CentOS Freelancers

Showing 457 freelancers

CentOS Freelancers

Showing 457 freelancers

  • Senior Linux Administrator / Asterisk / VoIP / cPanel / Perl / BASH

    I am a senior technical engineer who has 15 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Knowledge of shell scripting Network Administration Network Security (Penetration Testing) Server Auditing Technical Support Virtualization (mainly Parallels Virtuozzo/openVZ … more

    I am a senior technical engineer who has 15 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Knowledge of shell scripting Network Administration Network Security (Penetration Testing) Server Auditing Technical Support Virtualization (mainly Parallels Virtuozzo/openVZ/ProxMox) Web hosting Control panels such as cPanel,Plesk,DirectAdmin Tweaking and Optimizing Apache for better performance Hardening PHP Data recovery Asterisk/Trixbox/Elastix/VoIP solutions.  less

    linux-system-administration asterisk mysql cpanel whm centos samba apache-administration perl security nagios bash freepbx trixbox 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 5269 HOURS
    • EGYPT
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 7 TESTS
  • Network Expert (Cisco CCIE), Linux/UNIX Administrator(RHCE,SCNA)

    I am an Cisco Expert in both Routing&Switching (CCIE R&S) and Service Provider (CCIE SP), Professional in Network Security (CCSP). I have extensive experience with Cisco, Juniper, HP networking hardware and technologies, and strong on the side of … more

    I am an Cisco Expert in both Routing&Switching (CCIE R&S) and Service Provider (CCIE SP), Professional in Network Security (CCSP). I have extensive experience with Cisco, Juniper, HP networking hardware and technologies, and strong on the side of UNIX systems - with emphasis on Linux and Solaris but also FreeBSD. Microsoft OSs are also part of my experience. I am certified in Linux/UNIX:RHCE on RHEL3 and SCNA on Solaris 9 and 10. I am also Microsoft-Certified: MCSE.  less

    cisco-routers security wan linux-system-administration centos solaris-administration cisco-ios firewalls cisco-asa network-administration dns 00 more less
    • $45.00 HOURLY RATE
    • 5.0
    • 5210 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • Linux Admin

    I'm a Linux admin with over 19 years of experience in shared, dedicated and cloud server administration and control panel (mainly cPanel 9+ years) installation and maintenance. I'm also well diverse in development of small to large Corporate … more

    I'm a Linux admin with over 19 years of experience in shared, dedicated and cloud server administration and control panel (mainly cPanel 9+ years) installation and maintenance. I'm also well diverse in development of small to large Corporate Web sites, Intranets with a wide range of design, implementation, and maintenance online skills. Server Administration includes servers from RackSpace, HP, and Amazon AWS. Control Panels includes, but not limited to cPanel, Enkompass, VirtualMin, WebMin, Plesk.  less

    centos fedora cpanel linux-system-administration windows-administration technical-support tcp-ip web-content-management web-design apache-administration mysql dns postfix postgresql 00 more less
    • $11.11 HOURLY RATE
    • 5.0
    • 116 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
  • Senior Systems & Network Engineer

    I have over 15 years of experience in the IT field, having worked at some of the most demanding environments as a Security expert and a Senior Unix System administrator (FreeBSD/Linux). I specialize in complex ISP based UNIX installations … more

    I have over 15 years of experience in the IT field, having worked at some of the most demanding environments as a Security expert and a Senior Unix System administrator (FreeBSD/Linux). I specialize in complex ISP based UNIX installations, corporate Mail servers, Web servers, Database servers and large ZFS based storage solutions. I have extensive knowledge in Virtualization technology. I have being involved with various type of Cloud solutions especially with OpenStack and CloudStack. I also perform installations, maintenance and troubleshooting of Network Security devices for corporate based environments. Being very familiar with Cisco ASA, FWSM and Checkpoint SecurePlatform and IPSO.  less

    freebsd security unix-system-administration vpn linux-system-administration centos rhel solaris-administration firewalls mail-server-implementation apache-administration amazon-ec2 virtualization mysql 00 more less
    • $50.00 HOURLY RATE
    • 5.0
    • 349 HOURS
    • GREECE
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 10 TESTS
  • Linux System Administrator

    Linux Administrator with over 5 years of experience supporting very large number of Linux Servers (1000+) for Content Delivery Network (CDN). Specialize in performance optimization, automation using puppet, monitoring Nagios, scripting using bash and python. Advance knowledge of TCP/IP networks. Looking for a part time Linux/Unix consultant or administration position.

    linux-system-administration freebsd samba splunk apache-administration centos puppet-administration 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 0 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • PowerMTA Administrator

    Have administration experience on linux servers and mtas. Have been managing PowerMTA servers since 2008,have deep experience on managing pmta. Achieved sending 150K emails in a minute,1 billion emails in a month to inbox! Currently sending more than … more

    Have administration experience on linux servers and mtas. Have been managing PowerMTA servers since 2008,have deep experience on managing pmta. Achieved sending 150K emails in a minute,1 billion emails in a month to inbox! Currently sending more than 300 million emails in a month to inbox! Deliverability experience on mainly Hotmail,Yahoo and Gmail. Currently open to exciting offers and projects. Specialties System Administrator PowerMTA Administrator Email Deliverability Specialist  less

    linux-system-administration cpanel whm windows-administration centos smtp email-deliverability-consulting email-technical-support email-handling 00 more less
    • $55.56 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • TURKEY
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 2 TESTS
  • Cloud Architect on Amazon AWS, Google Cloud Platform & Microsoft Azure

    I am a Cloud Architect. I have migrated over 100+ applications to the Amazon AWS, Google Cloud Platform and Microsoft Azure. I have strong expertise in optimizing various technology stacks for cloud. I have strong experience in designing and architecting … more

    I am a Cloud Architect. I have migrated over 100+ applications to the Amazon AWS, Google Cloud Platform and Microsoft Azure. I have strong expertise in optimizing various technology stacks for cloud. I have strong experience in designing and architecting highly available and fault tolerant solutions on cloud. I led complex migrations involving Java, LAMP, CMS applications and enterprise applications to Cloud. I was instrumental in implementing DevOps,Backup/Restore, Monitoring, and Disaster Recovery strategy for enterprise customers. I helped many customers for implementing technical solutions including architecture, migration, managed services and security audits. To know more about me, please visit my profile here : about.me/praveen.muppala  less

    amazon-web-services windows-azure redhat-administration centos ubuntu bash-shell-scripting perl lamp-administration mysql postgresql 00 more less
    • $33.33 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Over the last 4 years, I have worked MULTINATIONAL IT COMPANIES I managed followings: RedHat Linux OS Support to the Banks. Solaris 10 OS Support to the Banks and Mobile Network Companies. Hardware and Sun Oracle Server Support to Banks … more

    Over the last 4 years, I have worked MULTINATIONAL IT COMPANIES I managed followings: RedHat Linux OS Support to the Banks. Solaris 10 OS Support to the Banks and Mobile Network Companies. Hardware and Sun Oracle Server Support to Banks and Mobile Network Companies. Server Racks Replacement with Oracle Racks for Bank DATA CENTRE. More than 300 Server Parts Replaced of Sun Oracle Sparc and Intel Servers also HP Servers. FTP Server Configuration and Implementation. Postfix Mail Server Implementation. CentOS 5.x,6.x System Engineer. Bash Scripting Expert. Rsync and Manual Backup Expert. RedHat Linux Expert. Cacti NMS Expert on Linux Data Duplication Handing and converting duplicates to single entry for Huge Data (In Millions). Wireshark Tracer Installation and Configuration Expert.  less

    linux-system-administration centos solaris-administration system-automation data-backup postfix ftp elastix bash-shell-scripting data-entry 00 more less
    • $6.67 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
  • Expert in Linux administration

    Over 7 years dealing with IT technologies, I have gained wide range of experience and skills. I am having strong experience in shell scripting and linux administration. Have worked on presenting storage and extending file system using logical volume manager … more

    Over 7 years dealing with IT technologies, I have gained wide range of experience and skills. I am having strong experience in shell scripting and linux administration. Have worked on presenting storage and extending file system using logical volume manager. Having strong knowledge on creating and managing virtual machines. Have installed and configured samba, nfs, ftp, http in linux and solaris. I am most experienced in working on presenting storage from EVA 8400, EVA 4400 to DL 385 G7, DL 380 G6 machines using Fiber Cable and then extending the logical volume manager to accurately fulfill our storage requirements. Configuring ILO conections for dual network accessibility, configuring hard disks in LVM on different RAID levels for redundancy, installing dual power supply for power availability and configuring cluster services for high availability. I have worked with the following applications, operating systems and technologies: - Operating Systems - SuSe/RHEL/Debian/Ubuntu/CentOS/Win2k3 /Win2k8/AIX/HPUX/Solaris - Virtualization (ESXi 3.5, 4.1, 5.1) - Source code repositories (SVN,GiT) - Infrastructure monitoring (Nagios,Sitescope)  less

    bash-shell-scripting ksh-korn-shell unix-shell linux-system-administration solaris-administration virtualization ssh centos kvm-virtualization network-security 00 more less
    • $11.11 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 4 TESTS
  • Expert Linux, Server, Networking, Database, Web Desainer

    I'm first winner IT-Networking Support (now IT Network Systems Administration) competencies proposed is to assemble a computer, install the client computers, servers and routers. Debian server using DNS Server, FTP, Proxy, Web Server, Email Server, etc. But I'm … more

    I'm first winner IT-Networking Support (now IT Network Systems Administration) competencies proposed is to assemble a computer, install the client computers, servers and routers. Debian server using DNS Server, FTP, Proxy, Web Server, Email Server, etc. But I'm experience too with CentOS. Then I was also a teacher in Networking Support (Network Systems Administration). During work on the big companies, I was in the department of IT-Hardware and Networking. The system used was CentOS and Ubuntu. And at my university, I was educated using cisco router. So I'm very capable in the areas of Networking, ranging from MikroTik system, CentOS, Debian, Cisco, etc.. Other than that I was also able to build a website, wordpress, and has worked on several projects for the construction website agencies or company . I also reliable as well as with databases, especially MySQL  less

    web-design network-administration computer-networking website-development wordpress linux-system-administration cisco-routers centos ubuntu mysql 00 more less
    • $5.00 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • INDONESIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
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