First, we have to connect to our server using SSH or open a terminal from our computer. Of course, to change the hostname on CentOS 7 machines is possible with only a few steps. I think this is a good approach but happy for any feeback. Change Hostname on CentOS 7 Using Hostname and Hostnamectl Commands. To turn a newly installed system at a random ip into a host with a statically assigned address: ansible-playbook site.yml -i hosts.ini -extra_vars "ansible_ssh_host=" -limit The names are now defined by a group of factors (device type, adapter, port/ID, and so on). The example, in this case, is a static IP on the local network, i.e., it is not a static public IP over the Internet. In this article, we saw an easy way to set an IP address in CentOS.
ifconfig Verify IP Address in CentOS Conclusion. However, the feature was enabled by default only with version 7, which meant that eth0 and eth1 were no more. Finally, run ‘ifconfig‘ again to verify if static IP has been set.
Or for a host with static network settings and an ip on two subnets: How to Configure Network Settings on CentOS 7 Using the Terminal How Network Interface Naming Works RHEL introduced its new naming convention for network interfaces in version RHEL 6. I then create keyfile config files suitable for the various kinds of networking configurations I want to deploy: Prior to ansible I had been uninstalling network-manager and manually configuring hosts via /etc/init.d/network-scripts/ifcfg-* files - I think I could do the same thing with ansible using the ansible_default_ipv4 fact: "ansible_default_ipv4": port=22 delay=10 timeout=300 I feel like this must be a pretty common need - and there must be a lot of people with questions about the right approach to take after all the changes to the network configuration system in the transition from rhel-6 to rhel-7 (namely, network-manager by default, consistent device naming by default from the kernel, systemd). Add custom boot entry in CentOS 7.x (or GRUB 2. Configuring a static IP in Fedora 27, CentOS and RHEL 7. For example, if you wish to monitor the installation via VNC, you’ll have to add VNC options as well as network options with static IP address. Let’s see how we can configure a static IP in different distros.
This will definitely cause loss of service once the IP changes. What's the 'with the grain' way to assign static network settings to a centos-7 host with ansible. You definitely don’t want its IP to keep changing once the DHCP lease time is over. I'm new to ansible and a little googling hasn't lead me quickly towards the right solution to my question.