Curriculum Vitae Personal Contact Information Name: Georgi Georgiev Address: Dobrich, Maxim Gorki 5 Dobrich, Bulgaria Mobile: +359889085362 E-mail: [email protected] PROFESSIONAL CERTIFICATION Cisco CCNA2 certificate Management Game Certificate (Arnhem Business School) University education: 2006 - 2008 Studied 2 years in International University College – Dobrich, Bulgaria specialty of "International Business and Management". Currently I am graduating HRQM (Human Resources & Quality Management) student at “Arnhem Business School” The Netherlands. I'm looking for a company to start with my Graduation assignment which has to be in the field of Strategic Human Resources. Secondary School Education: Natural-Mathematics High School "Ivan Vazov", Dobrich Study Profile: Mathematics and Informatics with intensive learning of English Language Form of Education: by day, term of education 3 years Driving License: Category B Mobile: +359889085362 Georgi Dimitrov Georgiev Mail: [email protected] Personal Information Birth Date: 08.10.1983 Place of Birth: Dobrich, Bulgaria Citizenship: Dobrich Merital Status: Single Work Experience 23.05.2001 - 01.09.2002 - Windows and Linux Tech support at Internet Coffee Club in the town of Dobrich, Bulgaria Worked in a small Internet Coffee my task was to support the local Internet Router and Support user desktop stations running Windows 98, Windows XP, Mandrake Linux, Redhat Linux. 20.02.2003 - 25.03.2004 - remote Linux System Administrator at Internet Coffee Club located in the town of Radnevo, Bulgaria My job assignments there were to administrate remotely two Linux servers running different client services, like mail server (exim), linux firewall, samba server, apache 1.x webserver and also to help the IT personnel in the Internet club with maintenance advices. 30.04.2004 – 29.10.2009 - Senior System Administrator in Design.BG Studios ( http://www.design.bg ) , Varna Bulgaria My responsibilities included: 1. Take care of Local Office LAN Network. 2. Update and maintenance of Desktop Linux PCs 2. Remotely and local administration of dedicated Linux/BSD servers located in the USA Miami, Bulgaria Sofia. 3. Work in team with Bulgarian and Switzerland colleagues 4. Keep track of server problems (24 hour support line), and fix them as soon as possible, this usually included a lot of phone conversations with IT personnel in USA and Sofia. Mobile: +359889085362 Georgi Dimitrov Georgiev Mail: [email protected] 5. A sort of Tech support for our company clients, (help them solve IT issues) All of my work experiences have involved working within, a team based culture. This involves planning, organizing, coordination and commitment. 6. Maintaince Windows XP systems and fixing issues with IT developers work stations. 7. periodic security Audit of Windows and GNU/Linux based systems 29.05.2011 – 17.08.2011 – Remote System Administrator in Santrex ( http://www.santrex.net), (International UK based company) 1. Responsibility to maintain about 100 Linux servers 2. Solve client issues via WHM ticketing system, problems were related to Email, hosting, VPS FTP, shoutcast, CentovaCast IRC, Linux, Windows etc, Cpanel 3. Server optimization to improve server overall operations (systctl tunings, MySQL and LiteSpeed optimizations) to solve issues with Linux Hosting servers, each of which was hosting more than 1000 websites 4. Server (iptables) based firewall configuration and optimization for critical environment 5. Writing bash shell scripts to mitigate server down times, caused by clients who used OpenVZ VPS nodes to launch DoS and DdoS attacks as well as aid scripts to easily track and catch users who are using services for illegal activities. 6. Added numerous server configurations to prevent severe DoS attacks which was constantly targetting the many OpenVZ and Xen Linux nodes. 7. Work with Data Centers ticketing system and personal located throughout Europe, Asia and America (servers in Russia, US, Germany, UK, Netherlands, Luxembourg and France) 8. Solving client owning dedicated servers various server issues; (server reboots, server custom configurations, litespeed webserver installations, database installations etc.) 9. Deploying of software watchdog to 60 Linux servers running CentOS Linux (to induce server auto reboots in case of server failure) 10. General server audit and fixing various network issues, caused by faulty routers and switches and improper configured DNS servers, changes to general server architecture's way of dealing with DNS requests. 11. Making sure all company servers are working correctly via Nagios and Zabbix server monitoring systems, e.g. (Configuration of Nagios agents on newly installed GNU/Linux servers to report on Nagios Core server. Mobile: +359889085362 Georgi Dimitrov Georgiev Mail: [email protected] 12. Solving Cpanel various user related problems 13. End client support via a WHMCS ticketing system 14. Solving Windows 2003, Windows 2000 and Windows 2008 various problems (most of the Windows were running inside client Virtual Private Servers) 15. Using Cpanel and WHMCS to suspend abusive users (running hacker tools, ssh brute forcer scripts, DoS scripts, hosting malware etc.) 16. Maintaince of MySQL servers (efficiency optimizations) to improve end user website performance, sql table repairs etc, sql maintenance tasks 17. Work with SolusVM Virtual Server Control panel to manage VPS clients 18. Periodic server maintance tasks, traceroute, pings etc. to track and solve various network issues 19. Server remote reboots, and critical server recovery and remote OS installs via IPKVM and IPMI 20. Maintenance of Squid based Proxy servers 21. Solving various client issues of Rutorrent and Fluxtorrent In my work conditions it was required for me to work with the following Operating Systems: 1. Redhat Linux 2. RHEL 3. CentOS 4. Debian GNU/Linux, 5. Slackware Linux 6. Fedora Linux 7. CloudLinux OS 8. Ubuntu Linux 9. SuSE Linux 10. Gentoo Linux Mobile: +359889085362 Georgi Dimitrov Georgiev Mail: [email protected] 11. FreeBSD 12. Windows 98 13. Windows XP (Pro/Home Edition) 14. Windows Vista (Pro/Home Edition) 15. Windows 2007 In my work environment I had to work with IBM xSeries 345, Dell PowerEdge servers As a hobbyist I have experience with the Following Operating systems: 1. DR-DOS 7.0 2. MS-DOS 3. MS Windows 3.11 4. Menuet OS 5. Puppy Linux 6. BackTrack Linux 7. Knoppix 8. Whoopix 9. NetBSD 10. OpenBSD 11. PC BSD 12. DesktopBSD 13. Trinity CD Rescue Kit 14. OpenVMS Skills: Mobile: +359889085362 Georgi Dimitrov Georgiev Mail: [email protected] My primary strenghts are into Computer Security, Networking and Bash scripting. I have decent knowledge (intermediate level) in the following Languages: Basic, Bordland Pascal, C, Bash, Perl, PHP I have basic knowledge on: (Python, Ruby, C++, Fortran) I ran an independant Security Project (Pc-Freak) with the aim of security development and free software pupularization / distribution. I'm running a personal blog dedicated to help people solve various basic and intermediate system administration tasks. I have good working experience with the following Services and Technologies. 1. Building and maintenanance of Network Gateways, Routers (NAT, Masquerade), tc (traffic control), qdiscs, iproute2 2. Work with Switches, Wireless Routers (3Com, LinkSys, CNet) and wiring small and middle sized networks. 3. Building and maintenance of Samba Servers 4. Building and maintenance of (middle sized): * Qmail servers with POP3/POP3s services (vpopmail), courier IMAP/IMAPs, ClamAV, RBL, Pyzor, Razor, DCC, Bayesian filters, DomainKeys. * Tuning Qmail servers for performance * SpamAssassin (writing custom spam catc1h rules), qmailscanner. (My duties in Design.BG included maintenance of 6 server running qmail) * Postfix servers (I was taking care of 3 postfix servers at Design.BG) * Sendmail servers (Have installed and configured few sendmail servers for customers) * Exim 5. Isoqlog, Qmailalizer, Qmailadmin, VQadmin, Qmailmrtg, Qsstats ( installation and configuration ) 6. Sqwebmail, Horde, Squirrelmail ( installation, Maintenance and configuration ) 7. Apache (13.x, 2.0,x, 2.2.x), PHP + Eaccelerator (4.x, 5.x) Webserver building, installation, Mobile: +359889085362 Georgi Dimitrov Georgiev Mail: [email protected] configuration, performance optimization 8. Webalizer, Awstats ( Installation, configuration and maintenance) 9. Squid Proxy Server, Privoxy and tinyproxy installation, maintenance and configration, transparent proxy, ACLs etc. 10. Firewall configuration and maintenance: Iptables, OpenBSD PF 11. MySQL ( installation, maintenance, configuration, optimization for performance ), mysqladmin 12. Bind DNS (Configuration and maintenance of our three company Internet DNS Resolve serves, also the configuration and maintenance of local caching bind servers. 13. djbdns (Installation, Configuration and maintenance) 14. Frequently Used Bash and perl shell scripting for system maintenance and creating MySQL and Data backups on Regular basis 15. Tweakening Different Linux servers for performance 16. Proftpd, vsftp, wu-ftp (Installation Configuration and Maintenance) 17. Linux Jailkit, FreeBSD Jail creation and configuration 18. NTP (Maintenance and configuration of time servers) 19. Good Knowledge on Linux, FreeBSD CRON 20. Installation configuration and maintenance of Windows XP Desktop machines 21. Snort, tripwire and others program,tools which tighten security of a server and a network. 22 Good knowledge on w3c HTML/css and web page creation, HTTP webserver protocol 23.