Notes to Myself

Network configuration is fixed with “nmtui” tool.

Except for the nmtui tool, the ethernet ens33 configuration is changed as follows.

ens33 automatically gets IP over dhcp.

vim /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=ens33
UUID=1da2f14f-a29e-4a22-9d47-a847eac09d8a
ONBOOT=yes
DEVICE=ens33
DNS=10.255.255.101

ens34 static ip is given.

vim /etc/sysconfig/network-scripts/ifcfg-ens34
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
IPADDR=10.255.255.101
PREFIX=8
GATEWAY=10.255.255.1
DNS1=10.255.255.101
DOMAIN=osinetworks.net
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME=ens34
UUID=befd3561-d81f-4f6d-94d0-e252460375af
ONBOOT=yes
DEVICE=ens34

Gerekli değişiklikler yapıldıktan sonra network servisi restart edilir.
systemctl restart NetworkManager