Andrii V.

System Administration * Administration of High End Servers such as Sun Microsystems E25K and E6900; * Administration of Enterprise level Servers such as IBM Blades Center; * Administration of Linux, Solaris and AIX systems; * System Troubleshooting & Debugging; * Network Management (WAN’s and LAN’s); * Disaster Recovery (Bare Metal Recoveries – BMR); * Software installation & configuration; * Directory services such as RedHat Directory or OpenLDAP; * Backup plan & implementation; * Php/Perl/Shell/Bash System scripting services; * Performance tuning; * Log management; * Machines and services monitoring. SAN and Storage * Planning, building and managing SAN; * Setup and configuration of Brocade switches and disk arrays. Security & Firewalls * Security audition, update and hardening * Linux router firewall design/configuration * Security alert and upgrade management * Disaster Recovery Application Support & Management * Deployment, configuration (remote deployment set of servers with Red Hat Satellite and IBM Director); * Managing OS parameters, kernel tuning, patches installation; * Routing management with BGP, static routing, policy routing(zebra, quagga, iproute2); * IP - multipathing configuration; * DNS server configuring and support; * DHCP server configuring and support; * Mail system configuring, support, spam protection (postfix, popa3d, openwebmail, cyrus-imapd, dovecot, clamav, spamassassin); * Squid proxy server configuring and support, load balancing, traffic filtering; * Samba server configuring and support (Unix and Windows systems integration, DC); * Tunnel building (pptpd, vtund, ipsec, xl2tpd, ppp over ssh); * Building of the monitoring system (MRTG, RRDTool, Sarg, Webalizer, Nagios,SNMP); * Web server configuring and support (Virtual hosts,HTTPS,clustering); * FTP server configuring and support (wu-ftp,vsftpd, proftpd); * SSH server configuring and support (OpenSSH); * Application server deployment and support (Resin, JBoss); * Data Base administration (MySQL, PostgreSQL); * Radius (FreeRadius) configuring and support, integration. * Data backup (HP Data Protector, Fsbackup); * File systems encryption (LUKS, dm-crypt); * File systems manage (Veritas Storage Foundations, LVM,SVM, RAID). Our technicians have certificates of the following vendors and certification centers: * RedHat; * IBM; * Brocade; * Hewlett-Packard; * Oracle; * Microsoft; * Sun Microsystems; * Symantec; * and Brainbench.