I have 8 years experience in operating GNU/Linux and BSD based servers in a wide range of environments. I have experience starting from single machine LAMP/LEMP stacks to high availability distributed systems running hundreds of virtual machines and services. My expertise (and passion) is in solving complex problems efficiently. I don't mind if it is a Wordpress hosting performance optimisation project or it is the planning and deployment of a service running on a Docker based infrastructure. I am willing to deliver a working and stable solution tailored to your needs.
Operating system experience:
- Hardened Gentoo, CentOS, Slackware, Debian/Ubuntu, CoreOS, Proxmox
- OpenBSD, FreeBSD
- Apache, nginx, lighttpd
- Postfix, Dspam, Dovecot, Amavisd, Spamassassin
- BIND, PowerDNS
- MySQL, PostgreSQL,
- MongoDB, Elasticsearch
- HAProxy, Varnish Cache
- LVM, DRBD, Ceph
- Nagios, Icinga
- FreeBSD jail
- Docker, Docker Swarm, Docker Compose, Weave, Kubernetes
- Xen, KVM
- Amazon AWS, Google Compute Engine, Linode
- Puppet, Ansible, FAI
Zrínyi Miklós National Defence University
Phd in defense electronics
NATIONAL DEFENCE UNIVERSITY
Security and defence policy expert
2003 - 2008
Plex Online Kft.
2012 - Present
I am responsible to operate and develope the company’s and it’s customers’ server infrastructure consisting of about 200 GNU/Linux and OpenBSD based servers.
2010 - 2012
I was responsible to operate and develop the company’s server infrastructure consisting of around 80 GNU/Linux based servers. The company is delivering more than half of Hungary’s online advertising content, almost 16 billion ads a month.
2008 - 2010
I'm responsible of operating our server park containing around 50 GNU/Linux based systems and a few Windows servers. We have a country wide VPN network with a dozen endpoints.
And I'm also responsible of operating our clients (mostly sister companies) networks containing around 100 workstations, mostly Windows 2000 and Windows XP based with a dozen Macs.