Linux System Administration Jobs

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Fixed-Price - Intermediate ($$) - Est. Budget: $500 - Posted
2 physical servers (Intel® Core™ i7-6700, 64 GB DDR4 RAM, 2 x 500 GB SATA SSD) connected with a second network card need to be setup for a PHP/MySQL Load Balanced Setup using NGinx and Master-Master Replication - also a solution for a shared uploaded user files directory is needed (GridFS? Rsync? Simple Mount?) Everything needs to be optimized for maximum performance / throughput / requests, minimal response time for a PHP/MySQL website. Tasks: - Linux Setup: Firewall, System Level (OpenFile Handlers, sysctl config) - Apache Setup (or alternatives) and optimization - MySQL Master-Master replication - common directory for uploaded files (GridFS, Mount, other solutions) - NGinx as a load balancer - security tools like ssh black, change SSH port etc.. - setup basic monitoring and alerts via email - no email server is required - setup solr cloud (but I could do this also myself) You need to know what you are doing and have experience with high-traffic websites and MySQL Master-Master setups. When you apply for this, please submit your fixed price offer and / our hourly rate for ongoing support in the future now and then. If you are experienced to offer an ancisble playbook for this, also mention it please.
Skills: Linux System Administration Apache administration Apache Solr Cluster Computing
Hourly - Entry Level ($) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
We have our web site on Blueshield LINUX rental share server. I made a PHP program for our customer can imput their timesheet. I also am using mySQL to store these timesheet data Then I have to send these timesheet data as dbf file or csv file or some text file to our intra Windows 2012 server in our office in safe. Because in this server we have a FOX-Pro program to calculate payroll So I want to send timesheet data file from my PHP program on LINUX serve to our intra Windows server automatically in safe when our customer finished to input And when customer finished to input, I want to inform that to our intra Windows server and our staff like by email or text message. I tried this by FTP or Samba or Dropbox but I failed and it seems not safe.So if you have good idea to send file in safe, please let me know. File size is not big.But our intra server has customer's important data. So safety is most important. I am a just programmer. I am not good at network and server. Our CEIO made Fox-pro program to calculate payroll so we still use this to calculate payroll. maybe VPN is one solution but very expensive. I need safe but easy, cheap solution.Do you have any good idea to solve this?
Skills: Linux System Administration Microsoft Server Network Programming PHP
Hourly - Entry Level ($) - Est. Time: 1 to 3 months, 30+ hrs/week - Posted
We are looking for a competent and self motivated system administrator that is available immediately to join our team in a remote capacity. This is a full time position which equals to a standard 40 hour work week. Work hours are 10:00 - 19:00 GMT with 1 hour for lunch. You will be supporting users in both Malta (EU), Curacao (Caribbean) and assisting with administration of our cloud based servers. Initial contract is for 1 month with the possibility of future extensions. Compensation to be negotiated (budget Eur 1000 to 1750+/month) depending on relevant experience and performance of duties. Duties: * End user support (15-20 users). * Domain registrar, DNS & Email troubleshooting/support/management. * IP address allocation & verifying websites are production ready. * Assist in build/deploy/maintain production Linux (CentOS) servers. * Migrate websites to our new development platform. Must have: * Be able to support Windows and Mac users. * Good understanding of DNS, email, and web servers. * Intermediate or better Linux knowledge. * Excellent English verbal and written skills. * Reliable high speed internet access. * Stable and secure desktop/laptop of your own to work from. Experience an asset: * Setup and maintaining cloud based servers (KVM, Xen, OpenVZ, VMWare). * Install/configure/maintain servers/users via hosting control panels (WHM/Cpanel, DirectAdmin, etc). * Scripting system administration tasks. Personality: * Trustworthy * Intelligent & personable * Willingness to learn * Able to follow directions * Self motivated * Open mind * Ability to multi-task
Skills: Linux System Administration CentOS CPanel DNS
Fixed-Price - Intermediate ($$) - Est. Budget: $10 - Posted
It should be a simple line of codes for the Exim MTA Expert. I want to configure Exim at CPanel/WHM so that specified domains to use Sendgrid SMTP. I found an article here http://www.heatware.net/cpanelwhm/whm-configure-domain-use-sendgrid-smtp/. In this article, the 'senders' option is recommended. It is fine for few domains. But, I have more than 25 domains to use Sendgrid SMTP, others to use local smtp. Is there an option to include a file for senders, that will include all the domains, so that email send from those domains will be sent through Sendgrid SMTP?. Appropriate configuration required for 'Section: PREROUTERS'.
Skills: Linux System Administration Exim
Hourly - Entry Level ($) - Est. Time: 1 to 3 months, 30+ hrs/week - Posted
My company, Gluu, provides a free open source OpenID Connect Provider (OP): https://gluu.org/docs/integrate/openid-connect/ Gluu also provides an easy to use OpenID Connect relying party (RP) called oxd: http://oxd.gluu.org/docs As you can see in the docs, we currently have php, java, node, python, ruby and c# libraries for oxd. However, the c# library needs to be updated for the lastest version of oxd. The current project can be found at: https://github.com/GluuFederation/oxd-csharp This project would have two phases: (1) Update C# libraries for oxd with test code! (2) Write a helloworld C# application that uses oxd-csharp for registration, authentication, retrieval of user information, and logout. Nothing fancy... the main point is that this project would provide an example to developers about how to use the library. (3) In the next phase, update oxd to use https (instead of local sockets) and add support for oxd OAuth2 authorization APIs The Gluu team will support your effort to help answer any technical questions about OpenID Connect. Candidate MUST have deep experience with C# and JSON/REST services, be a self-starter, and write clear well-documented, professional code. Should have experience with OAuth2 authentication API's and basic linux system administration. You MUST be available daily during US mornings to discuss your project; use ODesk client software to record all hours; must have a laptop with at least 8GB of RAM. You SHOULD have: good knowledge of linux; familiarity with Github; test driven development habits. NICE to have: knowledge of LDAP, and other federation protocols. This is a great opportunity for an programmer to get specialized knowledge in an extremely fast-growing domain: Internet authentication and authorization.
Skills: Linux System Administration LDAP REST Test Driven Development
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
Would like someone with a solid understanding of Linux to help set-up a master/slave replication of MySQL database and other important folders that are not part of the MySQL database. Current setup is Windows based server 2003 on a domain with workstations and active directory. Moving to Linux servers but workstations will remain windows 10. Linux servers are currently setup and working individually with the test database installed. Now I want the replication setup and tested, as well as the new DNS. Currently the old windows server is handling DNS and active directory.
Skills: Linux System Administration Computer Networking Network Security Samba
Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
Job is in Belgrade, Serbia working as a classroom based Linux instructor. Serbia based IT training center is looking for an experienced Linux administrator with soft skills to match the tech "know-how". The job is: periodical on site (meaning: offline) Linux training, during day or in the afternoon, in an equipped classroom, all necessary teaching material (presentations, scripts and books) available. Our teaching program has various levels and it matches the LPIC certification (1, 2, 3). Candidates may apply for one of the levels of their choosing, example: one can apply to be Linux L1 instructor (essentials and fundamentals of Linux administration) or for all levels. Potential students are Linux enthusiasts with goals for and administrator's career, college students or working administrators of all skill levels. Courses are held in our training center in Belgrade, Serbia.
Skills: Linux System Administration Red Hat Enterprise Linux (RHEL)
Hourly - Intermediate ($$) - Est. Time: More than 6 months, 30+ hrs/week - Posted
Looking to hire an expert for an ongoing project. Must have expertise: - Scraping (Beautiful Soup, XML, Selenium) - Linux (Debian/Ubuntu) - Python - Django - Database (Postgres) - APIs/REST/Requests - Queueing (RabbitMQ/Celery) - Deployment (Ansible) - Fluent English as a first language. - Fast and reliable internet access, webcam and microphone This is a complex project and will need a dedicated and experienced developer. Please apply below! (put the world 'scrape' at the top of your application so I know you've read the requirements) When applying, please let me have the following info (if you don't provide it, I'm sorry but I won't be able to consider your application): - Relevant scraping projects - How you have approached and built previous scrapers and data loggers - Python experience and code samples - A bit about you, your current situation and your future plans. Thank you for applying!
Skills: Linux System Administration Django PostgreSQL Programming Python
Hourly - Intermediate ($$) - Est. Time: Less than 1 month, 10-30 hrs/week - Posted
Hi, We are looking for assistance in creating a Talend job that does the following. 1. Connects to an SFTP server and retrieves GSM or Wav file recordings - filter for files older than today. 2. Read meta data from the file name and also calculate the recording length based on the file size. Insert this data into a MySQL database avoiding duplicates and also handling new file/ones previously being written. 3. Place the file in a local folder depending on the date of the file 4. Delete processed files on the remote server This job would ran once a day over night and is designed to archive and catalogue call recordings from an Asterisk server into a CRM data. Live access to our systems will not be provided but the MySQL data structure, file and folder structure will be shared. In house engineers will test against our servers. We have a few Talend projects coming up so we hope to find someone who can help us with future projects.
Skills: Linux System Administration MySQL Programming Talend Open Studio