I have 6 years hands on work experience in ISP and System Administrator. My strength areas are troubleshooting, administration, design and implementation of IT systems. Specialization: # Server OS Platform: MicroSoft, Centos, Redhat, Ubuntu, Debian, Suse Linux. # Virtualization and Cloud: Openstack, Redhat, Centos, Ubuntu, Mircosoft. # Email: Exim, Postfix, Dovecot, Kerio Connect, Zimbra, SSL authentication, SPF, DKIM, PTR, DMARC. # Other Application Server: Microsoft Active Directory, Migration, Mircosoft Exchange 2016, DNS Servers, Domain Server, Hosting Cpanel, Edge Server, MailScanner, Anti spammer. PFSense, Mikrotik Router Board, Hyper-V, VMWare ESXI, HyperV. Windows & Linux Cluster, Asterisk, Elastix, Exim, Postfix, Dovecot, Zimbra, SSL authentication, SPF, DKIM, PTR, DMARC Apache, IIS, Ngnix, Centos, Ubuntu/Debian OS and FreeBSD, Routing, Port Forwarding. FTP, DHCP, OpenVPN, PPTP, Proxy, Samba.