Linux Freelancers

More options
Clear all filters
  1. Umar Draz

    Umar Draz

    Sr. Unix/Linux System/Network Architect

    Pakistan - Last active: 1 day ago - Tests: 2 - Portfolio: 5

    Senior systems architect, UNIX/Linux/Solaris, VMware, OpenStack and data-center administrator, software programmer, project leader with a proven track record of applying years of experience and good practices to the specification, architecture, design, implementation and maintenance of communications information technology systems. Well-versed in the latest computer languages, operating systems, network and system administration techniques, seeking a position where my hands-on self-motivating passion with the technology provides me with a unique understanding of how to balance conflicting requirements and bring complex enterprise level IT projects to a successful completion. Ability to work both independently and as part of a team, with demonstrated results in leading and contributing to projects, interfacing with stakeholders, while training and mentoring junior staff. Also great at troubleshooting complex problems. LANGUAGES: HTML, JavaScript, Perl, PHP, LAMP, Regular Expressions, Bourne/Korn/Bash/Csh/Tcsh Shells, Structured Query Language (SQL), Python. TOOLS: Application Servers (Apache, JBoss, Tomcat, Nginx,), DBMS (Access, DBase III/IV, MySQL, Oracle, MongoDB), UNIX Scripting (all UNIX Shells, AWK, Perl, SED), Security Hardening and Performance (IP Filter, Fail2ban), Storage, Moosefs, Virtualization (SANS, NAS, VMware vSphere Server/vCenter, OpenStack, Xen)

    $33.33 /hr
    4,292 hours
    5.00
  2. Vinoth kumar K.

    Vinoth kumar K.

    Web Scraping Expert, Automation Developer - Web/Desktop(Linux,Win,OSX)

    India - Last active: 1 day ago - Tests: 7 - Portfolio: 6

    - Web Scraping/Crawling - using NodeJS(Request+CheerioJS), PhantomJS/CasperJS, Python (Scrapy/BeautifulSoup), PERL(Mechanize/LWP) & Java(HtmlUnit), Selenium (and making it headless with XVFB) - General Automation (Web/Browser/Desktop) - Greasemonkey/Tampermonkey scripts - General Scripting (Javascript, Python, PERL, Shell Script) - UNIX command-line tools, VIM Try me. You won't be disappointed. What have I got to offer? I’ve got some really good experience & expertise in automation (web & desktop - Linux, Win & OSX), quick scripting & general coding. You can always trust me with almost any automation/coding requirements (ex. unix command line tools, developing quick scripts, tweaking existing scripts, web scraping/crawling, creating APIs) at a fair price and a very quick turnover. When delivering a piece of code/script, I’ll make sure that it is professionally written (to the highest quality & efficiency) and that it has a proper README file (on using it in your local system/host). Exclusive Experience? Web scraping & web crawling are clearly a part of automation and just here in oDesk, I’ve scraped close to 300 websites (all types - static pages, javascript/AJAX heavy websites, CAPTCHA posing websites, IP banning websites etc.) and I’m pretty comfortable with this. About me? I’m passionate about coding and so I always keep learning something new or look around github for some interesting projects to contribute. To me all programming languages are just a set of syntax rules - anyone with strong DS & Algorithm knowledge can learn and master them in days/weeks. Preferred OS: Linux, Preferred Editor: vim If at all you want to interview me, I’m available at Skype (ID: vdraceil) Looking forward to many great work experiences.

    Groups: Sun Certified Professionals

    $44.44 /hr
    300 hours
    5.00
  3. Muhammad Yousuf

    Muhammad Yousuf

    VoIP/Linux Administrator

    Pakistan - Last active: 1 day ago - Tests: 2 - Portfolio: 1

    I always love to learn new technologies and try my best to accomplish new and challenging tasks. 1. Complete IP PBX from scratch (Asterisk and freepbx) 2. Elastix (call center, fax server) 3. PIAF (With all Nerd Vittels scripts and tricks) 4. Trixbox and Freepbx Distro 5. Call center applications (Goautodial, Vicidial, Elastix) 6. Broadcast and AutoDialer(Goautodial) 7. VoIP calling card, pinless calling, wholesale, DID reselling (A2billing) 8. CRM with VoIP integration (Vtiger, SugarCRM, SuiteCRM) 9. Security of Servers and VoIP (Firewalls, Monitoring, Aleting) 10. VoIP security (Application security, Brute force attacks prevention, Fail2ban) 11. Monitoring of Servers and services (Nagios, Opsview) 12. High Availability and Failover (Heartbeat, DRDB, Pacemaker, Corosync) 13. Auto Proviosioning of IP Phones (Multiple vendors) 14. Asterisk custom dialplan 15. Fax server (Hylafax, Avantfax) 16. CDR statistics, Centralize CDR server for multiple Asterisk servers. 17. Missed call notifications, Queues reporting for Asterisk 18. Asterisk Operator Panels (Isymphony, FOP2) 19. VPN (OpenVPN, IPsec, PPTP with firewall security) 20. IVR (Database Backends) 21. Asterisk Integration with Digital PBXs i.e. Avaya, Nortel(sip trunking and PRI trunking) 22. GSM gateways with Asterisk (Openvox, GoIP, Dinstar, Quescom) 23. Networks (Switching, Routing, Security, Monitoring, Alerting, Optimization) 24. Firewalls (Pfsense, UTM, IPTables) I have practically experience of all the above mentioned products and technologies and I completed many custom projects using these. I am not limited to only these technologies, I always welcome to know new technologies and environments. I am always ready for a test job to prove my skills :-).

    $22.22 /hr
    182 hours
    4.97
  4. Jisin J.

    Jisin J.

    Senior Linux System Administrator

    India - Last active: 7 days ago - Tests: 2 - Portfolio: 1

    Providing administration and technical support to web hosting clients via chat and ticketing. Handle different levels of technical issues with servers. Optimizing the server. Familiar with Vituozzo, WHM and cPanel. Configuring and managing users groups, permission levels etc. Backup and Recovery of servers. Installation and Administration of Apache, PHP, MySQL. Apache, PHP recompilations to add-on new modules. Excellent experience in various webhosting and Cloud platforms including AWS / Azure / Vcloud / Rackspace etc. I can also handle development tasks using php, codeignitor, Magento, Wordpress etc.

    $16.67 /hr
    132 hours
    5.00
  5. Deep S.

    Deep S.

    Linux System Admin/AWS Specialist/Linux and AWS Trainer

    India - Last active: 3 days ago - Tests: 9 - Portfolio: 6

    Red Hat Certified Architect & Red Hat Certified Datacenter Specialist & Red Hat Certified Engineer. Specialisation in AWS Platform and services such as EC2,S3,RDS,EBS,ELB,AutoScaling,VPC,Route53,CloudFront and other services. Experienced in Server Security and VPN Setup. Specialisation in Virtualization using VMWare, KVM and Red Hat Virtualization Hypervisor. Hosting virtual Machines on Bare metal servers. Managing virtual machines on VMWare vCenter and RHEV-M Expertise in Hosting LAMP on Cloud and Dedicated Physical Servers. Linux expertise in Red Hat / CentOS / Debian / Ubuntu / Amazon Linux Experienced in Kali Linux, and implementation of security tools on linux. Expertise in providing Remote Server Support - IBM / DELL / HP I've over eight years of experience working in Linux environment and worked on various projects over the year involving Cloud and Dedicated servers. Being sysadmin I have worked on IBM, HP and DELL Rack Mounted Servers. Knowledge of Enterprise Infrastructure technologies and architecture. Worked as consultant on various projects in the past to design and implement an environment which uses SAN, Linux and Clusters to run Applications. Apart from the technical work I am an active member of serverfault.com community and contribute towards community in helping others. Certifications Done: Red Hat Certificate of Expertise in Enterprise Cluster and Storage Management. Red Hat Certificate of Expertise in Deployment and Systems Management. Red Hat Certificate of Expertise in Directory Services and Authentication

    $25.00 /hr
    407 hours
    4.91
  6. vinod kumar

    vinod kumar

    LINUX SYSTEM ADMIN & SECURITY EXPERT

    India - Last active: 2 days ago - Portfolio: 1

    Working as Linux System admin having 8 years experience on Linux cross-platform technology. Key-Skills:- Could Platform:- AWS, Rackspace, DigitalOcean, SoftLayer Linux-Distro:- Linux distro (RHEL, CENTOS, UBUNTU & DEBIAN) Installation , configuration & up-gradation. Web-Services:- Apache & NGINX installation & tweak for higher performance Email-Services:- Zimbra, iRedAdmi, ISPCONFIG & MS Exchange mail solutions. Email-Marketing:- Interspire, Mailchimp & PHPLIST mail marking solutions. Database:- MySql , PostgreSql & MS-SQL installation & tweak. Linux-Security:- IPTABLE, Selinux, TCPWrapper & CFS implementation on Linux. Server-Monitoring:- OpenNms, Ngaios & Zenoss SNMP based monitoring. Chat-Services:- Ejabberd & Openfire integration with existing environment. High-Availability:- Heartbeat & Proxy for HA achievement in Linux. Proxy-Internet:- Squid3 & Sock Proxy implementation & support. SSL-Web:- Apache & Nginx web SSL implementation & consultants.

    $25.00 /hr
    381 hours
    4.57
  7. Navdeep S.

    Navdeep S.

    Linux Administrator, AWS, Chef, Ansible, DevOPS,Docker

    India - Last active: 2 days ago - Tests: 7 - Portfolio: 4

    I am a professional System Admin with lots of experience in AWS,Cloudformation, Chef, Opsworks, Jenkins, Ansible, Docker, Vagrant, monitoring and everything in between. I have lots of experience in managing tomcat, Java, Rails, python and php applications. I've helped many companies with cloud migration and automations. I help startups to fill in the gap for Devops position. My goal is to help companies to streamline the operations so they can focus on the core business. I am very much an expert in following technologies: 1. Expert in Cloud management platform like Rightscale, Scalr, Heroku, Amazon Ec2, PhpFog... 2. Expert with complex configurations of Apache, Nginx, Varnish for high traffic websites with load balancers. 3. I've thorough knowledge of MTA's like Postfix, Exim, Qmail, Sendmail, zimbra. 4. I've tons of experience with Iptables based firewalls APF and ConfigServer for securing Linux servers. 5. Expert in setting up cloud infrastructure on Amazon (AWS) Rackspace 6. Servers will be ready in minutes, using Chef Ansible Docker 7. Get your servers monitored, using: Nagios Icinga Gangila Cacti Munin 8. Version control system setup, using: Git Subversion(SVN) 9. Virtualization Expert in: Xen Vmware OpenVZ Expertise in installing/configruing control panels like Cpanel, Plesk, DirectAdmin, Webmin, Virtualmin...

    $33.33 /hr
    6,779 hours
    4.84
  8. Md Probal Rahman

    Md Probal Rahman

    Network, Firewall and Linux Systems Engineer

    Bangladesh - Last active: 3 days ago - Tests: 10 - Portfolio: 3

    Network Engineering position that capitalizes on expertise in CISCO Routers/Switches & ASA Firewalls, Linux/Unix (RedHat, Debian, SUSE, BSD, CENTOS, FC, Ubuntu etc), Windows 2000/2003/2012 R2 platform. Dedicated to pursue further challenges in the field of Networking Engineering wherein my skills and knowledge will be highly developed and utilized. Maintain focus on achieving end-results while demonstrating strategic problem solving skills and ability to follow through with multi-tasking job. Can work with any new challenges especially in the Networking and System platform with minimum instructions. I am also experienced with other vendor swithces such as 3Com, LinkSys, Prolink etc. Firewalls from other vendors such as NetScreen, Fortigate 1000FA2, SonicWall, Monowall...Confident in HTML troubleshooting, Mail Servers in Linux Platform, RDS in Windows 2008 & 2012 R2, MySQL, SQUID, DHCP/DNS Servers and Opensource applications in Linux platforms..

    $33.33 /hr
    164 hours
    4.98
  9. Abu Sufian

    Abu Sufian

    Linux,VoIP and Windows Server/Network Administrator

    Bangladesh - Last active: 13 days ago - Tests: 9 - Portfolio: 10

    I have over 6 years of hands on experiences in maintaining various servers mostly Microsoft & Linux based systems. Areas of my expertise are: 1. Asterisk, Elastix, Trixbox, FreePBX, Vicidial, A2Billing 2. Amazon EC2,S3,VPS,VMWare,ESXi,Xen,Open VZ 3. Mysql & MSSQL server 4. Windows based Servers, LAMP, Mail, DNS, Proxy Server 5. OpenVPN and L2TP/IPSec VPN 6. Webmin,Cpanel, WHM,Zpanel 7. Cisco,Mikrotik, DD-WRT,OpenWRT

    Groups: Microsoft Certified Professionals

    $8.00 /hr
    1,681 hours
    4.99
  10. Ajin P.

    Ajin P.

    Linux Server Administrator (cPanel/WHM/Plesk)

    India - Last active: 1 day ago - Tests: 4 - Portfolio: 6

    I am a cPanel/WHM server expert with the following knowledge and experience. cPanel Setup and it's administration. Administration of Linux servers. Ticketing and handling client chat Mail Server Administration Exim, Qmail, Postfix. MySQL Data Base Administration. Security updates and application software installation. Implementing security mechanisms and Spam removal. Nginx Installation and Configuration Installation of Softaclous & Fantastico CSF, and IP tables configuration and management. Backup and Restore of hosting accounts. Name server Management and Domain name registration. Blog Administration of clients Bash Shell scripting and perl scripting. Professional Qualifications. B.Tech Computer Science and Engineering Certifications: RedHat Certified Engineer(RHCE) L1: cPanel Base Certification: Technical L1: cPanel Base Certification: Sales Thank you.

    $15.00 /hr
    562 hours
    4.85