List of tasks commonly performed by our Systems Administrators

Web Server (Apache)

• Installation of Apache from source
• Installation of Apache from RPM or ports or dpkg
• Setting up Web site; Configuring Website parameters and customization
• Confiugration of Apache and Frontpage extensions
• Security configuration and security audits
• Creation of SSL certificates and related configuration
• PHP installation and configuration
• Tomcat integration with Apache
• CGI, Perl, mod_perl installation and configuration
• Performance tuning and enhancements
• Install/integrate dynamic modules for Apache

Mail Server (Exim, qmail, Postfix and Sendmail)

• Install and configure mail server
• Configure email Relay; Restrict Relay
• Configure auto-responders and mailing lists
• Security configuration and audits of security status
• Integration of spam and anti-virus software
• Implementation of Web-based management software
• Setting up SMTP authentication
• MySQL integration
• User management

FTP Server (ProFTPD, Wu-FTP)

• Install and configure FTP server
• Anonymous and non-anonymous FTP
• User management and security settings
• Chroot user to their home directory
• Set-up ftp sites· Set-up mirror ftp sites

DNS Server

• Install and Configure DNS Server
• Create and manage zones and records
• Set-up master/slave DNS
• DNS server security:
• Create ACL (Access Control List) configuration

Database Server

• Installing mysql server package with optional modules support
• Installing mysql client package
• Installing mysql-devel package
• Manage database and users
• Integration with all programming languages
• Migration of database
• Replication of database
• Performance tuning

Networking

• Setting up primary and virtual IPs
• Install and configure network services
• Set-up LAN / WAN
• Secure network using firewall
• Create ipchains / iptables / ipfw to filter traffic
• NAT and Port redirection
• Samba file / print sharing for LANs
• Samba domain controller for LANs

Operating System

• Install and configure new servers
• Build, install and configure Kernels
• Update OS using up2date, yum and apt-get
• Manage users, services and 3rd party packages

Monitoring (Nagios)

• Installation and configuration
• Network services (SMTP, POP3, HTTP, NNTP, etc.) monitoring
• Host resources (processor load, disk and memory usage, log files etc.) monitoring
• NRPE plug-ins to get custom details from server
• SNMP monitoring to get detailed reports

Security

• Disable unwanted services
• TCP/IP Port checking / block recommendation
• Port Blocking
• OS / Application / Kernel Patch updates
• Upgrade packages
• Application specific security add-ons
• Vulnerability assessment – scanning with Nessus

Backup Application

• Setting up scripts to back-up data
• Remote ftp backups
• Migrating data/servers/services

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