3 different intranets and networks with about 1000 servers and more than 10000 users and for about 12 years;• Oracle Enterprise Linux (RAC and Weblogic App.Servers)- OS Managamanet • NFS, DNS, Debian Linux Terminal Servers (~600 server nodes and 10000+ thin clients), NTP, openLDAP,SNMP ,openstack cups,rsync etc. services managament • Nagios for Network Monitoring • Writing necessary bash and python scripts for remote backup, alerting and network monitoring • Labris Enterprise Firewall and IDS/IPS Managament • Websense, Labris Web Content Filtering• Syslog-ng for log analyze from 600+ servers to on side every day• Storage Area Network Storage And Switch Managament • Disaster Recovery for MoD• Tape and Virtual Tape Backup Library - Backup Management• MS SQL, My SQL, Postgre SQL server managamanet• Secure Shared Central Printing System for Disributed Location• Data Center cooling, energy and all the other requirements analyse and supply- Preparing Bid Spec. • Requirement Analysis, Technical and Administrative Specification Creation, Follow-up and FacilityHave experience Windows Based Domain on:• Active Directory, Hyper-V, VMWare, DNS,Antivirus, WSUS Server#TapeLibraryManagament #Redhat #Linux #Debian #Apache #Tomcat #DNS #BIND #OpenLDAP #DHCP #LTSP #PXE #NTP #TapeLibraryManagament #Redhat #Linux #Debian #Apache #Tomcat #DNS #BIND #OpenLDAP #DHCP #LTSP #PXE #NTP #Firewall #IDS/IPS #WebLogicServer #HPServer #Websense #WebContentFiltering #Nagios #SYLOG-NG #SAN #Storage #Helpdesk #Acronis #Backup #Hyper-V #VMWare #Virtualization #docker #cloud #kubernetes
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Virtualization And Cloud AdministratorRepublic Of Turkey Ministry Of National Defence Jul 2014 - Feb 2020Ankara, Türkiye* Installed and managed RHEL and DEBIAN servers on Hyper-V as clustered and performed quick migration features. * Administered containerized (DOCKER) 20+ nodes PHP and PostgreSQL instances for Help Desk application using with KUBERNETES. -
Datacenter Operations SpecialistRepublic Of Turkey Ministry Of National Defence Jul 2009 - Feb 2020Ankara, Türkiye* Performed daily hardware monitoring of HP ProLiant DL rack servers clustered HP EVA Storage, clustered Brocade SAN Switches, Tape library and reported hardware failures according to the SLA contract.* Data Center cooling, energy and all the other requirements documents was analysed, prepared and carried out by two major modernization projects in Ankara and Istanbul.
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Linux System AdministratorRepublic Of Turkey Ministry Of National Defence Sep 2007 - Feb 2020Ankara* Managed 600 linux servers (RHEL and Debian) and about 10000 thin clients distributed Turkey’s provinces.* Administered IMAP/Postfix, BIND, OpenLDAP, APACHE, NFS, PXE based LTSP, NTP,DHCP, CUPS as a system services on RHEL and Debian servers.* Performed multipath connections between Linux servers and SAN environment.* Administered Oracle EL on which runs Oracle RAC with 4 physical nodes, Oracle Weblogic with 8 nodes clustered Host Bus Adapters connecting with Brocade SAN switches, HP EVA and SAN LUNs to the Oracle srv.* Installed and managed Nagios and Syslog-NG using SNMP in datacenter and remote sides servers (approx. on 500 servers) for hardware and some critical service monitoring and log tracking.
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Backup AdministratorRepublic Of Turkey Ministry Of National Defence Jul 2009 - Jun 2015Ankara, Türkiye* Performed backups of all Linux servers to LTO cartridges and restore backup using HP Data Protector Tape Library and managed backup agents and also coded python scripts for transffering server backups disk to disk using “rsync”.* In terms of establising disaster recovery on remote side, I took part in the project of preparing technical specifications documents by analyzing all current needs, except for enterprise applications.* Tested ACRONIS Backup Server and client app. Managament in test environment.
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System Security AdministratorRepublic Of Turkey Ministry Of National Defence Sep 2007 - Jun 2015Ankara* Managed clustered enterprise firewalls based on Linux kernel by updating iptables, IDS/IPS rules and monitoring security logs.* Performed vulnerability analyses by metasploit, nmap, kalinux, wireshark, tcpdump etc., identified and performed appropriate security countermeasures.* Created offline package repository security patches for Linux servers.* Operated for about 5 years Websense Content Filtering Software on the other Windows based intranet.
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Help Desk ManagerRepublic Of Turkey Ministry Of National Defence Sep 2007 - Jun 2015Ankara, Türkiye* Modified according requirements and managed opensource GLPI Inventory and Help Desk application based on PHP and PostgreSQL.* Upgraded of the existing Gentoo based servers to debian servers in about 500 physical live servers. But lots of problem have emergened like incompatibility version of openoffice, pdf reader, thinderbird and etc. We have performed very hard troubleshooting process tracking day by day and step by step level.
Abdullah A. Education Details
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Computer Engineering -
Umraniye High SchoolHigh School
Frequently Asked Questions about Abdullah A.
What is Abdullah A.'s role at the current company?
Abdullah A.'s current role is Linux System Administrator.
What schools did Abdullah A. attend?
Abdullah A. attended Selcuk Univesity, Umraniye High School.
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