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Linux System Administration Jobs

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Fixed-Price - Est. Budget: $ 150 Posted
Overview: I’m moving from an old server to a new server. I need assistance setting up my new server. This new server will be used for hosting several web sites. I will personally upload my web sites. The requirements section lists everything that I know needs to be done. Server: • Centos 64-bit • Control Panel: DirectAdmin Requirements: Implement the following on my new server. 1) CSF and fail2ban with login detection: - I would like to have both CSF and fail2ban. 2) SSL Certificate - Setup at server level so all sites can share it. 3) Webalizer http://www.webalizer.org/ - Webalizer needs access to: access.log and error.log. 4) Cron jobs - Please setup Cron for control from DA control panel. 5) Setup other security software: - SPAMASSIN, spamcop.net and Spamhaus ClamAV. 6) I will have some name based web sites. - Need to have these website names in DNS, resolving to a shared IP. 7) Setup email and any other services that are needed for my for...
Hourly - Est. Time: More than 6 months, 10-30 hrs/week - Posted
We are a growing company that started on one server with LAMP stack, and have grown where we need to do things like: 1) optimize DB schema design 2) optimize DB config and system design 3) optimize queries For example, the immediate need is to to go from one DB instance on one server, out to a master/slave on two servers. We had Rackspace attempt to do this for us by their first line support techs and the replication would die on a daily basis after several attempts to correct. Finally we just took the slave offline. Rather than pay RS for random DBA consulting we'd like to establish a relationship with someone who can help with this kind of thing and #1, 2, 3 above as needed over the long term. Potential for hours to increase over time as our business grows, if desired. Maybe obvious, but we expect some amount of proficiency in Linux to be able to work with ease on the server itself as well as with whatever remote tools. While not the primary expertise desired for...
Hourly - Est. Time: More than 6 months, 10-30 hrs/week - Posted
We require a system administrator with network administration skills for our Amazon Web Services (AWS) account(s). Responsible for ongoing administration, maintenance, monitoring and troubleshooting of our AWS EC2, S3, RDS, VPC, VPN, and Route53 DNS resources. Should be experienced with setup of load-balanced EC2 instances.
Hourly - Est. Time: 1 to 3 months, 30+ hrs/week - Posted
Must be located in North America, Atlanta Georgia. KEY RESPONSIBILITIES: · Perform vulnerability assessments and attack and penetration tests assessments in internet, intranet, and wireless environments · Perform scanning and discovery for open ports and services · Exploit identified vulnerabilities to gain access and expand access as appropriate. · Participate in activities involving application penetration testing and application source code review. · Interact with the client as required throughout the engagement. · Produce reports documenting discoveries during the engagement. · Debrief the client at the conclusion of each engagement. · Participate in research and provide recommendations for continuous improvement. Excellent presentation, oral and written with analytical skills.
Fixed-Price - Est. Budget: $ 450 Posted
Looking for C# expert with in-depth knowledge of PDF technologies. (Alternately, If this could be developed using C++ or Java, feel free to share) Knowledge about: ---------------------- - PostScript page description programming language, for generating the layout and graphics. - Font-embedding/replacement system to allow fonts to travel with the documents. - Structured storage system to bundle these elements and any associated content into a single file, with data compression where appropriate. Adhering to PDF 1.7/PDF 2 specification (ISO 32000-1) Checklist: ------------ 1. Code to be original - avoid google copy paste 2. No traces of code in parts of full related to open source code/libraries 3. No third party code integration 4. Code to be free from any open source/third party licensing obligation NOTE: Code will be scanned to validate if it violates the other open source libraries/source code that are under GPL, LGPL, MIT, etc. *This will be fixed budget project....