richumem

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 software’s by applying patches and keeps the system software updated. * Able to install and configure different system services. * Configuring PXE boot and Disc less environment * 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 Web server. Mail Servers * Installing and configuring Qmail ,sendmail 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.