شيخ رضوانور الرحمن

VMware Infrastructure

System Automation

IT Security

Monitoring

Devops

Cisco,Linux, windows, vmware, Docker, CI,Zabbix, Ansible,python Bash,powershell, postgresql, datacenter

Devops, systems administration

VoIP,mail,dns, proxy, elastic search ,cluster, storage ,nginx,Apache, iptables selinux

Security Support and Monitoring for Network and Servers in Datacenter. (8 years) Design Corporate IT Solutions with Cisco-Mikrotik Routers, Windows 2008 Active Directory, LDAP, Postfix, Openssl, OpenVPN, Proxy ReverseProxy & Haproxy, Apache&Nginx Advanced Administration , Linux HA Cluster, IPtables & SELinux Automatic multiple server Deployment through Ansible, Vagrent, Docker, Rundeck & Jenkins. Linux large scale Container Clustering with Load Balancing and High Availability Solutions for Application Datacenter all Server, Service, Network device security and application monitoring with one GUI interface through Zabbix distributed system, Nagios and elasticsearch with kafka cluster. Microsoft Exchange 2010,2013,Zimbra and Postfix advanced Administration Linux Bash, Shell, Awk, Sed, Python& Windows PowerShell Programming for System Atomization.  Maintain, monitor and support servers, network infrastructure, VPN connectivity and diagnoses problems with these or with the behavior of network-attached computers and also ensuring that the network infrastructure is secure, up and running. Microsoft Exchange Server2010 and 2013 Administration, Backup and High Availability. PostgreSQL,Cassandra, MongoDB and Microsoft Sql server2008 clustering, Big Data analysis and database high load scale out solution . Asterisk and OpenSip VoIP System Administration and Troubleshoot. Server Auditing, Analyzing System log for generate server Report & documentation Taking server & Database System Backup, applying Server Operating System & Antivirus updates, Patches and configuration changes. Team player of System & Network infrastructure Integration and IT asset accounting for company IT resources including software, Server, workstation, Laptop and other Networking equipment.

1.Installed, configured and administered all: Windows Server 2012 R2: DNS Servers, DFS Servers, FSMO Servers, Domain Controllers, Printer Servers, and Created Virtual DR Servers using Hyper-V and Vmware ESXi5.5 2.All User Accounts and Nested Group permissions. 3.Installed centralized Symantec Anti-virus Servers. 4.Installed Symantec End Point Protection on all Servers and Workstations. 5.Installed and configured Routing and Remote Access Server for connection between six offices. 6.Planned, Installed, configured and Administration of Exchange 2010 server with Instant messaging server. 7.Patch management, scanning systems for security MIS configuration using Microsoft baseline security analyzer. 8.Administering web mail server for the company (postfix,Exchange). 9.Group policy implementation for domain and auditing. 10.Performed Disaster Recovery of Windows 2008 domain controller and Exchange Server 2010. 11.implement and migrate old network into cisco env with Configuring HSRP, VRRP, GLBP, site to site vpn with ASA Firewall and Mikrotik router

Team Leadership

VMware Infrastructure

System Automation

IT Security