Linux System Administrator

-Linux System Administration Redhat, CentOS & Ubuntu Servers with distributed releases.
-Linux Servers security compliance and hardening -Monitoring Zabbix, Nagios -Docker test & practises

-Redhat & CentOS Release 6.x Linux Administration over 150 Hosts Virtual & Physical In Two Datacenter & Field -Java application server JBoss Management -Monitoring Nagios & Check_MK -Reverse proxy management with Bluecoat & Nginx Server -Puppet Configuration management, SVN, OpernLDAP -Netbackup, VMWARE

Back End Support - Level2 Support for Alcatel Fixed Access Network Product Family -Multicasting, Layer2/Layer2 Networking Front End Support - Local Operators Level1, Level2 Support, -Customer Engineering, Field operations as behalf of customer -OSS Tools Support, JBoss/ (Sun Solaris / Red Hat Linux) -OSS Tool development / Shell/Python Scripting

Network Applications Management On distributed linux platforms DNS - Operator-Scaled DNS Planning/Integration/Management Operations; DNS- Level & Network-Level Redundant Authoritative & Recursive DNS Service DHCP - Operator-Scaled DHCP Integration/Management Operations; Phsical&Geographical Redundant DHCP&Pool Management FTP - Maintenance/Tunning of FTP Servers Dedicated for 2G/3G Performance Tests Trouble-shooting/Analysis for Performance Issues HTTP - Test & Installation of Web-Based SpeedTest Server (OOKLA) running with apache deamon DPI - Sandvine PTS Management, URL Filtering URL Filtering Management & Developing Automation Tolls CGN - Carrier Grade NAT with Multi-Vendor Infrustracture Management TACACS - TACACS with Web GUI / Redhat 5 Management / Maintenance Radius - Freeradius with Web GUI / Redhat 5 Regulative (Lawfull) Operations -DNS Forwarding - Lawfull Enforced Forwarding -IP Blocking - Traffic Blocking -URL Filtering - Content Filtering Linux/Unix System Administration -Administration of only Linux System without the application, mostly RHEL/CentOS and additional distributions like Ubuntu/Debian, FreeBSD, Solaris etc.
-All maintenance operations, monitoring and backup.
-MultiPlatform; Physical systems (HP, SUN) Virtual Systems (WMVARE, KVM) and cloud systems (Amazon Cloud) -Monitoring with Cacti and Self-Developed tools Microsoft System Administration -Windows 2012 Server with IIS services Database / Application Server -Oracle Database Application management / Redhat & Solaris -WebLogic / Redhat -SQL & PL/SQL language

Nortel / Cisco / HP Network Deployment & Operation Linux/Unix System Administration -SUSE LinuxEnterprise Server 10 / 11 -Novell-Netware/Sun Solaris -Cacti and Magios based monitoring Microsoft System Administration -Windows 2003/2007 Server with Active Directory Database / Application Server -MSSQL Database Application management / Microsoft Server 2007 -Oracle Database Application management / SUSE Linux -WebLogic / SUSE Linux Endpoint Security Management Deployment/Operation (Symantec) Internet Proxy Management (squid) Reverse (Web) Proxy Management (Novell I-Chain) Business Continuity & Disaster Recovery Network Security, Traffic Monitoring Virtualization Planning/Deployment/Migration/Operation Help-Desk Team-Leading Projects DNS Consolidation & Migration (Superonline) Bluecat Networks Linux Appliance Servers with standard bind daemon Planning & Deployment & Operation of DNS Infrastructure of 2 Billion Recursion Customer Over 1 Billion Authoritative Record DHCP (Superonline) Bluecat Networks Linux Appliance Servers with standard dhcpd daemon Deployment & Operation of DHCP Infrastructure scaled for Billion IPTV Customer OS Based cluster & Active-Active Geographical DHCP Redundancy FTP (Superonline) Red Hat Linux Servers with standard vsftpd daemon Operation of 4 ftp servers Tuning for speed-test result improvement Network Re-Organisation (Superonline) Public IP using servers moved to private IP-Blocks Re-planning of security policy, access analytics and restriction Business Continuity (Superonline / Şişecam) High-Availability, Geographical-Redundancy, Operational-Redundancy & Availability for Disaster-Recovery Proxy Re-Engineering (Şişecam) Software (squid) update and OS (SUSE Linux) standardization of 13 GeographicallyDistributed internet proxy.
Authentication and authorization method upgraded from file based IP-list to LDAP-Based Servers included replica of related LDAP partition for performance tuning Centralized management and logging Single central uplink (lease-line) added second local uplink (xDSL) Network Security & Traffic Analytics (Şişecam) IBM Proventia Anomally Dedection System Virtualization (Şişecam) XEN on SUSE Linux Local and Pool Management Moving Over 100 Servers with Distributed OS (Linux, Windows, Novell) Physical-to-Virtual Resource-Analytics and Migration (Cisco) Physical-to-OS Network Entegration Planning through Level2, Leve3 protocols Storage Consolidation (Şişecam) Centralized storage entegration (50 TB HP 24000 Series) Local xDSL Project (Şişecam) Internet Service Providing for 250 Residential over existing cupper infrastructure -Management of DSLAM Bridges & 250 ADSL Modems -Management of Soft-LoadBalancer; nginx/FreeBSD -Management of 3 Proxy Server Network Re-Construction (Şişecam) Level1 - Level3 Nortel Based Network Infrastructure of 3 Plants Re-plannned & ReEstablished.
Level 2 devices added and Level 3 devices upgraded.
Courses & Certificates ITIL Foundation (Turkcell) F5 Load Balancer (BT Eğitim) / Load Balancing & NAT Abilities Bluecat Networks DNS & DHCP Linux Based DNS, DHCP, IPAM Appliance Netapp Storage Systems (Datacore Bilgi Teknolojileri) HP STORAGE XP DISC ARRAY SYSTEMS (HP Educational Services - Turkey) CCNA (BT Eğitim)