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@ -6,187 +6,224 @@ title: Resume
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this! ]</span></h3>
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<div itemscope itemtype="http://schema.org/Person">
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<p>I am <span class="b" itemprop="name">Gergely Polonkai</span>
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(sometimes referred to
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as <span itemprop="nickname">W00d5t0ck</span>
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or <span itemprop="nickname">Polesz</span>), a <span class="b"
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itemprop="jobTitle">software developer, systems engineer and
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administrator</span>. I was born on <span class="b"
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itemprop="birthDate">7 March, 1983</span> in Budapest, Hungary. I
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spent my life moving here-and-there in the country, and finally
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settled in <span class="b" itemprop="address" itemscope
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itemtype="http://schema.org/Address">
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<span itemprop="locality">Budapest</span></span>. Although
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I have already found my mate for life, I
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am <span class="b">single</span> yet (living in a common-law
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marriage), being the proud father of a son and a daughter.</p>
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<p>You can reach me on <span class="b"
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itemprop="email">gergely@polonkai.eu</span>, or by phone
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on <span class="b" itemprop="telephone">+36 (30)
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7375-706</span>. I fluently speak and
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write <span class="b">English</span>
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and <span class="b">Hungarian</span>.</p>
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<p>I have <span class="b">graduated in 2001</span>
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from <span class="i">Táncsics Mihály Szakközépiskola, Szakiskola
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és Kollégium</span>, an architecture high school based in
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Veszprém, Hungary. There, I learned
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about <span class="b">electricity and elevators</span>, while
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getting my feet wet in the area of IT systems
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engineering. Together with some teachers, we
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developed <span class="b keyword" title="network building">the IT
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infrastructure of the school, building it from scratch</span>
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with <span class="b keyword">Windows XP</span> based clients,
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and <span class="b keyword">Debian GNU/Linux</span> servers
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with <span class="b keyword">Squid proxy</span>, an <span class="b
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|
keyword">Apache httpd</span> web server, <span class="b
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keyword">Exim</span>+<span class="b keyword">Courier IMAP</span>
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based internal mailing and a <span class="b keyword">Samba file
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server</span>. Meanwhile, I have created the school’s
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first <span class="b keyword" title="web development">web
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page</span> using <span class="b keyword">Perl CGI</span>, and
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later it’s replacement in <span class="b keyword">PHP</span>.
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Although I did that as a student, I consider
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it my first job. You can contact <span class="b">Imre
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Pataki</span> at +36 (20) 970-5830 if you need more
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information.</p>
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<p>My first contract was made in <span class="b">2002</span>
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with <span class="b">GaTeS Group Kft.</span>, a Budapest
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based <span class="b">ISP</span> that served Internet connection
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to a large warren. I have mastered Linux based <span class="b
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keyword" title="firewalls">firewalling and routing</span> there
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using <span class="b keyword noupper">iptables</span>,
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and <span class="b keyword" title="QoS">tc for QoS</span>. I have
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also created a <span class="b">web page</span> for the company
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using <span class="b keyword">PHP</span> and <span class="b
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keyword" title="MySQL database development">MySQL</span>. The
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company went through several merges since then. My only contact
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was Ákos Szabó, whose phone number is not reachable any more.</p>
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<p>After that, I contracted with <span class="b">Webvilág
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Kft.</span> in <span class="b">2004</span>. It was
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a <span class="b">web development company</span>, where I was in
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the role of both a <span class="b keyword" title="web
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development">web developer</span> and a <span class="b keyword"
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title="Systems administration">systems administrator</span>. I
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have mastered <span class="b keyword">PHP</span> there, together
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with <span class="b keyword">MySQL administration</span>. I also
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built a small <span class="b keyword"
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title="routers">router</span>/<span class="b keyword"
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title="firewalls">firewall</span> out of a PC for office
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needs. Although the company has changed its name to Fejlesztők
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Háza Kft., you may still contact <span class="b">Péter Bali</span>
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at +36 (70) 318-4050.</p>
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<p>My next job came in <span class="b">2006</span>, when I
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contracted with <span class="b">eWorldCom Kft.</span>, a
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small <span class="b">VoIP company</span>, developing a call
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center software based on <span class="b
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keyword">Asterisk</span>. My job was to create a small base system
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for this software, while managing the old, Ubuntu based ones. For
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the new version we targeted <span class="b keyword">Gentoo
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Linux</span> because of its possible small size, and performance
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reasons. The company since then merged with Virtual Call Center
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Kft. You may reach my ex-bosses (Tamás Jalsovszky and Szabolcs
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Tóth) there, altough I don’t know any of their new contacts.</p>
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<p>The job that followed was with <span class="b">Lufthansa
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Systems Hungary</span> in <span class="b">2007</span>, where I
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became the member of a large team supporting and administering
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several thousand servers, mostly based on <span class="b
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keyword">Red Hat Enterprise Linux</span> and <span class="b
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keyword">SUSE Linux Enterprise Server</span>. There I mastered
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cluster technologies (<span class="b keyword">Heartbeat 2</span>
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and <span class="b keyword">Red Hat
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Cluster</span>), <span class="b
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keyword">SAN</span>, <span class="b keyword noupper">iSCSI</span>
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and <span class="b keyword">NFS</span> based
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storages, <span class="b keyword">Apache httpd</span>
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and <span class="b keyword">Tomcat</span> web servers,
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administration of <span class="b keyword" title="MySQL
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administration">MySQL</span> and <span class="b keyword"
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title="Oracle 10g Database Administration">Oracle 10g
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Database</span>s, <span class="b keyword">Bacula</span> based
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backup, <span class="b keyword">Windows 2003 Server</span>
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and <span class="b keyword">Windows Server 2008</span> (both
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standalone and cluster) with <span class="b keyword">Active
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Directory</span>, <span class="b keyword">Group
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Policy</span>, <span class="b keyword">Microsoft Exchange Server
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2005</span> and <span class="b keyword">Microsoft SQL Server
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2005</span>, <span class="b keyword">Xen Open Source</span>
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virtualization, <span class="b keyword">Citrix XenServer</span>
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and <span class="b keyword" title="Citrix
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XenApp">XenApp</span>, <span class="b keyword">VMware ESXi</span>
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and <span class="b keyword" title="VMware
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vSphere">vSphere</span>, <span class="b keyword">Nagios</span>
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monitoring (and <span class="b keyword">monitoring</span> in
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general), and last, but not least, <span class="b keyword">Linux
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hardening</span> (<span class="b keyword">SELinux</span>,
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firewalls of different kinds, fighting <span class="b
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|
keyword">application security</span> issues). My boss
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was <span class="b">László Kiss-Kalló</span>, who can be reached
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on +36 (30) 429-9483.</p>
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<p>All this knowledge came in very handy, when I went
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to <span class="b">Brokernet Group Zrt.</span>
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in <span class="b">2010</span>. The IT infrastructure was in a
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very bad shape there, and our job was to rebuild most of it from
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|
scratch. We utilized <span class="b keyword">Debian
|
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|
|
|
GNU/Linux</span> servers (both standalone and <span class="b
|
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|
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|
keyword">Heartbeat 2</span> clusters), <span class="b
|
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|
|
|
keyword">Apache httpd</span> web servers, <span class="b
|
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|
|
|
keyword">Exim</span>+<span class="b keyword">Courier IMAP</span>
|
|
|
|
|
for mailing, <span class="b keyword">Bacula</span> based
|
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|
|
|
backup, <span class="b keyword" title="MySQL
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|
|
administration">MySQL</span> and <span class="b keyword"
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|
title="PostgreSQL administration">PostgreSQL</span> database
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servers, <span class="b">Oracle Database</span>s
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(both <span class="keyword" title="Oracle 10g Database
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|
|
Administration">10g</span> and <span class="keyword" title="Oracle
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11g Database
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|
Administration">11g</span>), <span class="b">Microsoft SQL
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Server</span>s (both <span class="keyword" title="Microsoft SQL
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|
|
Server 2005">2005</span> and <span class="keyword"
|
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|
title="Microsoft SQL Server 2008">2008</span>), <span class="b
|
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|
|
keyword">Windows 2003 Server</span> and <span class="b
|
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|
|
keyword">Windows Server 2008</span> (both standalone and
|
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|
|
|
clusters), <span class="b keyword">Active
|
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|
|
Directory</span>, <span class="b keyword">Group Policy</span>,
|
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|
|
centralised <span class="b keyword">ESET NOD32
|
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|
|
anti-virus</span>, <span class="b keyword">Windows cluster</span>
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|
based <span class="b keyword" title="Microsoft File Server">file
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|
server with AD backend</span>, <span class="b
|
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|
keyword">WSUS</span>, <span class="b keyword">OTRS::ITSM</span>
|
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|
helpdesk, <span class="b keyword">Zabbix</span> based monitoring,
|
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|
|
|
virtualization with <span class="b keyword">Citrix
|
|
|
|
|
XenServer</span>, IT security solutions with <span class="b
|
|
|
|
|
keyword">SonicWall</span> appliances, <span class="b
|
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|
|
|
keyword">SELinux</span>, <span class="b keyword">Snort</span>
|
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|
and <span class="b keyword
|
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|
noupper">iptables</span>, <span class="b keyword">Perl</span> for
|
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|
|
system administration scripts, and <span class="b
|
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|
|
|
keyword">PHP</span> and the <span class="b keyword">Symfony
|
|
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|
|
2</span> framework for internal web development. Although much has
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|
|
changed in this list since then, it was my best experience so
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far. You can contact <span class="b">Attila Balogh</span> on +36
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(30) 924-8179.</p>
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|
<p>Since I left the company in <span class="b">2013</span>, I am
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working as a <span class="b">freelancer developer</span> and
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a <span class="b">systems engineer</span> for
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a <span class="b">startup network monitoring company</span>. Here
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we are building a help desk system using open source products
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|
like <span class="b keyword">OTRS::ITSM</span>, <span class="b
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|
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|
keyword">OpenLDAP</span>, and <span class="b
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|
keyword">Zabbix</span>.</p>
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<p>In my <span class="b">free time</span>, I wander in forests,
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take pictures, and sometimes manipulate them with
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the <span class="b keyword">GIMP</span>. Sometimes I write short
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fantasy or sci-fi novels using <span class="b
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|
keyword">LibreOffice</span>. I am also developing some software
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in <span class="b keyword">C</span>, whose source code is managed
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with <span class="b keyword">Git</span>. When I’m not in the mood
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for writing, I go and check out the news on several technical
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areas, mostly IT and engineering, or give a try to a new
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programming language in the name of “why not?”. Currently I’m
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experimenting with Python.</p>
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<p>As an employee I am looking for firms where can I use and
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develop my skills, while getting financial stability through an
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interesting job.</p>
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|
<p>
|
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|
I am <span class="b" itemprop="name">Gergely Polonkai</span>
|
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|
|
|
(sometimes referred to
|
|
|
|
|
as <span itemprop="nickname">W00d5t0ck</span>
|
|
|
|
|
or <span itemprop="nickname">Polesz</span>), a <span class="b"
|
|
|
|
|
itemprop="jobTitle">software developer, systems engineer and
|
|
|
|
|
administrator</span>. I was born on <span class="b"
|
|
|
|
|
itemprop="birthDate">7 March, 1983</span> in Budapest,
|
|
|
|
|
Hungary. I spent my life moving here-and-there in the country,
|
|
|
|
|
and finally settled in <span class="b" itemprop="address"
|
|
|
|
|
itemscope itemtype="http://schema.org/Address">
|
|
|
|
|
<span itemprop="locality">Budapest</span></span>. Although I
|
|
|
|
|
have already found my mate for life, I
|
|
|
|
|
am <span class="b">single</span> yet (living in a common-law
|
|
|
|
|
marriage), being the proud father of a son and a daughter.
|
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|
|
|
</p>
|
|
|
|
|
|
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|
|
<p>
|
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|
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|
You can reach me on
|
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|
|
|
<span class="b" itemprop="email">gergely@polonkai.eu</span>,
|
|
|
|
|
or by phone on <span class="b" itemprop="telephone">+36 (30)
|
|
|
|
|
7375-706</span>. I fluently speak and
|
|
|
|
|
write <span class="b">English</span>
|
|
|
|
|
and <span class="b">Hungarian</span>.
|
|
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<p>
|
|
|
|
|
I have <span class="b">graduated in 2001</span>
|
|
|
|
|
from <span class="i">Táncsics Mihály Szakközépiskola,
|
|
|
|
|
Szakiskola és Kollégium</span>, an architecture high school
|
|
|
|
|
based in Veszprém, Hungary. There, I learned
|
|
|
|
|
about <span class="b">electricity and elevators</span>, while
|
|
|
|
|
getting my feet wet in the area of IT systems
|
|
|
|
|
engineering. Together with some teachers, we
|
|
|
|
|
developed <span class="b keyword" title="network building">the
|
|
|
|
|
IT infrastructure of the school, building it from
|
|
|
|
|
scratch</span> with <span class="b keyword">Windows XP</span>
|
|
|
|
|
based clients, and <span class="b keyword">Debian
|
|
|
|
|
GNU/Linux</span> servers with <span class="b keyword">Squid
|
|
|
|
|
proxy</span>, an <span class="b keyword">Apache httpd</span>
|
|
|
|
|
web server, <span class="b keyword">Exim</span>+<span class="b
|
|
|
|
|
keyword">Courier IMAP</span> based internal mailing and
|
|
|
|
|
a <span class="b keyword">Samba file server</span>. Meanwhile,
|
|
|
|
|
I have created the school’s first <span class="b keyword"
|
|
|
|
|
title="web development">web page</span> using <span class="b
|
|
|
|
|
keyword">Perl CGI</span>, and later it’s replacement
|
|
|
|
|
in <span class="b keyword">PHP</span>. Although I did that as
|
|
|
|
|
a student, I consider it my first job.
|
|
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<p>
|
|
|
|
|
My first contract was made in <span class="b">2002</span> with
|
|
|
|
|
a small Budapest based ISP that served Internet connection to
|
|
|
|
|
a large warren. I have mastered Linux based <span class="b
|
|
|
|
|
keyword" title="firewalls">firewalling and routing</span>
|
|
|
|
|
there using <span class="b keyword noupper">iptables</span>,
|
|
|
|
|
and <span class="b keyword" title="QoS">tc for QoS</span>. I
|
|
|
|
|
have also created a <span class="b">web page</span> for the
|
|
|
|
|
company using <span class="b keyword">PHP</span>
|
|
|
|
|
and <span class="b keyword" title="MySQL database
|
|
|
|
|
development">MySQL</span>.
|
|
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<p>
|
|
|
|
|
After that I contracted with a small <span class="b">web
|
|
|
|
|
development company</span> in <span class="b">2004</span>.
|
|
|
|
|
Here I was in the role of both a <span class="b keyword"
|
|
|
|
|
title="web development">web developer</span> and
|
|
|
|
|
a <span class="b keyword" title="Systems
|
|
|
|
|
administration">systems administrator</span>. I have
|
|
|
|
|
mastered <span class="b keyword">PHP</span> there, together
|
|
|
|
|
with <span class="b keyword">MySQL administration</span>. I
|
|
|
|
|
also built a small <span class="b keyword"
|
|
|
|
|
title="routers">router</span>/<span class="b keyword"
|
|
|
|
|
title="firewalls">firewall</span> out of a PC for office
|
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needs.
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</p>
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<p>
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My next job came in <span class="b">2006</span>, when I
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contracted with a small <span class="b">VoIP company</span>
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developing a call center software based on <span class="b
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|
keyword">Asterisk</span>. My job here was to create a base
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|
system for this software as small as possible, while managing
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the old, Ubuntu based ones. For the new version we
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|
targeted <span class="b keyword">Gentoo Linux</span> because
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of its possible small size, and performance reasons.
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</p>
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<p>
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The job that followed was with a world-wide IT services
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company in <span class="b">2007</span>, where I became a
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member of a large team supporting and administering several
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thousand servers, mostly based on <span class="b keyword">Red
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Hat Enterprise Linux</span> and <span class="b keyword">SUSE
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Linux Enterprise Server</span>. There I mastered cluster
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|
technologies (both <span class="b keyword">Heartbeat 2</span>
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and <span class="b keyword">Red Hat
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|
Cluster</span>), <span class="b
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|
keyword">SAN</span>, <span class="b keyword
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|
noupper">iSCSI</span> and <span class="b keyword">NFS</span>
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|
based storages, <span class="b keyword">Apache httpd</span>
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|
and <span class="b keyword">Tomcat</span> web servers,
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|
administration of <span class="b keyword" title="MySQL
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|
|
administration">MySQL</span> and <span class="b keyword"
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|
|
title="Oracle 10g Database Administration">Oracle 10g
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|
Database</span>s, <span class="b keyword">Bacula</span> based
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|
backup, <span class="b keyword">Windows 2003 Server</span>
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|
and <span class="b keyword">Windows Server 2008</span> (both
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|
standalone and cluster) with <span class="b keyword">Active
|
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|
Directory</span>, <span class="b keyword">Group
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|
Policy</span>, <span class="b keyword">Microsoft Exchange
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|
Server 2005</span> and <span class="b keyword">Microsoft SQL
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|
Server 2005</span>, <span class="b keyword">Xen Open
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|
Source</span> virtualization, <span class="b keyword">Citrix
|
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|
XenServer</span> and <span class="b keyword" title="Citrix
|
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|
XenApp">XenApp</span>, <span class="b keyword">VMware
|
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|
ESXi</span> and <span class="b keyword" title="VMware
|
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|
|
vSphere">vSphere</span>, <span class="b keyword">Nagios</span>
|
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|
|
monitoring (and <span class="b keyword">monitoring</span> in
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|
|
general), and last, but not least, <span class="b
|
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|
|
|
keyword">Linux hardening</span> (<span class="b
|
|
|
|
|
keyword">SELinux</span>, firewalls of different kinds,
|
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|
|
|
fighting <span class="b keyword">application security</span>
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|
|
|
|
issues).
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|
</p>
|
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|
<p>
|
|
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|
|
All this knowledge came in very handy, when I went to a
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|
|
|
leading Hungarian financial company
|
|
|
|
|
in <span class="b">2010</span>. The IT infrastructure was in a
|
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|
|
|
very bad shape there, and my job was to rebuild the Linux
|
|
|
|
|
parts from scratch. We utilized <span class="b keyword">Debian
|
|
|
|
|
GNU/Linux</span> servers (both standalone and <span class="b
|
|
|
|
|
keyword">Heartbeat 2</span> clusters), <span class="b
|
|
|
|
|
keyword">Apache httpd</span> web servers, <span class="b
|
|
|
|
|
keyword">Exim</span>+<span class="b keyword">Courier
|
|
|
|
|
IMAP</span> for mailing, <span class="b keyword">Bacula</span>
|
|
|
|
|
based backup, <span class="b keyword" title="MySQL
|
|
|
|
|
administration">MySQL</span> and <span class="b keyword"
|
|
|
|
|
title="PostgreSQL administration">PostgreSQL</span> database
|
|
|
|
|
servers, <span class="b">Oracle Database</span>s
|
|
|
|
|
(both <span class="keyword" title="Oracle 10g Database
|
|
|
|
|
Administration">10g</span> and <span class="keyword"
|
|
|
|
|
title="Oracle 11g Database
|
|
|
|
|
Administration">11g</span>), <span class="b">Microsoft SQL
|
|
|
|
|
Server</span>s (both <span class="keyword" title="Microsoft
|
|
|
|
|
SQL Server 2005">2005</span> and <span class="keyword"
|
|
|
|
|
title="Microsoft SQL Server 2008">2008</span>), <span class="b
|
|
|
|
|
keyword">Windows 2003 Server</span> and <span class="b
|
|
|
|
|
keyword">Windows Server 2008</span> (both standalone and
|
|
|
|
|
clusters), <span class="b keyword">Active
|
|
|
|
|
Directory</span>, <span class="b keyword">Group Policy</span>,
|
|
|
|
|
centralised <span class="b keyword">ESET NOD32
|
|
|
|
|
anti-virus</span>, <span class="b keyword">Windows
|
|
|
|
|
cluster</span> based <span class="b keyword" title="Microsoft
|
|
|
|
|
File Server">file server with AD
|
|
|
|
|
backend</span>, <span class="b
|
|
|
|
|
keyword">WSUS</span>, <span class="b
|
|
|
|
|
keyword">OTRS::ITSM</span> helpdesk, <span class="b
|
|
|
|
|
keyword">Zabbix</span> based monitoring, virtualization
|
|
|
|
|
with <span class="b keyword">Citrix XenServer</span>, IT
|
|
|
|
|
security solutions with <span class="b
|
|
|
|
|
keyword">SonicWall</span> appliances, <span class="b
|
|
|
|
|
keyword">SELinux</span>, <span class="b keyword">Snort</span>
|
|
|
|
|
and <span class="b keyword
|
|
|
|
|
noupper">iptables</span>, <span class="b keyword">Perl</span>
|
|
|
|
|
for system administration scripts, and <span class="b
|
|
|
|
|
keyword">PHP</span> and the <span class="b keyword">Symfony
|
|
|
|
|
2</span> framework for internal web development. Although much
|
|
|
|
|
has changed in this list since then, it was my best and most
|
|
|
|
|
challenging experience so far.
|
|
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<p>
|
|
|
|
|
I left that company in <span class="b">2013</span> to work as
|
|
|
|
|
a <span class="b">freelancer developer</span> and
|
|
|
|
|
a <span class="b">systems engineer</span> for
|
|
|
|
|
a <span class="b">startup network monitoring
|
|
|
|
|
company</span>. Here we are building a help desk system using
|
|
|
|
|
open source products like <span class="b
|
|
|
|
|
keyword">OTRS::ITSM</span>, <span class="b
|
|
|
|
|
keyword">OpenLDAP</span>, and <span class="b
|
|
|
|
|
keyword">Zabbix</span>. I also dug my nose into <span class="b
|
|
|
|
|
keyword">Docsis</span> based ISP networks and <span class="b
|
|
|
|
|
keyword">SIP</span>-based telephony.
|
|
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<p>
|
|
|
|
|
Unfortunately our main employer went bankrupt
|
|
|
|
|
in <span class="b">2014</span>, so after a few months of
|
|
|
|
|
freelancing I got a new job at the R&D division of a
|
|
|
|
|
leading telecommunications company. My current role is pretty
|
|
|
|
|
close to DevOps. Nowadays I’m developing a <span class="b
|
|
|
|
|
keyword">Django</span>-based internal web application, while
|
|
|
|
|
maintaining internal scripts written in both <span class="b
|
|
|
|
|
keyword">Perl</span>, <span class="b
|
|
|
|
|
keyword">Python</span>, <span class="b keyword">bash</span>
|
|
|
|
|
and
|
|
|
|
|
<span class="b keyword">tcsh</span> or trying to migrate the
|
|
|
|
|
internal source code repositories from <span class="b
|
|
|
|
|
keyword">ClearCase</span> to <span class="b
|
|
|
|
|
keyword">Git</span>.
|
|
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<p>
|
|
|
|
|
In my <span class="b">free time</span>, I wander in forests,
|
|
|
|
|
take pictures, and sometimes manipulate them with
|
|
|
|
|
the <span class="b keyword">GIMP</span>. Sometimes
|
|
|
|
|
I <span class="b">write</span> short fantasy or sci-fi novels
|
|
|
|
|
using <span class="b keyword">LibreOffice</span>. I am also
|
|
|
|
|
developing some software in <span class="b keyword">C</span>,
|
|
|
|
|
whose source code is managed with <span class="b
|
|
|
|
|
keyword">Git</span>. When I’m not in the mood for writing, I
|
|
|
|
|
go and check out the news on several technical areas, mostly
|
|
|
|
|
IT and engineering, or give a try to a new programming
|
|
|
|
|
language in the name of “why not?”.
|
|
|
|
|
</p>
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
<div id="keywords"><span id="keywords-close"></span><span id="keywords-list"></span></div>
|
|
|
|
|
|
