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How do I change the zone setting of a DVD drive (DVD region code) under Linux operating systems?

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How do I restrict the number of connections used by a single IP address to my server for port 80 and 25 using iptables?

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How do I redirect 80 port to 8123 using iptables?

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How do I parse my Linux servers IP address using a Bash shell?

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Q. How do I find out subnet mask on UNIX operating system? Can you tell us the name of command and configuration file to store subnetmask under UNIX? A. A subnetwork/ subnet is a range of logical addresses within the address space that is assigned to an organization. Subnetting is a hierarchical partitioning of the […]

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What ports need to be open for Samba to communicate with other windows/linux systems? I need to configure Linux firewall so I need the exact port TCP and UDP port numbers for SMB/CIFS networking protocol.

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