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Last updated: October 1, 2015
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Alexandru V.

Alexandru V.

Senior Linux Administrator

Romania - Tests: 4 - Portfolio: 2

* Fully manage the installation, configuration and troubleshooting of Linux servers * Install and configure Web Servers and MySQL * Install and configure customer scripts and programs * Monitor performance to identify and resolve issues using a suite of systems and tools. * Troubleshoot and resolve network, system, hardware and software problems. * Achieve quick fixes and / or long-term solutions as needed. * Maintain 100% customer satisfaction through all available means.

100% Job Success
$20.00 /hr
126 hours

Sergiy R.

Sergiy R.

Linux System Administrator

Ukraine - Tests: 9 - Portfolio: 1

I am an experienced System Administrator with a wide range of skills, including Linux servers administration, LAMP stack setup, OpenVZ and KVM virtualization, configuring services, working with version control systems and writing system maintenance scripts. I have a hands-on experience with Linux, including Ubuntu, CentOS, Red Hat, Gentoo and Debian distributions. I am able to code in OCaml, C, C++, Ruby (including Ruby on Rails), Bash/Zsh and read Java, Python, Haskell, Perl and Common Lisp programs. My most important virtues are: extreme responsibility, easy communication and attention to details.

100% Job Success
$40.00 /hr
476 hours

Andrei Volkov

Andrei Volkov Agency Contractor

Linux specialist (Sec/Opt/Dev, C/Perl/Python/PHP/BASH)

Belarus - Tests: 5 - Portfolio: 13

Important: ------------------- Enhanced shield of your Web application with mod_security! Should be always. It is task #1 after installation ANY web application! ------------------- About Me and more: ------------------- I have over 16 years of work experience with Linux systems. This is the list of software and technologies with which I deal. This list is not full and expands day by day. I always can find right decisions if I found some problems. And I am always interested in looking for mostly economical and productive solutions. Of course, Cpanel, WHM, Webmin, Plesk .... I know how are working these web-wrappers and I support their. I can will tune and to make the checking of these wrappers. But that more important !! I can work without this))) Directly use configuration files of services and etc etc. Usually, it is better way on dedicated servers. ) TCP, IPv4 , IPv6, IPX ... - WiFi, WEP, WPA, WPA2 ... - SElinux, Apparmor, Smack, Tomoyo ... - LAMP ( Apache, Nginx, PHP, Perl, Mysql, Mongo), REDMINE ... - Cpanel, Zpanel, ISP ... - MySQL clustering and replication DNS servers ... - SENDMAIL, EXIM, POSTFIX (POSTFIXADMIN,MYSQL,DOVECOT,POLICYD) ... - HPC system: Torque, Maui, Moab for HPC clusters, Infiniband, FC interconnect, iSCSI, SCST, DRBD, OFED, OPENMPI ... - OpenLDAP ... - VPN with OpenVPN, PPTP, StrongVPN ... - Nagios, Zabbix, Ganglia, OSSEC ... - SVN, CVS, GIT ... - KVM, Xen, OpenStack, Proxmox ... - NBD, RAID, LVM ... etc etc During these years I have been in a large number of tasks related to administration of network devices, as well as with simple and complex server systems. I manage servers for the HPC tasks and for network infrastructure of Internet and Intranet - DNS,DHCP,*FTP,HTTP(S),MAIL etc etc. The main goals - the monitoring of the performance and the security. I also implement tasks of data backup and troubleshooting, support for the users. I have comprehensive work skills with systems based on Debian, Redhat, CentOS, SLES, OpenSuse. I've got more than 8 years of experience in developing the different software with use of C, Perl, Python, Bash, HTML on system and user levels. For example, very important skill in developing and the modification of RPM packages (rpmbuild, rebuild, kernels), custom kernels and etc etc. ------------------- Often: ------------------- How the standart service for VPS's and VDS's projects and dedicated servers: IDS, IPS, the control of contents of log's files, the control of load of the cpu, the memory, the hard disks; the backups of the databases and the files; install or update software, consultations. Emergency call via sms to cell phone. ------------------- STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. VERY OFFTEN: IF YOURS WP WAS HACKED 1. disable plugins 2. execute # diff -r dir1 dir2 3. repeat for plugins if you have last version of WP code: ~ 80% cases - problems: plugin low quality (look on author: from where and who is) ~ 15% cases - problems: theme low quality (look on author: from where and who is) ~ 5% 0day of WP also you need disable all shell function in php and enable suphp/suexec modes. STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. I am getting a lot questions about reliability and quality distributives/clones Ubuntu. Results on practice - Ubuntu clones - worst for server. It is truth. If you $buntu guy, I can't help you right now. I only can recommend Debian way for server. =============== 3. Nginx of course is good program. For small/middle vps. But in serious projects - apache. Nginx will be suitable for frontend. It is only practice. Always for all web application should be mod_security module. Firewall of level of web application on 7 level of OSI. Each web application/site should be under own user in environment of vps or on dedicated servers. =============== 4. By topic Wordpress. For optimisation services of OS , namely system IO(type of disks or partitions) and DB(type of engines of tables), need to use empty installation (default variants). Most problems of work WP contains in itself - customized plugins or themes. For analyze pages need begin with such services as =============== Sunday - day of rest. Or in emergency case - payment with double rate. best regards, Andrei / PS: With love from USSR. ;-)

Associated with: UPWORK.LINK

100% Job Success
$16.00 /hr
1,023 hours

Alexis Cimpu

Alexis Cimpu

System Integration Advisor

Romania - Tests: 4

I have worked for different companies where I gained my experience on different platforms now have a specific set of skills. Also, thanks to my pursued university, Polytechnics Bucharest, I have a good base in C/C++ and other programming languages.

91% Job Success
$11.11 /hr
106 hours

Ilya O.

Ilya O.

Java Junior

Russia - Tests: 2

Reasons to hire me: * my goal is a satisfy you needs due to my specialty * actually i like my work * highest quality * I am friendly and sociable Skills what i have: * Programming Languages: Java, Python, Ruby, Lua * Frameworks: RubyOnRails, Django, Spring * Android Development skills * Git, Subversion * Setup linux software and services * System administration

$12.00 /hr
3 hours

Andrey Semenyuk

Andrey Semenyuk

System Architect

Russia - Tests: 6

14 years I have participated in software development in different roles from programmer to architect. I have developed a wide range of products starting from small standalone utilites to big enterprise systems. I offer to you my deep expertise in computer systems and object-oriented programming such as: C/C++, Java, UNIX/Linux, software design and architecture, people management and much more.

$15.00 /hr
31 hours

Manuel Montero Alba

Manuel Montero Alba

Your windows systems administrator

Spain - Tests: 6 - Portfolio: 14

Always learning, never stop, always hungry for knowledge I'm a creative mind that wants to start freelancing as young as...well, I learnt about freelancers. I fell in love with this world just by reading, getting to establish work relationships with people all around the world, isn't that appealing? It's now time for me to notice if it's as pretty as I've read. I'm an IT professional with experience on systems administration and web programming, something around 2 years. Although I consider myself an outstanding programmer, I know there are lessons to learn, and I don't really mind since If I didn't like learning I wouldn't have chosen this career, would I? My main objective right now is to get as much experience possible either in systems administration, a field I love, or web programming, a field in which I have experience and love as well, in a lot of different projects if possible, varying the experience from one to the other. Hope to make business with you reader Manuel M.A.

$15.00 /hr
2,449 hours

Igor Taskovski

Igor Taskovski

PHP Developer

Taiwan - Tests: 8 - Portfolio: 4

I strive for excellence and constantly educate myself and develop my professional skills in order to maximize career opportunities. Among my characteristics is the ability to communicate effectively at different levels and having successfully undertaken a variety of roles throughout my career, I believe I am a flexible employee. I can positively contribute with leadership and managerial skills to a project and have developed strong motivational skills. I also have the ability to work effectively in a team environment. I have a lot of experience working with PHP, JavaScript, HTML, CSS and Wordpress developing websites for small and medium sized businesses. During my daily job in my current position, I mostly use PHP, JavaScript, SQL, XML and BASH. SKILLS • Proactive learner, self-motivated, detail-oriented and well organised • Very resourceful and trainable, responsible and reliable team player with a set of strong technical skills • Ability to work independently and efficiently to meet deadlines • Excellent communication, documentation, interpersonal, organisational and presentation skills • Ability to adapt quickly to an existing, complex environment • Ability and willingness to quickly learn new concepts and software • Proven skills in working with people from a diverse array of backgrounds and cultures • Strong verbal and written communication skills COMPUTING AND TECHNICAL KNOWLEDGE • PHP, JavaScript, Perl, EPM, XML, Linux Shell scripting, MySQL, Oracle SQL, HTML, CSS, Putty, SSH Client, FTP, VMWare, VirtualBox, JIRA, IBM Lotus Notes • Experience with hardware and software issues • Specialised in working with command line in UNIX/Linux systems • Experienced with LAN administration including installing switches, wireless routers, etc.

100% Job Success
$18.00 /hr
629 hours

Merineth E.

Merineth E. Agency Contractor

L3 Web Hosting Support, Technical Support, Wordpress Expert

Philippines - Tests: 5 - Portfolio: 6

I have been working in the IT industry for more than 8 years. I have a lot of experience in web and software development, technical support, system administration both Linux and Windows platform. L3 support administration. I can say that I am really good when it comes to Webhosting and I am very well rounded with Technical, Billing, Customer Support, Server Management, You name it. Expert in Wordpress, Joomla, OSCommerce, and other CMS applications this includes Web hosting technologies such as OpenVZ, Virtuozzo,SolusVM, Plesk, cPanel,H WHM, WHM, cPanel, WHMCS, HSPhere, Pleskbilling. Expertise in creating Windows OS Recovery software. Made custom bash scripts for webhosting companies to automate wordpress installation. WHM/cPanel installation and maintenance. Experience with various IT activities specifically perform OS installation, setup, configuration, upgrading and maintenance of desktop PC, OS, software and related peripherals. knowledge on MS Office, Windows (98, XP, Vista, 7) RedHat Linux, Ubuntu, CentOS & AIX. Setup configuration for Linux OS and dedicated servers, DNS management and webserver setup (, Apache, MySQL, PHP, Joomla and Xampp setup) I am and output driven individual and produce 100% results,and finds joy in being able to resolve a customer needs regarding the product or services. I am also open to new learning that may benefit the company that I am representing.

Groups: Bluehost Developers and Designers

Associated with: Web Works

75% Job Success
$16.67 /hr
2,270 hours

Harry P.

Harry P.

Web Hosting, Server Administration & Security

United Kingdom - Tests: 7

Extremely competent with all aspects of web hosting, server administration (Linux) and IT security. I've been in the hosting industry for 7 years, 6 of those founding and running a highly respected UK company exposing me to most control panels, LAMP, monitoring, hardware replacements etc etc. Additionally I have substantial experience in operations management, online marketing, leading customer support and online payments (notably: increasing conversions, simplifying the order process and reducing chargebacks). I can work with you for short or long-term adhoc projects for both startups and larger enterprises for tasks such as website/server migrations without downtime, increasing server security & performance, setup of servers/networks etc and automation/monitoring. I can also give advice on the day-to-day running of IT (specifically eCommerce), assistance combatting chargebacks to reduce the risk of lost processing and help you provide better customer support. Please review my oDesk freelance work history.

88% Job Success
$50.00 /hr
1,132 hours