Linux - RedHat Linux, CentOS, Debian, SUSE, Slackware
UNIX - FreeBSD, OpenBSD, NetBSD, Solaris.
Windows - Windows Server 2000, Windows Server 2003

Virtuozzo, Xen, VMWare

Apache, Light HTTPD, IIS, Apache Tomcat, Microsoft Windows NT Application Services, Sun Java Application Server

WHM cPanel, Plesk, Helm, Cobalt RAQ, Winpanel, Alabanza, Ensim, Hsphere, Webmin, DonHost, Directadmin and Servers without control panel.

Sendmail, Qmail, EXIM, hMail, Mail Enable Mail Server, Microsoft Exchange Server, Eudora Internet Mail Server, iMail Server, Courier Mail server

VSFTPD, Pure-FTPd, ProFTPD, WS_FTP Server, FileZilla Server

• Domain parking issues
• Modifying MX. A and CNAME records for domain Zones
• Correcting Domain Name resolution problems
• RDNS configuration
• Setting up name servers, master-slave, rndc setup, automate slave using script --- Almost anything related to dns

• httpd.conf problems
• .htaccess errors
• Password protection issues
• Site oriented IP blocking issues
• HostNameLookups
• Mime types
• Apache Handler problems
• URL blocking and redirection issues
• Secure Cert problems.
• Apache rewrite rules
• Adding custom compiled modules into apache
• Custom configurations for log analysing programs - webalizer, awstats etc

• IMAP issues
• Webmail issues
• Catch-all address issues
• SMTP issues
• POP issues
• enabling / disabling PHP mail() function
• POP-before-SMTP and relay denied issues
• mailing lists
• autoresponders
• Client Setup
• POP authorization
• Anti-spam measures
• Email filter issues with Procmail and .forward

• Anonymous ftp enabling
• FTP configuration issues
• FTP virtual hosting issues
• Creation of FTP-only users

• Access denied
• Handling multiple databases
• Connectivity issues from CGI scripts
• Allowing or denying grant permissions from local or remote locations
• Modification of database variables such as max connections, memory used etc.
• Managing the mysql connections among various virtual-hosts
• Broken connectivity through mysql.sock issue

• Anti-portscanning
• Log Checking
• IP blocking
• Firewall issues
• anti-SPAM
• Anti-virus
• TCP wrappers
• DDoS attacks
• Hotlink protection

• User specific Raw Logs problems
• System wide raw log problems
• Log size control
• Stats not updating issues
• Webalizer, Analog, Awstats, Urchin

• Manually Installing Frontpage Extensions on problematic Domains
• Manually Removing Frontpage Extensions
• Frontpage mail extension problems
• Frontpage clashes with .htaccess
• Frontpage and Secure forms issues
• Enabling / Disabling Shell access

• Apache JServ
• Tomcat

• Languages - PHP, Perl, Python, C, C++, Servlets, ASP
• CGI file permissions
• CGI connectivity with the database
• Internal Server Errors
• Sending mail from scipts
• Form to mail problems
• Perl modules Installation

• Connection refused issues
• Enabling / Disabling Shell access

• Interchange
• Agora
• Miva
• Interchange server configuration issues
• Undefined catalog errors with Interchange

• Enabling / disabling / customising reseller account privileges
• Resold accounts' ownership issues

• Configuring automatic account backup in the server.
• Restoring backups
• Configuration File Rollback

• Transferring accounts from server-to-server
• Account migrations between servers with heterogeneous control panels

• Disk Quota initialization on separate partitions
• Disk Quota initialization on separate partitions
• User and group quota errors' corrections occured due to incorrect file permissions
• Disk quota modification issues
• Block / inode quota implementation

• Addition / deletion of IP addresses in the server.
• Issues related to dedicated IP assignments to domains
• Manual correction of IP aliases.

• Temporary / permanent mounting of additional hard drives and hard drive partitions
• Partitioning, formatting, and initializing filesystems on fresh additional hard drives

• Setting up cron jobs to schedule execution of scripts / other tasks
• Setting up scheduled jobs' execution reports to be mailed to users.