Aswin

ASWIN MOHANAN Phone: +91 - ; Email:-Technically sound and business-oriented talent with extensive expertise in server and networking solutions, coupled with excellent grasp of cutting-edge technology solutions to drive business growth and organizational success. Fully focused and committed on achieving bottom-line results within the budgetary limits while developing and implementing advanced technology solutions to meet diversified business needs. Excellent interpersonal/communicational skills and leadership qualities to guide complex projects towards the success route. PROFESSIONAL SUMMARY ∙ ∙ ∙ Overall experience of 11 years as a Systems Administrator with hands-on experience in Sun Solaris, Red Hat Enterprise Linux, and Windows. Excellent knowledge on UNIX/Linux Command Line Interface and Network Services. Self motivated with a positive attitude to learn new domains. Ability to deliver the best under challenging circumstances. Operating Systems: ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ Red Hat Enterprise Linux 4, 5.0, 5.1 , 5.2 , 5.3 , 5.4, 6,7 Windows 98/XP/7/8/2003 Server Fedora Cisco systems routing and Configuration SUN Solaris 8 and 10 Almost all major Linux distributions – 2.4 and 2.6 kernel Windows NT, 2000,2003, Windows 7, Windows XP Centos 5.3,5.4,5.5, 6,7 Ubuntu 12.04, 14.04 desktop & server Kali Linux Back track Pfsense Cloud Linux cPanel Yosemite EI Capitan Major Platforms Handled: ∙ ∙ ∙ ∙ Intel x86 based servers and workstations Sun E450 RISC based servers. AMD 64 based Servers. Hp Prolient Dl 380 ∙ ∙ ∙ ∙ Hp Prolient Dl 360 KVM Switch Dell Poweredge Apple OsX server Control Panels: ∙ ∙ ∙ ∙ ∙ ∙ cPanel Plesk VestaCP Webmin IspManager Ajenti Networking: ∙ ∙ ∙ ∙ Network installation and maintenance of various networking equipment like Cisco AS5300 RAS, Cisco 2610 Router, and Cisco Catalyst Switches. Leased line modems (2Mbps and 64Kbps) Leased Line modems (50 Mbps) Pfsense 2.1 Watch guard, Firebox. WAN, LAN and V-LAN management. Also used the addon pFblocker and configured as office firewall. PROFESSIONAL EXPERIENCE: From 2009 till now: I have been working as a freelance System Administrator (Linux and Windows) serving a number of domestic and international clients since 2009. My loyal clientele includes some of the most respected technology firms such as Singlehop Data Center Chicago, Outsmart INC Boston and Ezydot (AU) to name a few. My primary responsibilities are as follows: ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ Providing Level-3 technical support for server management and administration activities. Backup and restoration of system disks. Planning for disaster recovery, mitigating security loopholes and protecting access levels. Ensuring that support calls are logged and handled effectively. Providing 1st / 2nd / 3rd Line support remotely and face to face to clients & internal staff members. Obtaining quotes for supply of goods and services from suppliers. Detecting and correcting File System errors. Backup and Recovery of Software's at Customer Site ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ Scheduling jobs in UNIX and Linux Troubleshooting the network Network monitoring and configuration / maintenance of networking equipment Firewall configuration Maintaining Leased Lines, E1/R2, ISDN PRI and BRI lines Maintaining DNS servers Maintaining Mail servers (Postfix,Qmail, Exim) Maintaining Web servers (Nginx, Apache) Configuring Hardware & Software RAID Web hosting support for LAMP environment Web hosting support for Sun one application server Web hosting support for Sun one web server Java/Open JDK support. php support. Mysql support. Oracle server support. Career Highlights: ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ Worked closely with internal developers to implement resources in a timely, effective and cost-efficient manner. Architect-ed, planned, deployed and maintained network and servers to vastly improved reliability, flexibility and performance. Producing documentation on operational processes, user procedures and guidelines. Hands-on experience in server performance analysis & capacity management. Provided superior customer support for dedicated servers, ISP and LAN customers by troubleshooting escalated support issues. Provided technical support training for junior system administrators. Fixed server hard disk bad block issues. Deployed and maintained off-site machines through the access of KVM. Working experience of Ubersmith ticketing system. Expertise with multiple control panels including cPanel, Plesk and Webmin. Configuration and management of Exim / Sendmail / Qmail email systems. Configuration & Optimization of Mail scanner & ClamAV Security hardening and performance optimization for Apache, MySQL, PHP5. SU_PHP, PHPSuexec / eAccelerator / BIND / SOA optimization / DNS troubleshooting / Ability to seamlessly perform downtime-free system migration techniques including A record updates. Migrations done from windows server to Windows server. Migrations done from Windows to Linux server of PHP websites. Migrations done from Linux base server to Linux base server. ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ Migrations done from Cpanel to plesk servers. Migrations done from Plesk to Plesk servers. Migrations done from cPanel to cPanel servers. Firewalls Used: IPTables, CSF, APF, TCP Wrappers Pfsense firewall management. IP Migrations when the customers need server upgrades. Remote management through KVM / VNC as well as SSH. R1soft backup services auditing. Linux software installations on Centos, Ubuntu and RHEL. Nagios server installation, monitoring and management. Used tracing and profiling tools such as ps, top, strace, ptrace, gdb, ldd, vmstat, mpstat, sar, iostat, etc. Exim troubleshooting / spam tracking RED 5 server installation php ad-dons installation and management. Management and support for the opensource software's Openstack instance. Administration of internal Firewall and server setup. Java server installation and configuration. Tomcat server installation and configurations. Anti-virus software installation and setup. Setup and management of Openstack cloud enterprise cluster. I have done the cluster with 6 servers. In-depth knowledge of different modules - NOVA, SWIFT, CINDER, HORIZON, KEYSTONE and Glance. I am comfortable with two versions of Openstack (Openstack Grizzly and Openstack Icehouse) Mysql master and slave setup. Setup and management of VMware workstation. OwnCloud server management for the file sync between unlimited machines, including servers, desktop machines, mobiles, kiosks and tabs. Windows/Linux POS machines administration without active directory and via VNC/Teamviewer. Touch screen calibration fix by using the software xinput_calibrator. Local and network printer management. Also Linux printer sharing by using CUPS and linux printer driver installation (Boca printers, Brother printer and Star plus pos printer). Zabbix Monitoring Wildfly server setup and configurations Apache Activemq setup and configurations Openvpn administration Saltstack administration Bash scripting Nginx setup and configurations Zabbix server monitoring ∙ Saltstack orchestration management Technical Certifications / Credentials: RED HAT CERTIFIED ENGINEER (RHCE- (with 100% mark) MICROSOFT CERTIFIED PROFESSIONAL (MCP - Highest Educational Qualification Bachelor of Computer Application (BCA) [College Name], [University] Final Result ​- (1st/2nd/3rd Division) Overall Percentage​ - [81%] Academic Years ​- 2009 - 2012 PERSONAL DETAILS: Contact Address - Kuzhuppilly House, Kadukutty. PO, Chalakudy, Thrissur (DIST), Kerala, India, PIN - 680309 Tel: -, Mob: - SKYPE - ASWIN.MOHANAN Father’s Name - K.G. Mohanan Date Of Birth - 20-MAR-1992 Marital Status - Single