, X% CPU, etc.) Updates: - whenever possible and safe, must set automatic updates on - should suggest the best update strategy
Skills: Linux System Administration Ansible Network Security
Fixed-Price - Intermediate ($$) - Est. Budget: $150 - Posted
We are looking to test drive an open-source transactional email software called Cuttlefish ( We are looking for someone to set up this software on an Ubuntu server for us. This will entail following the directions under "To install on Linode" here We will provide the server and credentials. Just need someone to get the software installed.
Skills: Linux System Administration Ansible Ruby on Rails
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
Looking for an experienced linux pro that can set up an experimental server with Linux and Wine. The goal is to have a Linux server running a Windows app in Wine and being able to have many users connect (similar to running RemoteApp on Windows)
Skills: Linux System Administration
Hourly - Expert ($$$) - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
I am looking for someone experienced to setup the hosting environment on AWS instance with cent os 7.2 AMI installed. our development is in php, joomla, mysql. I would need complete hosting environment build with cpanel, whm, my php admin and support for as scripts etc. Also need help on ssl certificate install, and training on how you do it, so that I can manage in future, I am not developer, but would administer and migrate the developed code from my developers. So I would need training in how to migrate code (manually and from github). For someone who has done it before, would be very easy.
Skills: Linux System Administration Service Cloud Administration
Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, 30+ hrs/week - Posted
We need help adding features to an existing CodeIgniter application as well as editing some front-end javascript and HTML. ​ Please see the attached project scope document for a detailed list of deliverables.​ NEEDED PROFICIENCIES We’re looking for someone who is very comfortable working with a diverse mix of languages and libraries. This site and our needs are not overly complex, but they will require proficient knowledge and experience in each of the following technologies: PHP Javascript, jQuery, other Javascript libraries CodeIgniter HTML/CSS (Bootstrap 3) Social media APIs and other misc. API integrations Apache & NGINX MySQL ABOUT YOU: COMMUNICATION STYLE We need someone who is responsive to requests (we’re not high maintenance, I promise). This means replying within an hour during business hours (7am-5pm PST) and within a day after business hours. We understand that if you are not in the same time zone it may affect your ability to be available/responsive. That is fine, as long as we work out a predictable/consistent communication work flow. We’re also looking for someone who is efficient (fast) and isn’t afraid to offer suggestions for the best ways to accomplish our objectives. We’re looking for the best possible ways forward, and in many ways, we’re relying on you to help us identify what those are!
Skills: Linux System Administration CodeIgniter JavaScript
Fixed-Price - Expert ($$$) - Est. Budget: $250 - Posted
Hi, I'm looking for someone to setup a "Linode 8GB", the stats on it can be seen here: I want it to have cPanel installed (I will supply licence) and to be fully configured for php/mysql speed. We don't host many sites but we want them to be as fast as possible, that is why we want to go for the 8GB Linode. All sites are either Wordpress (most), static HTML or Cakephp (these are going to be updated to the latest php7 compatibility version by our developer). In the past we've had issues on a linode that I don't think was properly setup. This is our current server so you can take a look at it and see if you can diagnose the issues to ensure they don't happen again on the new machine. A list of tasks would be: - setup new Linode - install cPanel - configure mysql & php for optimal speed for end user website visitors (need extremely fast page load) - analyse existing Linode to find issues and ensure they are not replicated on the new Linode - install packages that are required for the websites (git, maybe some php packages, can these be viewed on old Linode?) - secure Linode as best as possible and provide all access details etc - ensure log rotation is setup correctly so file system doesn't get filled (had issues with error_log in home directories before) - transfer all existing sites from the old Linode to the new one and create some blank cPanel accounts for sites we will move in the future: - 5 empty accounts to create - 7 cPanel to cPanel accounts in transfer (should be able to go via cPanel import function) - 1 account requires a manual import as the domain has changed - perform some checks after 2 weeks, 1 month and 2 months to test the Linode and make sure it is all working correctly - ideally we would also like to be able to use you in the future for ad hoc server checks/maintenance/fault finding etc Are there any other things you would recommend that we do as part of this work? Any other ideas you have for making the server and webpage load times fast? Such as optimising http keepalive or other such things? Thanks, Tom.
Skills: Linux System Administration CPanel DevOps LAMP Administration
Fixed-Price - Entry Level ($) - Est. Budget: $1,000 - Posted
We are in need of someone to develop a repricer program for our ecommerce that will allow us to automatically reprice our products based on Max price, min price, and also with the ability to track competitors. This needs to be completed in a timely fashion as we need this instrument as soon as possible. We will provide more details when we receive applicants. Thank you!
Skills: Linux System Administration .NET Framework C# C++
Hourly - Expert ($$$) - Est. Time: More than 6 months, 30+ hrs/week - Posted
The whole information you need is dense because is about to help to dev a linux bridge firewall for privacy (like TAILS or Whonix) If you really what the project please setup your lab as explained here:
Skills: Linux System Administration Embedded Linux Kernel
Fixed-Price - Expert ($$$) - Est. Budget: $60 - Posted
Looking for an expert Linux server administrator who can create an environment at our server where our PHP based application will run, it will be completely LAMP configuration. There will be “Test and Production” environment along with SVN configuration, for MySql it is supposed to be two instance running separately. People with matching skill please apply for this job.
Skills: Linux System Administration CodeIgniter LAMP Administration