I have experience with Nginx (as web server, balancer, proxy and fastccgi proxy), Apache as web server and proxy, setting up php (as mod_php and fpm) and variety of php modules and runnig php , postgres, mysql and redis databases and
I have experience with Nginx (as web server, balancer, proxy and fastccgi proxy), Apache as web server and proxy, setting up php (as mod_php and fpm) and variety of php modules and runnig php , postgres, mysql and redis databases and their backup solutions, replication and quick changes in databases, openvpn, cron jobs, ssl certificates, postfix, exim, securing ssh access, iptables, optimising db and web servers (varnish, memcached, caching content, setting expirations, apc, etc), setting permissions and users etc, tunning kernel parameters, setting puppet for centralized automated server deployment, using git, svn and mercurial repositories and to setup gerrit and make deployment automation, Jenkins, setting Symfony and Composer environments, Ruby (through rubyenv or system-wide). I also know to manage dns (clear bind9 or hosted dns solutions) and cdn services (liquidweb, cloudflare). About hosting solutions I have used since now AWS, storm-on-demand, server4you, hostgator, liquidweb. I am good with different cluster setups, separate db, app, balancer and other servers, securing connections between them etc. I also know to setup network file and printer sharing between different operating systems.
I know to work with KVM, OpenVZ and VMWare virtualization. Provisioning, backup solutions, system setup, moving machines from one platform to other etc.
About VPN I have experience with OpenVPN (with or without keys, LDAP auth, etc) and with Mikrotik PPTP VPN. Also I know to work with and to setup dynamic routing, dns, dhcp, access lists, static, routing, multi wan with failover, BGP, long distance wireless links, QoS, queues etc with mikrotik systems. I am head Network and System administrator at NSWireless community network located in Novi Sad, Serbia.
I have experience with Debian, Ubuntu, Fedora, Red Hat, Centos, Arch, SUSE and other linux platforms. Complete setup and maintenance. I also have some experience with Mac OS X.
About premade systems, I can set Worpress, Joomla, Magento, Redmine etc and tune their parameters and suggest environments for best performance. About panel solutions, I know to work with Plesk, WHM, CPanel, etc, but I prefer to use servers without these panels, so I use them only if it is your wish.
I know to setup zabbix server for real time server and services monitoring, and munin for graphing.
Thank you for reading, I hope that we will have good cooperation in administrating your servers.