Manager Management
Resume:
Tripuraiah
*************@*****.***
PROFESSIONAL SUMMARY
Overall 7+ years of experience as Linux system administrator who is Motivated, enthusiastic, and pro-active with an excellent 'can-do' attitude and ‘go-to’ personal.
7+ years of experience specialized in System Administration working on Red Hat Linux, Solaris, SuSE Linux, AIX, CentOS, Fedora, OEL, Windows environments, and VMware vSphere.
Installation and up gradation of Packages and Patches configuration mgmt, version control, service pack. & reviewing connectivity issue regarding security problem.
Experience on Web servers such as iPlanet Web server 6.0 /Sun one web server 6.3, 6.5, Tomcat 3.x, 4.x, 5.x, 6.x, and 7.x & Apache Server 1.x, 2.x and integrating them with Web logic 10.x servers.
Experience in Installing, upgrading and configuring Red Hat Linux 4.x, 5.x, and 6.x using Kickstart Servers
Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, send mail, FTP, remote access, security management and Security trouble shooting skills.
Experienced in implementing Splunk, Puppet, Chef and DevOps.
Experience using cloud providers and API’s for Amazon (AWS) with CloudSigma(EU).
Worked on Data-Center operation and migration across Unix and Linux platforms
Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red Hat Linux.
Experienced in implementing and maintaining an Apache Tomcat /MySQL/PHP, LDAP, LAMP web service environment.
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 Server monitoring, capacity planning, application monitoring with the help of Nagios, Cacti, Zabbix, Puppet, Splunk.
Implemented Trip wire and Digital board band
Implemented active directory
Experienced on Red Hat Satellite Server with custom repositories to provide a stable management solution for the Linux environment.
Participated, documented, managed ITIL controls and supported Linux environment.
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.
Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
Good understanding of OSI Model, TCP/IP protocol suite (IP, ARP, TCP, UDP, SMTP, FTP, and TFTP)
Accessed ARM based SoC hardware design for software design and test.
Installation and configuration of JBoss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
Independent problem solving and a good team player with strong interpersonal and communication skills.
Experience supporting 24x7 production computing environments. Experience providing on-call and weekend support.
Ability to work independently as well as a team member.
Experienced in Trouble shooting and Back and Recovery.
TECHNICAL SKILLS
Operating Systems
RHEL 3/4/5,6, Solaris Release 2.10/2.9/2.8/2.7, IBM-AIX 5.X, zVM Windows 2003, 2008, 2012 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, FTP, TFTP.
Cluster Environment
Sun Cluster Servers 2.2, 3.1, 3.2 and VERITAS Cluster Servers 4.1
Programming Languages
C, SQL, HTML, PHP, XML, Bash, Perl and Shell Programming, JSP, Python and Ruby
Other tools
VMware VSphere, ESX/ESXi, VCenter Server, Datacenter Puppet, Splunk, Chef and Nagios, DevOps
PROFESSIONAL EXPERIENCE
AT&T, Atlanta GA May 14 - Present
Sr. Linux Administrator
Responsibilities:
Supporting infrastructure environment comprising of RHEL and Solaris.
Building and supporting environments consisting Testing, Contingency, Production and Disaster Recovery servers.
Implemented puppet,Nagios, Splunk, Chef and DevOps tools
Performed OS provisioning using kickstart through BMC Blade Logic.
Performed patching of RHEL using yum, up2date and BladeLogic.
Experience with VMware Virtualization using ESX hypervisor of VSphere.
Installation, Configuration and up gradation of Red Hat Linux 4, 5.X, and using Blade Logic.
Creation, Installation and administration of Red Hat Virtual machines in VMware Environment.
Create, extend, reduce and administration of Logical Volume Manager (LVM) in RHEL environment.
Resolving different Users request.
Worked on projects like PCI, SR to ensure all goes well and provided support till servers go in to production environment.
Creation of SAN File System on Red Hat Linux using multipath configuration.
Configuration of Network bonding which include Active/Standby and Active/Active.
Installation of HBA cards ( Emulex and Qlogic )
Rebuilding of kernel in RHEL using mkinitrd.
Troubleshooting Network, memory, CPU, swap and File system issues, TCP/IP, NFS, DNS, SMTP in Linux and Solaris servers.
Performance tuning of Virtual Memory, CPU, system usage in Linux and Solaris servers.
Configuration of Monitoring tools in Linux and Solaris servers.
Performed Disaster Recovery in RHEL servers which consists of LVM based FS and Red Hat Clustering.
Supported class monitoring and management tools such as Open NMS, Tivoli and VCO.
Installation, configuration and administration of Jboss, Apache, Weblogic, Tomcat and Websphere.
Building of Oracle RAC (Oracle Real Application Clusters) environment.
Creation, initialization, addition of Oracle ASM and FSR devices in multipath environment
Performance Monitoring and Performance Tuning using Top, prstat, SAR, vmstat, ps, iostat.
Creation of Jumpstart and Kickstart configuration for the automatic provision of servers using Bladelogic.
Installation of third party tools using packages.
Environment: Environment: Red Hat Linux 5.X, HP & Dell Servers, Oracle/DB2, VMWare ESX 4.x, Autosys, VMware VSphere, ESX, BMC BladeLogic.
WL Gore – Newark, DE
Linux Admin / (Chef & puppet) Developer Jul 13 - Apr 14
Responsibilities:
Worked on variety of Linux platforms Red Hat Linux, Solaris which includes installation, configuring and maintenance of applications on this environment.
Works with Symantec and BSC team to setup the Symantec O3 IDLINK Open VPN Servers.
Build servers using Kick Start, Red Hat Satellite Server, and VSphere Client.
Implemented cloud services aws.
Implemented automations tools Chef, Puppet, Splunk, DevOps
Migrated to Red hat satellite server 6 version.
Implemented Bash, Perl, Python scripting.
Updating patches to keep servers updated against bugs present in the operating system using Red Hat Satellite Server, yum, etc.
Worked exclusively on VMware virtual environment.
Experience in using VMware vMotion to move VM’s from One Datacenter to another datacenter.
Involved in installation and configuration of various Third party software onto servers.
Installed, configured and provided support for Tivoli Monitoring software across various OS platforms like RHEL, AIX and Solaris.
Installed packages using YUM and Red hat Package Manager (RPM) on various servers.
Troubleshooting network administration, IIS configuration, DNS setup and modifications, firewall rule sets, local and distributed director, connectivity, and supporting applications.
Worked with Red Hat Satellite Server which is used to push changes across various servers simultaneously.
Performed the daily system administration tasks like managing system resources and end users support operations and security.
Responsible for independent support of Tier 2 issues: reboots, start/stop services, reset Terminal Service and pc anywhere connections, and administrative server maintenance. Daily follow up with clients to ensure resolution of all issues.
Provide support to Account Managers, UNIX and Windows technicians, and other departments.
Involved in ILMT Agent Deployments and Oracle/SQL Upgrade project which includes various UNIX builds of different OS platforms across various data centers.
Used Logical Volume Manager for the management of Volumes including creation of physical and logical volumes on Linux.
Coordinated with various cross functional teams across IT operations to make sure smooth functioning of projects.
Worked closely with DBA Team in order to adjust kernel parameters as per requirements.
Day to day resolution on Linux based issued though SMS ticketing system in compliance to SLA cycles.
Worked on projects like PCI, SR to ensure all goes well and provided support till servers go in to production environment.
Performed application installation and management on IBM AIX and Linux servers for applications like Web Sphere Application Server (WAS) 7, JBoss 4.2.x, 5.x, Sun JES Web Server 6.1, Oracle 10g, Sybase 12.5 etc.
Automating many day to day tasks through Bash scripting.
Environment: Red Hat Enterprise Linux 4.x/5.x/6.1, AIX 6.x, Solaris 8/ 9/10, Tivoli Storage Manager, VMware ESX5, Tivoli Net backup, and Web sphere. Windows 2012 servers, Windows 2008, IIS 7.0 & 7.5
KPLG LLP, Montvale, NJ Oct 12 - Jun 13
Sr. Linux Administrator / Puppet Developer
Responsibilities:
Involved in 24X7 Production support, Build and Migration Assignments.
Worked Primarily on RHEL 4/5, HPUX, and Solaris Operating Systems.
Text processing, also in network programming with Perl Scripting.
Involved in migration activities using Red Hat LVM, Solaris LVM, Veritas and EMC Open Migrator.
Implemented automations tools Puppet, Splunk, Devops
Installation of OAS (Oracle Application Server) on Solaris 9 and its configuration with oracle database.
Writing Shell and Perl Scripting for automation of job.
Tuning the kernel parameters based on the application/database requirement
Used Veritas File system (VxFS) and Veritas Volume Manager (VxVM) to configure RAID 1 and RAID 5 Storage Systems on Sun Solaris.
File system tuning, growing, and shrinking with Veritas File system 3.5/4.x.
Installed and configured GFS cluster for holding databases.
Manage user accounts for the team access for Red Hat Satellite Server.
Build channels and pull the packages from master Red Hat Satellite Server.
Troubleshooting hardware, software and configuration problems for various protocols and topologies.
Configured open LDAP Red Hat Linux systems.
Setup optimal RAID levels (fault tolerance) for protected data storage in NAS environments.
Install and configure DHCP, DNS (BIND, MS), web (Apache, IIS), mail (SMTP IMAP and POP3) and file servers.
Created new slices, mounted new file systems and uncounted file systems.
Expertise in troubleshooting the systems and managing LDAP, DNS, DHCP and NIS.
Worked with different Active directory databases like Microsoft AD, Tivoli Directory server with LDAP.
Worked on making DNS entries to establish connection from server to DB2 database.
Performed patching, backups on multiple environments of Solaris, Linux and VMware.
Assisted other UNIX administrators when help was needed (i.e. creating UNIX accounts, writing scripts to perform system administrator functions, responding to trouble tickets, etc).
Involved in preparation of functional and system specifications. Estimated storage requirements for applications.
Environment: Red Hat Linux (RHEL 3/4/5), Solaris, Logical Volume Manager, Sun & Veritas Cluster Server, Global File System, Red Hat Cluster Servers.
B.H.E.L, Hyderabad, India Oct 2010 - Sept 2012
Linux Administrator
Roles and Responsibilities:
Expertise in installing, configuring and up gradation of RedHat Linux.
Managing user accounts, passwords, setting up quotas and support.
Documented all technical inquiries, develop and review content for knowledge base
Experience in installation and configuration of RPM packages for upgrades using YUM server.
Worked on Linux Kickstart OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SFTP, SSH, LDAP integration.
Responsible for configuring real time backup of web servers.
Troubleshoot and fix the issues arising from anywhere in the infrastructure with the help of associated teams like Networking, Database Administration and DevOps.
Respond to tickets opened by routine alarms and network issues.
Used LDAP to set Permissions, as an administrator to allow only certain people to access the LDAP database
Served as the point of contact for the offshore teams that required access as well as technical resource.
Provided 24/7 on call support for a cluster of over a hundred Red Hat Linux servers.
Environment: Dell Hardware, RHEL 3.x, Switches, Hubs, Apache, LDAP Servers, NFS IIS 4.0 and Oracle 8i.
NuTech Hyderabad, India June 2008 – Sept 2010
Unix/Linux Administrator
Roles and Responsibilities:
Monitored the usage of CPU, load on CPU, checking the load on memory and various security aspects of the systems configuring the network printers.
Involved in implementation, configuration, and administration of LAN, WAN, CISCO VPN, Pix Firewall and VOIP Systems.
Experience in Installation, Configuration and Administration of High Availability VERITAS Cluster Servers for failover and redundancy purpose.
Performed problem determination and restored service using standard procedures.
Maintained a secure Samba file server on Red Hat Enterprise Linux systems for integrated data communication between Windows and Linux Operating Systems.
Expertise in installation, configuration and maintenance of Oracle 8i on Sun Solaris
Security measures blocking unnecessary ports and restricting user’s remote logins.
Managed data and disk drives, disk mirroring and RAID implementation using Solaris Disk Suite.
Joined multiple disks to overcome disk size limitations, mirrored data for fault tolerance. Spread data over multiple disks for performance enhancement.
Configured Jumpstart server for Solaris 8/9 and kickstart server for Red hat 4.0.
Responsible for Day to Day Backup and Recovery using tar.
Used commands for creating new users, groups, user passwords, changing passwords, managing user accounts and locking users.
Monitored bad user logins and unauthorized users.
Performed Recovery Management on tapes using Ignite-U.
Environment: Linux, Sun Solaris 8/9, Oracle 8g, NIS, DNS.
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