Linux Freelancers

Showing 27,346 freelancers

Linux Freelancers

Showing 27,346 freelancers

  • GNU/Linux system administrator

    Hello, my name is Arseniy Chernyakov. I have four years of experience in the field of professional system administration (small & medium office networks, 2000+ hosts university network), network planning, server, website and database administration. As a professional, my #1 goal … more

    Hello, my name is Arseniy Chernyakov. I have four years of experience in the field of professional system administration (small & medium office networks, 2000+ hosts university network), network planning, server, website and database administration. As a professional, my #1 goal will always be to meet your needs and deadline. When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. I have 6 research publications on the subject of backup mechanics and algorithms, network security, highload systems and cryptographic protocols. Please take a look at my work history for comments from other clients, as well as oDesk test results. Thank you in advance for your time and consideration. I look forward to working with you soon. Listed below are my experience and skills: * OS: Windows Sever 2003, 2003 R2, 2008, 2008 R2, 2012; Windows XP, Vista, 7, 8; Debian 5-7; CentOS 5, 6, 7; Ubuntu (desktop 10.04-14.04, server 12.04-14.04); Arch, Slackware, Gentoo; Mac Os X * Coding: C/++, bash, powershell, HTML/CSS/PHP, SQL * Stacks: LAMP, WAMP, Denver * Web servers: Apache, Nginx * Databases: MySQL, PostgeSQL, Micosoft SQL (MSSQL) Server, Oracle database 12c+ * Backup services: Bacula, BackupPC, Amanda, Windows Backup (wbadmin), self-written scripts * VCS: Git, SVN * Domain administration: Active Directoy, Samba * Mailservers: Postfix, Dovecot * Mail tech: spamassassin, SPF, DKIM, un-blacklisting * Netwok secuity: fail2ban, snort, Sqiud, ClamAV  less

    unix-system-administration firewalls tcp-ip network-administration linux-system-administration network-security mail-server-implementation apache-administration lamp-administration microsoft-active-directory 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 34 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 7 TESTS
  • C++/C/Python/Qt programmer, Linux admin

    I am Linux enthusiast with 8 years experience. I have experience in deployment of small bussiness Linux servers/workstations, advanced networking (vpn, p2p vpn, routing, firewalls etc.), encryption and backups (lvm, cryptsetup, rsync, incremental backups with deduplication, snapshots etc.), kiosk … more

    I am Linux enthusiast with 8 years experience. I have experience in deployment of small bussiness Linux servers/workstations, advanced networking (vpn, p2p vpn, routing, firewalls etc.), encryption and backups (lvm, cryptsetup, rsync, incremental backups with deduplication, snapshots etc.), kiosk development with diskless boots, print and scan servers, data analization (store data from excel to sql database), advanced work with Wine (free implementation of Windows on Unix), voip (dialplans, call recording, network encryption etc.), virtualization (libvirt, kvm, lxc, chroots).  less

    linux-system-administration python c 00 more less
    • $15.00 HOURLY RATE
    • 5.0
    • 162 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 9 TESTS
  • Senior IT Specialist

    Hi, my name is Roman, I'm a Senior IT Specialist in a huge russian company Mail.ru Games, and I have a lot of experience(about 10 years) in Linux-like operation systems. Also I'm a leader of cyber … more

    Hi, my name is Roman, I'm a Senior IT Specialist in a huge russian company Mail.ru Games, and I have a lot of experience(about 10 years) in Linux-like operation systems. Also I'm a leader of cyber security team, which took part in many CTF competitions. I like my job and people and I can help you for a decent pay. Keywords: Linux, Unix, FreeBSD, databases, postgres, postgresql, mysql, percona, dbms, web server, apache, nginx, shell scripts, bash, zsh, mail servers, filesystems, ext2, ext3, ext4, python, ruby, ror, rails, ruby on rails, information security, dns, bind. bind9, named, dhcp, isc-dhcp-server, nfs, cifs, samba, smb, ssh, ftp, vsftpd, proftpd, zabbix, nagios, monitoring, hacking, security, firewall, iptables, netfilter, ipfw, network, backup  less

    unix-system-administration unix-shell mysql postgresql ruby nginx linux-system-administration network-security penetration-testing apache-administration 00 more less
    • $25.00 HOURLY RATE
    • 5.0
    • 4 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
  • AWS Architect/Engineer/Devops

    Over the last 10 years, I have been working as technical support engineer/team leader/infrastructure architect for several large companies (hosting companies with more than 1000 of dedicated and several dozens of VPS servers, ecommerce application companies, small and … more

    Over the last 10 years, I have been working as technical support engineer/team leader/infrastructure architect for several large companies (hosting companies with more than 1000 of dedicated and several dozens of VPS servers, ecommerce application companies, small and large companies with different cloud setups from several to several hundreds of instances) My competency lies in planning, development, deployment and setup of new production environments, troubleshooting/support/improvement of existing production systems based on Linux/Unix. Have a lot of experience in automation/monitoring/backup of different distributed environments with LAMP stack and other applications, different clustering, scalability and high-availability techniques.  less

    linux-system-administration amazon-ec2 clustering bash apache-tomcat ftp dns centos ubuntu subversion atlassian-jira mysql nagios lamp-administration memcached git rightscale amazon-web-services unix-shell redis squid haproxy mail-server-implementation postfix qmail apache-administration project-management github version-control plesk load-testing devops 00 more less
    • $38.89 HOURLY RATE
    • 4.9
    • 1541 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 11 TESTS
  • Atlassian products Expert (Jira, Confluence, Agile, etc.). 7 years

    7 years experience working with US companies. Deep understanding not only Atlassian products, but also how they can be used in different situation / businesses. Atlassian products administration: Jira, Confluence, Bamboo, Agile, FishEye, Crowd, Crucible Certified Atlassian Expert __________________________________________________ 1. Atlassian … more

    7 years experience working with US companies. Deep understanding not only Atlassian products, but also how they can be used in different situation / businesses. Atlassian products administration: Jira, Confluence, Bamboo, Agile, FishEye, Crowd, Crucible Certified Atlassian Expert __________________________________________________ 1. Atlassian products support: Jira, Confluence, Bamboo, Crowd, FishEye, Crucible 2. Add-ons development 3. Jira upgrades and migrations 4. Integration with other systems 5. Staff Consultancy & training  less

    atlassian-jira linux-system-administration sql atlassian-confluence atlassian-greenhopper 00 more less
    • $33.00 HOURLY RATE
    • 4.7
    • 295 HOURS
    • POLAND
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 2 TESTS
    ASSOCIATED WITH:
  • Technical Leader

    He graduated from Jilin University, majoring in grid computing. After graduation, he joined Baidu as an R&D engineer of the Ministry of the Web search; subsequently, he transferred to the IT department, and committed to the development of workflow … more

    He graduated from Jilin University, majoring in grid computing. After graduation, he joined Baidu as an R&D engineer of the Ministry of the Web search; subsequently, he transferred to the IT department, and committed to the development of workflow software which was used by Baidu Phoenix Nest and lots of systems. As an IBMer, he is the team lead in China of Platform Symphony Continuous Engineering team now; continue to contribute his passion to build the best SOA middleware. For the skill, he is a generalist; from C++ to Java, python, php, shell; from Grid/Cloud to Internet, JavaEE, Database, Operation; but his primary skill is to understand the user case quickly and provide suitable solution.  less

    c++ linux-system-administration unix-shell project-management c unix-system-administration tcp-ip java 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 2 HOURS
    • CHINA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 5 TESTS
  • System administrator

    VMware Certified Associate, Linux admin, Nagios admin, Windows admin on enterprise level.

    linux-system-administration 00 more less
    • $22.22 HOURLY RATE
    • 4.8
    • 0 HOURS
    • SERBIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 10 TESTS
  • Linux administrator with website migration and development experience

    Security analyst; Malware removal; Server securing; Server administration; Website migration; Server optimization; Website optimization. God of email. God of migration :)) 100% positive feedbacks, prooved experience and portfolio. I'm specialist of: System Administration, Linux (CentOS, Ubuntu, Debian), Security Setup, Domain … more

    Security analyst; Malware removal; Server securing; Server administration; Website migration; Server optimization; Website optimization. God of email. God of migration :)) 100% positive feedbacks, prooved experience and portfolio. I'm specialist of: System Administration, Linux (CentOS, Ubuntu, Debian), Security Setup, Domain Migration, Domain Fixing, Server/Website speed Optimization, MySQL, Website Development and other. My experience installing and configuring servers is about 15 years. I have several working projects developed by me and written by me. They are located on a server that is configured by me. In addition, I have experience of writing various scripts, experience network security, installation and optimization of MySQL, etc. I hope I will be the best choice to start your project from scratch, even if he plans to be heavily loaded. My primary skills: 1) Migration skills: complete domain migration from legacy to new platform, including web content, email, database, DNS. 2) SEO skills: search optimization, including server setup and source-code optimization. 3) Website creator skills: using CMS or just plain editor, experience with heavyload projects. 4) Linux system administration skills: server setup, web-servers administration(apache, lighttpd), database optimization for heavy-loaded projects. Experience with cluster system, and rpm\deb based Linuxes. 5) Security analysis skills: searching of malware, checking vulnerabilities, website security, detecting outside intrusion or leaks etc. 6) Backup and recovery skills: backup and restore webcontent, email, using my own software or generic applications. I'm seeking for following projects: 1) System administration 2) Domain migration 3) Website developpment 4) Search Engine Optimization 5) Security administration 6) Server setup  less

    linux-system-administration bash-shell-scripting domain-migration mysql php centos lamp-administration dns wordpress cpanel 00 more less
    • $15.00 HOURLY RATE
    • 4.9
    • 10 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
    ASSOCIATED WITH:
  • IT consultant, LAMP expert, Linux/Windows Server Admin and SEO Expert

    From IT consultancy for small/medium businesses to network and server administration including SEO/SEM, internet marketing, and project management I have been there. I have been working online for my own projects (B2B and B2C) as well as clients … more

    From IT consultancy for small/medium businesses to network and server administration including SEO/SEM, internet marketing, and project management I have been there. I have been working online for my own projects (B2B and B2C) as well as clients projects and a freelancer for 13 years so far. If you are looking for someone who is "jack of all trades", you just found him. Trexle, the company I am associated with, is my own foundation and it has been there since 2005 til today.  less

    lamp-administration linux-system-administration 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 0 HOURS
    • EGYPT
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 2 TESTS
    ASSOCIATED WITH:
loading