Mehmet K.

Web Server (Apache, nginx, Lighttpd, LiteSpeed) Running Apache and nginx together Mail Server (Exim, Qmail, Postfix, Sendmail) Installing and configuring the mail server FTP Server (ProFTPD, PureFTP) Master / slave DNS Server Installation - Synchronization - Backup Database Replication Performance Tuning Monitoring (Nagios) Monitoring network services (SMTP, POP3, HTTP, NNTP, etc.) Monitor server resources (processor load, disk and memory usage, log files, etc.) Disable Junk / Unnecessary services TCP / IP Connection control / block recommendation Port Blocking OS / Application / Kernel Patch Updates Upgrading packages Special security add-ons Security vulnerability assessment - Screening with Nessus Backup Application Bash script writing for backup Remote FTP backup Data / Server / Service Migration Disaster Recovery planning Transfer Site transfer between your servers Virtualization Virtualization with VMware Workstation, ESXi, Server