Linux System Administration Jobs

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Hourly - Entry Level ($) - Est. Time: Less than 1 month, 10-30 hrs/week - Posted
Currently I am a hosting reseller of a local provider but now I have made 20 clients I was thinking to move to a VPS. Server management is not my area of expertise so I want someone who could guide me, help me to deploy and to maintain this VPS. I dont have an important budget so price is a factor. My plan is to choose a VPS located in Argentina or close because of performance. So I was thinking in AWS cloud VPS which are located in Brazil(if I am right) It should run CloudLinux + WHM/cPanel and it will be handled with a WHMCS installed somewhere else. Applicants MUST be fluent in at least ONE of these languages: English, Spanish, French Thanks.
Skills: Linux System Administration CPanel Virtual Private Server (VPS) WebHost Manager (WHM)
Hourly - Entry Level ($) - Est. Time: Less than 1 month, 30+ hrs/week - Posted
Job Description We are looking for a PHP Developer responsible for managing back-end services and the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well. Responsibilities • Integration of user-facing elements developed by front-end developers • Build efficient, testable, and reusable PHP modules • Solve complex performance problems and architectural challenges • Integration of data storage solutions • Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality • Skills And Qualifications • Strong knowledge of PHP web frameworks • Working knowledge of CMS framework • Understanding the fully synchronous behavior of PHP • Understanding of design patterns • Understanding of front-end technologies, such as JavaScript, HTML5, and CSS3 • Experience in common third-party APIs (Google, Payment Gateways…etc.) • Knowledge of object oriented PHP programming • Understanding accessibility and security compliance {​{​Depending on the specific project}​}​ • Strong knowledge of the common PHP or web server (Server /Mail Management) exploits and their solutions • Understanding fundamental design principles behind a scalable application • User authentication and authorization between multiple systems, servers, and environments • Integration of multiple data sources and databases into one system • Familiarity with limitations of PHP as a platform and its workarounds • Creating database schemas that represent and support business processes • Familiarity with SQL/NoSQL databases and their declarative query languages • Proficient understanding of code versioning tools
Skills: Linux System Administration CSS HTML HTML5
Hourly - Intermediate ($$) - Est. Time: 3 to 6 months, Less than 10 hrs/week - Posted
Hello, Our Qmail server all of a sudden has stopped receiving emails from outside. To be exact we had a MySQL based crash that caused us to reboot the server this morning. And after that Qmail server has stopped receiving emails from outside. To be more exact: 1- We can send emails to outside World OK via our Web based email 2- We can send emails to outside World OK via Php code 3- We can receive emails from inside emails 4- We can NOT receiving emails from outside emails! And I have narrowed the problem being with Clamd failing to run when it receives a new email from outside to Scan it, with this Error: Sat, 22 Oct 2016 11:48:38 EDT:28055: error_condition: X-Antivirus-MYDOMAIN-1.25-st-qms: clamdscan: corrupt or unknown clamd scanner error or memory/resource/perms problem - exit status 512/2 So I need someone with expertise to Fix this to get online with me to fix it. If you do a good Job on this then you can be our regular Linux Admin Goto guy. Other requirements are: 1- Speak English Ok 2- Have Skype and TeamViewer as we will meet online via this 2 with you having access of our server via Putty 3- Have a good headset so we can speak in Voice via Skype while working on our server Regards, Dean Ansari Director: The Social Networking based Search and Q&A
Skills: Linux System Administration
Fixed-Price - Entry Level ($) - Est. Budget: $7 - Posted
I would like to rewrite the code so that I can do the following : 1. Make a UDP Server/Client. The client send 5 requests one after the other (for example „ tell me the time“), the server receives that and parse it to have the IP and port of the client and make a protocol of it (save it in a file). The server waits for requests on Port 12345. 2. Expend the code so that the client can communicate with TCP. (connect, accept....) write the programm so the client can: a. Sends every request from the 5 seperately. b. Sends all the 5 request with the command send. But the server should be able to reply to every request seperatly. (what should be programmed so that the server can seperate the requests?)
Skills: Linux System Administration C C++
Fixed-Price - Expert ($$$) - Est. Budget: $247 - Posted
Hey Mobile Devs, We have a Goip gateway that we are trying to integrate into our CRM system written in Visual Basic. We just want to send a sms via VB function and check for new messages with another function. We are looking for someone who has experience with the FoxBox device and Visual Basic Programming. See details of the device here. We need someone that's got experience with these devices as its tricky to work with. We need to automate the sending and receiving of sms messaging. We have created an application that can be used to test the interface between the CRM and the SMS Gateway. You can download the source from the link below, The application above shows the functions that we need and the interface that needs be created between the Goip device and our CRM is your task! Please add your skype id in your application. Thank you for taking the time to review our job post. I look forward to working with you. Sincere Regards, John Pititto
Skills: Linux System Administration Embedded Linux GPRS MySQL Administration
Fixed-Price - Intermediate ($$) - Est. Budget: $50 - Posted
1. Advise on linux distribution that mail would sit on. 2. Advise on some kind of control panel so end-user could add mail accounts. (we are using zpanel, if you have better solution we can discuss). 3. Features that mail server must have: - AntiSpam (amavis, policyd, greylist, dnsbl... something better?) - Antivirus (clamav.. other?) - DKIM - Fail2Ban for protection. - Webmail - End-users are able to setup out-of-office reply by themselves in webmail. - POP3 access will be disabled, only IMAP should be used. (All mails are kept on server, and should be visible on all devices user has) - Test mail server will use subdomain (like - You should make sure that outgoing mail has good score in other antispam systems. (google,, others..) - Everything double-checked.
Skills: Linux System Administration Antispam and Antivirus Mail Server Implementation
Fixed-Price - Entry Level ($) - Est. Budget: $15 - Posted
We've just migrated from an Apache to a Nginx webserver environment and are experiencing rewrite issues. We are looking for someone that can convert our .htaccess rewrite rules (about 16) to be working flawless on Nginx. Please do not use automatized tools such as as we've tried that already with no results. Only apply if you are expierenced with Nginx regex and server directives, thank you
Skills: Linux System Administration Nginx Regex
Fixed-Price - Intermediate ($$) - Est. Budget: $150 - Posted
We have an old Debian build as our firewall. It has IPtables managed by Webmin, VPN built into it, Mail relaying (anti-spam, anti-virus) this auto syncs with the Active Directory for Domain names (Websites) and users, Network Monitoring (I would like a gui and something robust like TCP dump or wireshark too). It needs to be upgraded. I can't even install TCP dump on the old thing. I am open to different builds but familiar with Debian and IPTables. We have a new box ready and most of the build done but having trouble with the LDAP connection to Active Directory.
Skills: Linux System Administration Network Security VPN
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
Hi, I have an OVH dedicated server with: CENTOS 6.5 PLESK 11.5 PHP 5.33 MYSQL 5.1 It has been with those versions since March 2014. I haven't updated it for the last 2.5 years. But now I must updated it because I need PHP 5.6, so I would like to upgrade Plesk from 11.5 to 12.5, and I think when I do that upgrade from plesk panel, php and mysql may update automatically as well. But I want a professional to help me do this because my production server is hosting my apps and it is critical that this upgrade goes well. The plesk panel is giving me the option to upgrade from 11.5 o 12.5, when starting the process there are a couple of warnings that I don't understand, so I need the help of a professional. It should all be straight forward and easy but I prefer to do it together with a professional let me know how much you would charge me for helping me to upgrade my dedicated centos 6.5 server from plesk 11.5 to 12.5, which should also hopefully upgrade php from 5.33 to 5.6 and mysql from 5.1 to 5.5 i guess best Jav
Skills: Linux System Administration Plesk System Administration
Fixed-Price - Intermediate ($$) - Est. Budget: $150 - Posted
Need to do the following - on a linux server 1, setup apache, php, readthedocs package, and any security updates - on linux server 2, setup a basic jenkins server, configure it with my bitbucket account - create 2 jobs in jenkins that do the following job 1 - publishes markup docs in my bitbucket repo to linux server 1's readthedoc setup job 2 - publishes website contents in my bitbucket repo linux server 1's apache server requirement - use ssh keys in jenkins setup for bitbucket as well as connecting to other linux server - setup basic user/pass in jenkins - convert current docs into readthedocs' markup and check it into bitbucket
Skills: Linux System Administration Git Jenkins Software Documentation