ubuntu 18 신규 설치

ubuntu 18 신규 설치

 

1> root 계정 활성화

osboxes@osboxes:~$ sudo passwd root
[sudo] password for osboxes:
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
osboxes@osboxes:~$

 

2> sudo 계정 생성

osboxes@osboxes:~$ adduser firstpw
Adding user `firstpw' ...
Adding new group `firstpw' (1002) ...
Adding new user `firstpw' (1002) with group `firstpw' ...
Creating home directory `/home/firstpw' ...
Copying files from `/etc/skel' ...
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
Changing the user information for firstpw
Enter the new value, or press ENTER for the default
        Full Name []:
        Room Number []:
        Work Phone []:
        Home Phone []:
        Other []:
Is the information correct? [Y/n]
root@osboxes:~# usermod -a -G sudo firstpw
root@osboxes:~#

 

3> ssh 서버 설정 및 root 접속 허용

root@osboxes:~# vi /etc/ssh/sshd_config

 

root@osboxes:~# xifconfig enp0s3 down
root@osboxes:~# xifconfig enp0s3 up
root@osboxes:~#

/etc/ssh/sshd_config

PermitRootLogin yes
PasswordAuthentication yes

 

 

4> 고정 IP 설정 - Bridge Mode

root@osboxes:~# vi /etc/netplan/01-network-manager-all.yaml

root@osboxes:~# netplan apply

root@osboxes:~# 

/etc/netplan/01-network-manager-all.yaml

network:
    ethernets:
        enp0s3:
           addresses: [192.168.88.143/24]
           gateway4: 192.168.88.254
           nameservers:
               addresses: [168.126.63.1,8.8.8.8]
           dhcp4: no
        eth1:
           dhcp4: true
    version: 2

 

5> ifconfig 설치

apt install net-tools -y