Halil Cevik

Working remotely with Switzerland team and performing Linux System Administration approaches. - Making Clinerion softwares up and running 7/24 on about 300 servers (including VMs). - Troubleshooting of tickets and system messages ASAP. - Troubleshooting of Tomcat, Mongodb and Postgresql. - Log, memory and disk management. - Installation and testing processes of new sites. - Software upgrade and testing processes. - Writing Bash scripts for various purposes.

- Network management. Solving system and network failures ASAP using event logs, memory dumps etc. - ( CentOS 7 & CentOS 8 ) Systemd management using systemctl command. Writing systemd services for different usages. - Integrated Dell Remote Access Controller ( iDRAC ) 6/7/8 and 9 management using racadm command (with or without Ansible playbooks). - BIOS Configuration with iDRAC - CI/CD using ANSIBLE.

- Creating Routines & Schedules: Creating schedules of backups for Windows-Linux using computers in the directions of the customers. - Error Detection & Solving: Monitoring ongoing backups on Symantec Netbackup and EMC Avamar. Tracking & fixing errors which occur during backup processes. - Vault Operations: Transferring backed-up files into the LTO cartridges. - Operation Reports: Creating operation reports and making configurations which aim to sending reports to specific individuals autonomously.

- Working on computer networks which include topics of NAT and Bridged Connections. Assigning static IP, Gateway, Netmask and DNS values to the computers of specific networks. - Setting file permissions and log rotations by using Linux terminal. - Setting network permissions and restrictions by using SELinux and iptables. - Creating a kickstart file for CentOS7 by using VIM. - Rescuing data from a HDD which has "Bad Sector" in it by using "ddrescue" command.

Working on Folloiwng Topics: - Remote Administration: Usage of ssh, scp, sshfs, ssh-keygen, ssh-copy-id commands. Establishing connections using SSH-key. - Administration using Puppet - Virtual Machine Usage: Creating virtual machines and virtual networks by using Oracle VM VirtualBox. Using SSH for establishing connections between them. - Basic Git Knowledge

- Taking informations on Computer Networks fundamentals (OSI and TCP/IP models - DHCP - DNS). - Taking informations on SQL. -Taking informations on hardwares of computers using Windows-Linux OS. - Taking informations on individual jobs and teamwork.