You've landed at the right place. oDesk is now Upwork. Learn about the new platform.

Linux System Administration Jobs

279 were found based on your criteria

show all
show all
only
only
only
show all
only
only
only
only
only
show all
only
only
only

Hourly - Est. Time: More than 6 months, 30+ hrs/week - Posted
The Senior Systems Engineer requires a deep understanding of system architecture and design, complete fluency in Unix environments, an ability and interest in understanding how and why things work, and a deep commitment to the availability of the platforms you maintain. Candidates should have: Experience managing the full hardware stack (above a hypervisor) Expertise in Chef, Puppet, Ansible or other configuration mgmt software is great In-depth exposure to best practices in monitoring, logging, operations, etc. Understanding of security infrastructure, firewall management, and secure networking protocols, router configuration Experience or interest in complex, critical infrastructure problems (load balancing, high availability, etc.) Support installation and management of third-party applications (such as Pentaho or Tableau) Support the Director of Information Security in implementing security best practices

Hourly - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
Hello, I need a pro active monitoring. can be zabbix or any other opensource tool for monitoring. Have a set of multiple servers and VPS, must learn to monitor the following items: 1. network usage 2. Complete monitoring cpu usage and memory 3. use of IO on all discs (master and slave) 4. Full monitoring of OS Windows and Linux (Centos) 5. Full monitoring of various services Centos with the possibility of restart if it fails: (Apache, Tomcat, SSH, MySQL, Postgree, Exim (email), cpanel, DNS) 6. complete monitoring of various Windows services with the possibility of restart if it fails: (IIS, Tomcat, SQL Server, MySQL, MailEnable (email), Plesk, DNS) 7. raid monitoring software and hardware 8. hardware monitoring (disk error, error memory, CPU error and other dispoíveis hardware for monitoring, such as network card, etc ..) If possible such monitoring should be pro active. Attention, only make your offer if you are an expert in monitoring.

Fixed-Price - Est. Budget: $ 100 Posted
We need Java programm which will check availability of sites by URL from the list This is a small part of big project. So if you have junior skill - this project will be great to your portfolio If you skilled Java developer it will be fast money for you. We have detailed specification and prefer to Russian speakers from xUSSR and EasternEurope. Thank you for your time.

Hourly - Est. Time: Less than 1 month, 30+ hrs/week - Posted
A small team of skilled software integrators is required to prepare the next updated release of TurnKey GNU/Linux. This particular project will involve use of our custom open source tools to update our library of virtual machines (AKA software appliances) ready for release. The code that the successful applicants contribute to TurnKey GNU/Linux will be free open source (licenced under GPL) and publicly available. Initially we seek the services of one or more software integrators familiar with installation of PHP web apps on a LAMP base. We will be recruiting for other specialist team members soon so if you have additional strengths in other areas; please apply and mention them in your application. If PHP apps aren't your thing but you have strengths in web app integration that uses other code base/platforms (e.g. Rails, Node.js, etc) then please watch out for our upcoming vacancies. Your turn will come! Prerequisites: -------------- Must have: -experience with Linux...

Hourly - Est. Time: More than 6 months, 30+ hrs/week - Posted
Description Systems Administrator for an eCommerce platform running Linux and Apache in high volume/critical production environments. This position will work under the IT Manager maintaining the eCommerce farm as well as maintaining Asterisks phone system, infrastructure and Windows environments for a call center in Las Vegas. Individual will work out of the Las Vegas office. Requirements Overall duties and responsibilities include: Manage and maintain Asterisks phone system using external SIP provider Work with development, QA and IT teams to maintain all operational systems. Knowledge in a number of scripting languages such as Bash and PHP, knowledge in Ruby and Perl is a plus. Respond to trouble tickets in a timely manner. On-call support. Create and maintain IT documentation. Use IT ticketing system System Administrator duties and responsibilities include: Maintain and ensure availability of a Linux based e-Commerce server...

Hourly - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
8+ years experience supporting AIX POWER (6.x, 7.x) and RedHat Enterprise Linux servers (5.x, 6.x) in a large enterprise environment. Experience in automation and scripting. Excellent knowledge fo VCS, Linux and Solaris. AIX knowledge wih HACMP and GPFS is an added advantage. Proficiency in Python, PERL, Shell Scripting and macro's Strong Experience in Deploying and Operating Linux, UNIX and/or Windows at the SA level with a strong bias towards automated deployment and operations experiences. System partitioning and virtualization utilizing IBM AIX POWER LPAR/DLPAR technology and Virtual IO Server/Micropartioning (pSeries), as well as Redhat Linux VM (HP servers). Storage work in Oracle Rac environments in both Linux and AIX environments. 5+ years experience supporting highly reliable/recoverable UNIX-based solutions that address specific business needs and requirements. Thorough understanding of storage related technologies from a server perspective; working with provisioned SAN,...

Hourly - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
We are looking for a professional linux administrator to help manage a network of servers. Job requires: -Manage Nagios monitoring -OpenVPN manage and configure -Squid manage and configure -Bash scripts -Perl experience -Must be available about 1 hour per day This is a long term position. Please contact us for more information and to tell us more about yourself.

Hourly - Est. Time: More than 6 months, 10-30 hrs/week - Posted
We are looking for expert level C/C++ developer, strong ability to multithreading program, cross platform development ability and proficiency in large scale algorithm computing. Good communication and organization skills and the ability to effectively learn complex software are also required.

Fixed-Price - Est. Budget: $ 40 Posted
ENGLISH: You want to develop an application to manage the stock of a certain library using lists. Of each of the books have the following information: -Title - Author - Editorial - Publication - Price - Number Each of the titles in the library will be stored in a sorted list alphabetically by title so that when a book is joined to the catalog, this will be introduced in the corresponding position.   The operations to be able to perform on the catalog are as follows. 1. Buy a book specifying the number of copies to buy. the book You may already exist in the catalog. 2. Sell a book specifying the number of copies to sell. If the number copies available is less than the number of copies requested not you can make the sale. 3. Uncatalog a book. To these should verify that your stock is zero. 4. Display the information of all the books without stock alphabetical 5. Show the information of a particular book searching by title 6. Show the information of all books by the same...