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tech:linux:bionic [2019/08/11 06:26] (current) |
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| + | ====== Notes about Bionic Beaver, Ubuntu LTS 18.01 ====== | ||
| + | ===== Disable cloud-init ===== | ||
| + | <code bash> | ||
| + | sudo touch /etc/cloud/cloud-init.disabled | ||
| + | sudo echo "network: {config: disabled}" > /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg | ||
| + | </code> | ||
| + | Also update this | ||
| + | <code> | ||
| + | FCheck for the existence of /etc/cloud/cloud.cfg configuration. If the file exists edit the file and change the settings within: | ||
| + | FROM: | ||
| + | preserve_hostname: false | ||
| + | TO: | ||
| + | preserve_hostname: true | ||
| + | </code> | ||
| + | |||
| + | ===== Hostname Chage ===== | ||
| + | <code bash> | ||
| + | sudo hostnamectl set-hostname NEWHOSTNAME | ||
| + | </code> | ||
| + | |||
| + | ===== Network configuration (multiple networks) ===== | ||
| + | In this case a Bridge network on 192.168.1.1/24 and a host-only network on 192.168.56.1/24. Most important is the absence of the gateway4 line in the host-only network to ensure internet traffic goes via 192.168.1.1 gateway. | ||
| + | <code> | ||
| + | network: | ||
| + | version: 2 | ||
| + | renderer: networkd | ||
| + | ethernets: | ||
| + | enp0s3: | ||
| + | dhcp4: no | ||
| + | addresses: [192.168.1.60/24] | ||
| + | gateway4: 192.168.1.1 | ||
| + | nameservers: | ||
| + | addresses: [8.8.8.8,192.168.1.1] | ||
| + | search: [ example.org ] | ||
| + | enp0s8: | ||
| + | dhcp4: no | ||
| + | addresses: [192.168.56.60/24] | ||
| + | |||
| + | </code> | ||
| + | |||
| + | Routing table output | ||
| + | <code> | ||
| + | Kernel IP routing table | ||
| + | Destination Gateway Genmask Flags Metric Ref Use Iface | ||
| + | 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 enp0s3 | ||
| + | 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 enp0s3 | ||
| + | 192.168.56.0 0.0.0.0 255.255.255.0 U 0 0 0 enp0s8 | ||
| + | </code> | ||
