What is CentOS?

What is CentOS? Generally used for Servers such as Web Hosting, Mail Servers, VPN Servers. On the technical side, CentOS is basically the same as RedHat Linux. VPN Servers typically allow Windows Users to share files and access Company directories. They can also run automated backups from all the  Desktops and Servers in your office. ...

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Firewall-IPTables-Block or Unblock IP Address

Linux-CentOS-Firewall-IPTables   How do I block an IP address or subnet under Linux operating system? In order to block an IP on your Linux server you need to use iptables tools (administration tool for IPv4 packet filtering and NAT) and netfilter firewall. First you need to log into shell as root user. To block an...

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