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Unix/linux Administrator Resume Profile

Bloomington, IL

Summary

  • Over 7 years of experience specialized in System Administration working on Redhat Linux, Solaris, Suse Linux, AIX, Cent OS, OEL and Windows environments.
  • Experience in administering Solaris Linux. Experience in Installation, Configuration, Backup, Recovery, Maintenance, Support of Sun Solaris Linux.
  • Experience in Installing, upgrading and configuring RedHat Linux 3.x, 4.x, 5.x using Kickstart Servers and Interactive Installation.
  • Experience in Installing, upgrading and configuring SUN Solaris 2.6, 7, 8, 9 and 10 on Sun Servers using Jumpstart Servers, Flash Archives and Interactive Installation.
  • Worked with Database administrators to tune kernel for Oracle installations.
  • Experience with Veritas Volume Manager VxVM , Veritas File System VxFS , Veritas Net Backup, Veritas Clustering with SAN, NAS environment.
  • Experience in installing, configuring and implementing the RAID technologies using various tools like VxVM and Solaris volume manager.
  • Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Redhat Linux.
  • Installation and upgradation of Packages and Patches configuration mgmt, version control, service pack. reviewing connectivity issue regarding security problem.
  • Experience in configuration of NIS, NIS , DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, sendmail, ftp, remote access, security management and Security trouble shooting skills.
  • Experience on Webservers such as iPlanet Webserver 6.0 /Sun one web server 6.3, 6.5, Tomcat 3.x, 4.x, 5.x Apache Server 1.x,2.x and integrating them with Weblogic 10.x servers.
  • Experience in administering VMware Infrastructure Client 3.5 and Vsphere 4.0.
  • Experience in Installation of Oracle and MYSQL.
  • Experience in writing shell scripts to automate the administrative tasks and management using cron and at.
  • Expertise in scripting for automation, and monitoring using Shell, PHP, Python Perl scripts.
  • Team player with good management, analytical, communication and interpersonal skills.
  • Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
  • Experience in Sun Solaris 10 Creation of Zones, Service Management Facilities, Virtualization, Container based .
  • Experience working in SAN environment like EMC Symmetrix DMX3, DMX4 and Clariion CX3 series arrays.
  • Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570.
  • Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.

Technical Skills

Operating Systems: RHEL 3/4/5/6, Solaris Release 2.10/2.9/2.8/2.7, IBM-AIX 5.X, Windows 98, Windows 2000 and NT.

Hardware: HP Proliant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500, E10k, E15k, E25k, Sun Ultra's, V210, V280, V490, V880, V6800 SUN Ray 1g Ultra Thin Client SUN Desktops SPARC 10, 5 , DMX3 and DMX4 Storage Arrays, F5.

Software: Veritas Volume Manager 3.5/4/5, Veritas File System, Veritas Cluster Server 3.5, Veritas Netbackup 6.0, MS-Office/MS-Project.

Web/ Application Server: Tomcat, Apache DB2, Oracle.

Network Protocols: DHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS, nslookup, RIP, OSPF, BGP, TCP/IP, and tcpdump..

Cluster Environment: Sun Cluster Servers 2.2, 3.1, 3.2 and VERITAS Cluster Servers 4.1.

Programming Languages: C, SQL, HTML, PHP, XML, Perl and Shell Programming, JSP, Python

PRofessional summary

Confidential

Unix/Linux Administrator

Responsibilities

  • Administration of RHEL 5, 6 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
  • Installation, configuration, administration of Solaris 9, 10 on SPARC based servers using Jumpstart.
  • Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 4.1 and migrating servers between ESX hosts.
  • Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
  • Administration, package installation, configuration of Oracle Enterprise Linux 5.4.
  • RPM and YUM package installations, patch and other server management.
  • Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
  • Worked and performed data-center operations including rack mounting, cabling.
  • Installation of Solaris 9, 10 on Sun Fire and Enterprise server using Jumpstart, custom configuration like installing packages, configuring services.
  • Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
  • Creating Zones, containers, LDOMs on Solaris servers, creating zpools, ZFS file system installing Oracle, Java based applications on them.
  • Tech and non-tech refresh of Linux servers which includes new hardware, OS upgrade, application installation, testing.
  • Worked on creating VLANs, upgrading BIOS, configuring servers on HP Virtual Connect Manager for HP Blade and Standalone servers.
  • Installing, configuring Redhat servers via Cobbler, automating scripts, tasks using Cobbler.
  • Installation, configuration of MySQL 5.1 which includes creating database tables, updating table entries.
  • Creating profiles, manifests for new servers, and pushing them to servers using puppet.
  • Worked on Oracle OVM, creating LDOMs, adding resources, hardware.
  • Creating policies, jobs in HP Opsware, deploying them on linux, windows, solaris servers.
  • Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager Solaris Volume Manager. File system Tuning and growing using VERITAS File System VxFS , coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
  • Worked on KVM, installing, configuring Linux VMs.
  • Installing, configuring Jboss 4.3 on Linux, Unix servers, integrating it with Apache server.
  • Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
  • Gathering requirements from customers and business partners and design, implement and provide solutions in building the environment.
  • Installing and configuring Apache and supporting them on Linux production servers.
  • Worked on E-commerce based application products related to internet marketing, credit card transactions,inventory management.
  • Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
  • Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage on 2, 3, 4 node clusters.
  • Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
  • Monitored server and application performance tuning via various stat commands vmstat, nfsstat, iostat etc and tuned I/O, memory, etc.
  • Installation and configuration of VxVM 5.0 and creating disk groups, volumes, increasing volumes.
  • Coordinated with the Storage, Network and Hardware teams on server provisions HP Proliant DL385/585 G5, G6 servers, and HP BL 465C G5 blade centers .
  • Installing, configuring Weblogic 10.3, Apache and integrating them.
  • Adding servers to the domain and monitoring them using spectrum, sitescope, cacti.
  • Developed automated processes that run daily to check disk usage and perform clean up of file systems on UNIX environments using shell scripting and CRON.

Environment: Red-Hat Linux Enterprise servers HP Proliant DL 585, BL 465/485,ML Series, SAN Netapp , BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6, ,VMware Virtual Client 3.5, VMware Insfrastructure 3.5.

Confidential

Linux/Unix Administrator

Responsibilities

  • Installation and administration of RHEL 5, 6, Solaris 9,10 and Cent OS 5.
  • Installation, configuration, administration of Solaris 9,10 on SPARC based servers using Jumpstart, worked on T. M series servers.
  • Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server.
  • Remote system administration using tools like SSH, Telnet, and Rlogin.
  • Worked on Citrix Xen 6.0 which includes installing, configuring Redhat servers.
  • Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
  • Applied appropriate support packages/patches to maintain system integrity.
  • Performed capacity analysis, monitored and controlled disk space usage on systems.
  • Monitored system activities and fine tuned system parameters and configurations to optimize performance and ensure security of systems.
  • Pushing files, updates using CFEngine.
  • Adding servers to domain and managing the groups and user in AD, installing and configuring sendmail.
  • Custom build of Windows 2003 and Windows 2008 servers which includes adding users, SAN, network configuration, installing application related packages, managing services.
  • Creating profiles, manifests for new servers, and pushing them to servers using puppet.
  • Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation scripts.
  • Installed, configured AIX 5.3, 6.1 on IBM p,x series servers using NIM, creating LPARs using HMC on p series servers.
  • Creating virtual machines using Xen and deploying OS, managing hardware.
  • Creating, installing, Weblogic Application servers, deploying WAR, JAR files on them installed on both Linux, Solaris servers.
  • Installing, configuring Jboss 4.3 on Linux, Unix servers, integrating it with Apache server.
  • Worked with project manager and auditing teams to implement PCI, SOX compliance.
  • Jumpstarting Solaris 9, 10 on Sun servers, configuring servers. Configured/Maintained Zones, LDOMs, ZFS filesystem Sun Solaris 10 Servers.
  • Management and monitoring of various services using Service Management Facility and Service Administration.
  • Installing, configuring Veritas Netbackup 6.5 on linux, solaris servers, creating backup polices.
  • Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
  • Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager Solaris Volume Manager. File system Tuning and growing using VERITAS File System VxFS , coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
  • Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
  • Fine tuning of Servers and configuring networks for optimum performance.
  • Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.
  • Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
  • Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.
  • Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
  • As a member of the team, monitored the VERITAS Cluster Server 4.1 in SAN Environment.
  • Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
  • Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes.

Environment: Solaris 2.9 / 2.10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Sun E10k, E25K, E4500, SunFire V440/880, DMX 3 DMX4, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Confidential

Unix Administrator

Responsibilities

  • Installation and administration of RHEL 4.0/5.0 and SUSE 10.x.
  • Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server.
  • Remote system administration using tools like SSH, Telnet, and Rlogin.
  • Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
  • Installation, configuration and administration of VMware, Solaris Zones, Containers and Ldoms.
  • Automation of jobs through crontab and autosys.
  • Installation of packages, patch management, volume managment on Suse servers using YaST.
  • Applied appropriate support packages/patches to maintain system integrity.
  • Performed capacity analysis, monitored and controlled disk space usage on systems.
  • Monitored system activities and fine tuned system parameters and configurations to optimize performance and ensure security of systems.
  • Adding servers to domain and managing the groups and user in AD, installing and configuring sendmail.
  • Custom build of Windows 2003 and Windows 2008 servers which includes adding users, SAN, network configuration, installing application related packages, managing services.
  • Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts.
  • Expertise in VMware vSphere 3/4/5 version ESXi and vCenter operations Management.
  • Worked with project manager and auditing teams to implement PCI compliance.
  • Build LPAR and DLPAR system and Installed AIX 5.2, 5.3 on LPAR using NIM.
  • Installed and configured Virtual I/O Server V1.3.01 with fixpack8.1.
  • Integrating Weblogic 10.x and Apache 2.x and deploying EAR, WAR files in Weblogic Application servers.
  • Installed, configured, cloned VMs on VMware 5, Vsphere 4.0, configured ESX hosts, adding datastores to ESX hosts, creating vswitches, templates, migrating VMs across ESX hosts.
  • Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
  • Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager Solaris Volume Manager. File system Tuning and growing using VERITAS File System VxFS , coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
  • Fine tuning of Servers and configuring networks for optimum performance.
  • Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.
  • Installing, configuring Nagios on Linux, Solaris clients.
  • Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
  • Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.
  • Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
  • As a member of the team, monitored the VERITAS Cluster Server 4.1 in SAN Environment.
  • Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
  • Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes.

Environment: SUN Servers 6500, 4500, 420, Ultra 2 Servers , Solaris 2.6/2.7/8, Veritas NetBackup , Veritas Volume Manager, Samba, NFS, NIS, LVM, Linux, Shell Programming.

Confidential

Systems Administrator

Responsibilities

  • Installation, Configuration, Up gradation and administration of Sun Solaris, RedHat Linux.
  • User account management and support.
  • Jumpstart Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
  • Network traffic control, IPSec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat Linux Software.
  • Responsible for configuring and managing Squid server in Linux.
  • Configuration and Administration of NIS environment.
  • Managing file systems and disk management using Solstice Disksuite.
  • Involved in Installing and configuring of NFS.
  • Package and patch management on Sun servers.
  • Kernel tuning, Writing Shell scripts for system maintenance and file management.
  • Worked on Solaris volume manager to create file systems as per user and database requirements.
  • Trouble shooting the system and end user issues.
  • Responsible for configuring real time backup of web servers.
  • Log file was managed for troubleshooting and probable errors.
  • Responsible for reviewing all open tickets, resolve and close any existing tickets.
  • Document solutions for any issues that have not been discovered previously.

Environment: Sun Solaris 2.6/7, SUN Ultra Enterprise 6000/450, SUN Ultra 10/5/2/1, Windows NT 4.0, RHEL 3.x.

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