Richu

AREAS OF EXPERTISE System Administration * Respond to customer inquiries, * primarily via email and Instant Messaging and troubleshooting * ,Maintenance and administration of LIVE Remote servers , * Securing the Kernel and other softwares by applying patches and keeps the system software updated. * Able to install and configure different system services. * Configuring PXE boot and Disc less enviorment * Patch and update applications using the PORTS collection and also from source. * Kernel patching and compilation. * set up Authentication, Authorization, and Access Control. * Monitor and manage Log Files. * set up Virtual Hosts. * set up Performance tuning. * Secure the web server - directory permissions. Servers configuration & its administration * Setting up a DNS,QMAIL,HYLAFAX, DHCP, NFS,FTP,SAMBA ,NIS servers, routers etc. * set up Apache Webserver. Mail Servers * Installing and configuring QMail ,sendmail &postfix servers Security Concerns * Install firewall to prevent DDOS and SYN attacks from remote hosts. * Install SELINUX security enhancements. * Install Brute force detection and prevent attacks. * Capable of detecting and cleaning hacked servers. * Securing the Apache web server with modules like mod dosevasive for preventing DDOS and mod_ security for preventing intrusions using web pages of insecure web applications. Iptables * Able to build Internet firewalls, setting up NAT features, packet filtering. Router * Configuring and troubleshooting Cisco routers and Switches