Setup the DNS on a setup - AD-EYE/AD-EYE_Core GitHub Wiki

Errors caused by the lack of proper DNS on a setup

• In Matlab, when you run rosinit('name_of_the_linux_computer'), the following error happens: Cannot connect to ROS master at http://lenovo-laptop:11311. Check the specified address or hostname.

• In the Linux terminal, after connecting Matlab, this message is displayed: Couldn't find an AF_INET address for [DESKTOP-GN0SSH]

Step to resolve the issue

Find IPv4 address and computers name

• On Linux, write ifconfig in a terminal to prompt the IPv4 address.
• The name of the Linux computer is written in the terminal. If you want to change it, follow this step: https://gits-15.sys.kth.se/AD-EYE/AD-EYE_Core/wiki/Configure-PC-name-and-user-account
• On windows, write ipconfig in a terminal to prompt the IPv4 address.
• The name of the windows computer can be found by typing name in the search box of windows 10.

Setup on Linux

• In the file /etc/hosts, make sure the Windows computer name is linked with the windows IPv4 address. You can edit the file with the command sudo gedit /etc/hosts. For example: 130.237.57.121 DESKTOP-GN0SSH

Setup on windows

• In the file C:\Windows\System32\drivers\etc\hosts, make sure the Linux computer name is linked with the Linux IPv4 address. For example: 130.237.57.244 linux-computer. You need administrator's rights to edit the file.