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Linux System Administration Jobs

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Fixed-Price - Est. Budget: $ 100 Posted
The job is to install Softether vpn server on a DigitalOcean Droplet configure 3 users for all supported vpn protocols and make sure the traffic is working from the end user to the internet via the vpn server. One vpn protocol (to be specified) will need to run on port 80 , another on port 443 and the others ports will use standard ports. Certificate authentication needs to be setup and procedure to issue certificate to users must be provider (short text). For the moment authentication will be done using username and password. A separate page to operate the server firewall is needed. We need to be able to set from a simple webpage the ip-s and the ports allowed. Ex only a few ip;s will be allowed to manage the vpn, and vpn will be completelly opaque from the internet exempt the vpn listening ports. We will install this in one region but we will make snapshots to be installed in other regions if needed. Instructions need to be provided on how to change the current ip to the new ip...
Fixed-Price - Est. Budget: $ 250 Posted
I need python (3.4) code developed to read a barcode scanner on a Linux device. The code must do the following 1) Read barcode 2) Write to database (sqlite3). Not block step(1) while doing this. Part(1) works well with this code:- http://stackoverflow.com/questions/21648595/python-evdev-and-bar-code-scanner Main issue is to ensure the code reading the scanned data is not blocked when writing to the database. My thoughts on a solution: - Use python asyncio library Main thread listens for scanned data. When data is read it gets places on a Queue. Another asyncio Task takes data from Queue and writes to database, without holding up the main thread.
Fixed-Price - Est. Budget: $ 150 Posted
We are looking for a mysql configuration expert. Our webserver and the db are on the came machine and was working fine earlier. However, when we migrated to a xeon server and the load increased it became slow. We have ample of processor and RAM available but still the number of threads goes up and the server then becomes slow. The issue does not always come and comes only sometimes when suddenly the load increases. We even tried running the mysqltuner. It helped a little but not significantly. So we are looking for someone who can look into the configuration settings and optimize it for us.
Hourly - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
We are looking for an engineer with experience in Linux and Open Source, experience in Python and/or Ruby and some experience in configuration management tools (SaltStack, Chef, Puppet). We are a startup focused on DevOps Culture, Automation, Orchestration, OpenStack and Cloud engineering. Requirements: - Good communication in English. - Willingness to learn. At first we'll give on demand tasks, then will be a part-time position and finally will evolve in a full time position based on performance.
Hourly - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
** this is an admin position, please don't apply as a developer ** Looking for someone to maintain ongoing long term partnership helping us with system and database administration as required Looking for someone with experience and skills as listed - MongoDB (and MMS) - MySQL - both Linux (Ubuntu) and Windows Server - Amazon Web Services