Active Directory System Administrator

Emily, O Alymbai ac2csq@r.postjobfree.com

Summary

* ***** ** ****** ************** in Linux/Unix and Virtualization

Supported 24x7 Production environment

Advanced partition and LVM management

Monitored system using NAGIOS, Seyren

Managed security using iptables, SELinux, Firewalld

Checked network troubleshooting with traceroute, ifconfig, netstat, ss

Managed VMs using KVM, VMware, and Apache Cloudstack

Managed services as DNS, Postfix, Dovecot, Thunderbird, FTP, HTTP, SAMBA

Automated system related tasks

Managed custom scripts for automation of Linux provisioning, backups, and monitoring

Adding hostname, ssh numbers, and IP addresses

Used R1soft and rsync for incremental backups

Customer support over ticketing system and phone

TECHNICAL SKILLS:

Operating Systems: Linux (RHEL, CentOS, and Ubuntu), Microsoft Database: MySQL, Oracle

Hardware: HP, DELL, SUN

Storage: Iscsi, SAN, NAS

Scripting: BASH Shell

Server Virtualization: VMware vSphere Hypervisor (ESXi), KVM

Cloud Computing: Apache Cloudstack

Monitoring: Nagios

Network Troubleshooting: Tcpdump, telnet, ping, netstat

Servers: Web Apache, LAMP, DNS, LDAP, Samba, SMTP, POP, IMAP, Postfix, SAN

Configuration Management: Puppet, Chef

User Administration: LDAP, NIS, Active Directory

EXPERIENCE

September 2014 – Present

Edge Systems, Naperville - Linux System Administrator

Provide on call 24x7 support in Production Environment

Install, upgrade, compile, and configure OS (Kickstart)

Resolve open tickets in a timely, professional manner and provide a positive customer experience

Managed our cloud infrastructure using Apache Cloud stack

Maintain and manage network monitoring and alerting using Nagios

Work with the DEV and Change Management teams to deploy new codes changes into pre-prod and production environments

Work with incidents in Service-Now and JIRA tasks

Experienced in using and managing VMware, VSphere Client. Administer PPV VMware Infrastructure using VSphere Client 5.x. and Web Client

Manage the NFS and Auto mount Services upon request of the developers

Troubleshoot servers remotely used ILO/IDRAC

Troubleshooting and problem resolution of system performance and networking

Manage systems’ routine backup (R1Soft) and RSync, scheduling jobs and enabling cron

Worked closely with Oracle DBA’s, Developers, QA and Network teams

May 2012 - July 2014

EuroTech LTD. - Unix/Linux Systems Administrator

Supported of local VmWare Infrastructure using Vsphere and Web Client

Monitored the health of the systems using tools df, vmstat, iostat

Checked the log files #/var/adm/messages, /var/log/messages and troubleshoot if needed

Scheduled data backups daily, weekend

Managed and setup NFS Automount Services. Patched servers using YUM

Sent MySQL system reports daily

Day to day tasks, network troubleshooting

Worked closely with other teams such as DBA, DEV Ops

Administered, maintained CENTOS, & troubleshoot hardware, operating system, applications & network problems and performance issues

Deployed latest patches for, Linux and Application servers

Network troubleshooting used 'traceroute', 'netstat', 'ifconfig'

Installed and configured DHCP, DNS (BIND, MS), SAMBA, Sudoers, web (Apache, IIS), mail (SMTP, IMAP, POP3), FTP, NFS on all Linux servers

Monitored systems and applications with Nagios

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