Linux System Administration Jobs

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Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
Looking for an experience linux system administrator with mailserver experience to help fix an issue with smtp authentication. The server currently runs postfix, courier-imap, amavisd, spamassassin etc. After a recent upgrade to Ubuntu 16.04 authentication with saslauthd broke due to a known bug in libpam-mysql. Most likely the correct solution is to transition from courier-imap and cyrus-sasl to dovecot, however dovecot must support existing user database in mysql (postfixadmin), and support both local and virtual mail users.
Skills: Linux System Administration Dovecot Mail Server Implementation Postfix SMTP Server
Fixed-Price - Expert ($$$) - Est. Budget: $5 - Posted
Empresa de tecnologia, requiere profesional que pertenezca al núcleo básico del conocimiento de Ingeniero de sistemas, telemática y afines y como mínimo título en posgrado en modalidad de especialización en la áreas de sistemas de información, mínimo de Tres (3) años en actividades de administración sistemas Operativos Unix / Linux, Bases de datos PostgreSQL y MySQL, y lenguaje de desarrollo PHP y Un año de Experiencia en actividades sobre el sistema de gestión documental ORFEO en Versiones como mínimo 3.6 , Indispensable que cuenta con certificación en HERRAMIENTAS DE PROGRAMACION EN PHP.
Skills: Linux System Administration MySQL Programming PHP PostgreSQL Programming
Fixed-Price - Entry Level ($) - Est. Budget: $100 - Posted
Hi, I have been using Joomla and Acymailing to run my marketing campaigns online. I am using a shared web hosting with a limitation of 1000 emails per day, at this point after 2 months I have 6k suscribers to my campaigns, I am getting around 100 new suscribers everyday. So, I already have 2k emails in queue everyday, so, if I want to send a new email to those 6 thousand it will take 7-10 days for them to get it. My hosting suggested to buy the vps option: https://www.awardspace.com/vps-hosting/what-is-vps-hosting/ But it seems that I need some technical background in order to manage and setup my current domain in the new server. This is what support told me: "managing and working with a VPS requires at least some technical knowledge in the field of Linux administration and task handling - the VPS instances come unmanaged, which means it is up to the client to configure and setup their environment in a manner they would need. Moving your content from our Shared-Hosting system to your VPS would have to be done manually. This goes for all domains, databases, files and hostnames. You will have access to an in-house developed VPS Control Panel, and a Webmin instance to provide a GUI interface for actual administration tasks". So, I need someone to help to configure and manually move my domains to the new server, and help me to setup acymailing in order to continue sending me email campaign. I prefer if you speak spanish, but is not necessary.
Skills: Linux System Administration CentOS Debian OS Xen Hypervisor
Fixed-Price - Intermediate ($$) - Est. Budget: $200 - Posted
I have two mirrored Linux web servers (main server + live backup failover server). I want to use git for version control of my web application code. I want to use www.beanstalkapp.com to manage the remote repository and deployments. I can successfully commit and deploy to a test location on my main server, but the permissions and ownership of the resulting files aren't correct for Apache to serve them. I'm having trouble figuring out how to use a post-deploy script or other solution to change permissions to the way they need to be. The job here is to help me troubleshoot my deployment via Beanstalk and get the permissions setup correctly. Note: This is NOT AWS Elastic Beanstalk. I'm talking about the git repository system from http://beanstalkapp.com/
Skills: Linux System Administration Git
Fixed-Price - Intermediate ($$) - Est. Budget: $750 - Posted
Job Descriptions of VAS Engineer: We have a content delivery system that integrates our clients in Africa to all Mobile Network Operators (MNO) to send contents via SMS, STK, USSD, IVR/OBD and WAP gateways. The Content delivery platform is highly scalable and extendable for SMS, STK, USSD, IVR/OBD and WAP services delivery. We need a full stack developer with Linux system administration experience in Telecommunication fields. Required skill sets: - Demonstrable experience developing with the LAMP stack (Linux, Apache, MySQL and PHP). Experience with other stacks (e.g. LEMP) a plus. - Linux – must be comfortable with the Linux terminal and be able to perform basic to advanced tasks from the terminal. Access to the VAS server is via the terminal only. - Linux - Networking (IPSec Tunnel, routing & troubleshooting, TCPDUMP , etc) - Linux - SysAdmin (ensure service OAM - support role, can set up cron, logrotate, backups, etc) - Web Server Technology – can set up, configure and troubleshoot an Apache web server. Working knowledge of Beanstalkd, Redis and Nginx is a plus. - SQL - Strong knowledge of SQL. MySQL is currently in use; experience with this or ability to pick up quickly is essential. - PHP Programming – Our Content Delivery platform is built with Yii2 Framework; experience with Yii2 is required. Knowledge of other MVC frameworks is a big plus, for future deployments. - SMPP: Working knowledge of SMPP is a must. Experience with Kannel integration & customization is critical. - Java Programming: can read/write Java code and develop with the Java Spring Framework. Part of our SMPP integrations is implemented in Java. Experience with implementing SMPP in Java is a definite plus. - Source Code Management: Experience with git in a team environment. Our source code repository is managed with git. - Containerization: We use deploy our integrations on Docker servers. Experience with Docker and Docker-compose on Linux is necessary. Knowledge of other container technologies is a plus. - Experience with Web API integration (in PHP and Java), and related technologies (Curl, SOAP, XML, JSON etc) - Experience with configuration and deployment of different VAS solutions - Mobile Applications Development experience is a distinct advantage. - Able to coordinate integration activities between the VAS solutions with the core network, the LAN, the charging systems and the third party content providers. - Strong technical expertise on telecommunications technologies such as SMSC, MMSC, WAP,IVR/OBD and STK - Working experience on VAS Platforms, and service requirement definitions. - Strong knowledge of both Telco Based mobile platforms & services and also IT based VAS services. - Good knowledge of GSM architecture and entities. - Strong working knowledge of SMS, OBD, IVR, USSD and STK mode of subscription and content delivery Job Type: Remote or local support Additional qualities desired: - Ideal candidate must be an independent thinker - Ability and willingness to learn new technologies very quickly when the need arises. - High level of availability
Skills: Linux System Administration Apache CXF Docker Git