How to Configure a Nagios Web Interface IP Address

by Dave Wilson
three black computer cases 02 image by WaD from <a href=''></a>

Nagios is a software tool used for monitoring and managing Internet Protocol (IP) network servers, device performance and availability. While there are ways to configure automatic IP address assignment to a Nagios server, manually configuring a static IP address and subnet mask is best for Nagios server security and management.

Step 1

Open a terminal console (command line) on the Linux computer if it runs a graphical user interface by default. Usually, the terminal program can be found in the "System" "Administration," or "Utilities" section of the programs menu (depending upon the Linux distribution installed on the computer).

Step 2

Type "sudo ifconfig eth0 mask," replacing the "" with the IP address assigned to the computer and "" with the subnet mask of the network and then press the "Enter" key.

Type "sudo ifconfig" and press the "Enter" key then view the output and confirm that the new IP address is configured on the system.


  • If you receive a "command not found" or similar error, then use "/sbin/ifconfig" in place of just "ifconfig" when following the procedure. Also try removing the "sudo" from the front of the command, as it may not be needed by your Linux distribution.
  • If assigning an IP address to a computer that has more than one network adapter, use "eth1" for the second network adapter, "eth2" for the third network adapter and so forth.


Photo Credits

  • three black computer cases 02 image by WaD from

About the Author

Dave Wilson has been writing technical articles since 1993, including manuals, instructional "how-to" tips and online publications with various websites. Wilson holds a Bachelor of Arts in psychology from the University of California, Los Angeles and has Microsoft, Cisco, and ISC2 (CISSP) technical certifications. He also has experience with a broad range of computer platforms, embedded systems, network appliances and Linux.

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