Fedora36: Initial settings

[root@www ~]# df -h
filesys                    size    used  remaining %used mount location
devtmpfs                   3.9G      0  3.9G     0% /dev
tmpfs                      3.9G      0  3.9G     0% /dev/shm
tmpfs                      3.9G   1.1M  3.9G     1% /run
/dev/fedora/fedora-root     15G   1.9G   14G    13% / #Expansion
tmpfs                      3.9G   4.0K  3.9G     1% /tmp
/dev/sda1                  1014M  194M  821M    20% /boot
tmpfs                      783M      0  783M     0% /run/user/1000

The root file system is 15Gb by default, so expand it.
Extend the root logical volume at the top level ( / ) you recorded. (Please change to your own file path in the above form.)

[webmaster@www ~]$ sudo lvextend -l +100%FREE /dev/fedora/fedora-root

Extend the topmost ( / ) root filesystem you recorded.

[webmaster@www ~]$ sudo xfs_growfs /dev/fedora/fedora-root

Create a general user.

Log in to root user.

[webmaster@www ~]$ su -
[root@www ~]#

Create a general user.

[root@www ~]# useradd ユーザー名

Set your password.

[root@www ~]# passwd ユーザー名
New Password:
Re-enter new password:

Limit users who can become root.

Limit users who can become root.

[root@www ~]# usermod -G wheel webmaster
[root@www ~]# vi /etc/pam.d/su

Remove # to uncomment

auth            sufficient      pam_rootok.so
# Uncomment the following line to implicitly trust users in the "wheel" group.
#auth           sufficient      pam_wheel.so trust use_uid
# Uncomment the following line to require a user to be in the "wheel" group.
auth            required        pam_wheel.so use_uid
auth            substack        system-auth
auth            include         postlogin
account         sufficient      pam_succeed_if.so uid = 0 use_uid quiet
account         include         system-auth
password        include         system-auth
session         include         system-auth
session         include         postlogin
session         optional        pam_xauth.so

Deletion of general users.

If you want to delete only the user

[root@www ~]# userdel ユーザー名

If you also want to delete your home directory

[root@www ~]# userdel -r ユーザー名

Disable firewall and SELinux.

Stop the firewall service.

[root@www ~]# systemctl stop firewalld

Disable the autostart setting.

[root@www ~]# systemctl disable firewalld
rm '/etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service'
rm '/etc/systemd/system/basic.target.wants/firewalld.service'

Disable SELinux.

[root@www ~]# vi /etc/selinux/config

Change it to disabled.

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled #変更
# SELINUXTYPE= can take one of these two values:
# targeted - Targeted processes are protected,
# minimum - Modification of targeted policy. Only selected processes are protected.
# mls - Multi Level Security protection.


[root@www ~]# reboot

Network settings.

IPv6 を無効にします。

[root@www ~]# vi /etc/default/grub

Line 6: Add “ipv6.disable=1”.

GRUB_CMDLINE_LINUX="ipv6.disable=1 rd.lvm.lv=centos/root..

reflect the changes.

[root@www ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
[root@www ~]# reboot

MAC address(例:0c:2e:48:2b:dg:f4)

Server IP address:

System modernization.

Modernize your system.

[root@www ~]# dnf -y update

Add module.

Install Node.js 14.

[root@www ~]# dnf module -y install nodejs:14

Check the module.

[root@www ~]# node -v

Reset Node.js.

[root@www ~]# dnf module reset nodejs

Install Node.js 16.

[root@www ~]# dnf module enable nodejs:16
[root@www ~]# dnf module -y install nodejs:16/common

Check the module.

[root@www ~]# node -v

Package auto-update settings.

Set dnf-automatic.

[root@www ~]# dnf install dnf-automatic dnf-utils -y


[root@www ~]# vi /etc/dnf/automatic.conf

Enable automatic download & automatic update

# Whether updates should be applied when they are available, by
# dnf-automatic.timer. notifyonly.timer, download.timer and
# install.timer override this setting.
apply_updates = yes #change

Package auto-update auto-start settings

[root@www ~]# systemctl enable --now dnf-automatic.timer

Web management console settings.

Enable Cockpit to make the web management console available.

[root@www ~]# systemctl enable --now cockpit.socket
[root@www ~]# ss -napt
State Recv-Q Send-Q Local Address:Port Peer Address:Port 
LISTEN 0 128* users:(("sshd",pid=831,fd=6)) 
LISTEN 0 128 [::]:22 [::]:* users:(("sshd",pid=831,fd=8)) 
LISTEN 0 128 *:9090 *:* users:(("systemd",pid=1,fd=24)) 

Access the web management console using a web browser on the client PC and log in as “root”.

Vim (text editor) settings.

Install Vim (text editor).

[root@www ~]# dnf -y install vim-enhanced

Applies a command alias.

[root@www ~]# vi /etc/profile

Append to the last line.

alias vi='vim'

reflect the changes.

[root@www ~]# source /etc/profile

Configure vim.

[root@www ~]# vi ~/.vimrc

Display line numbers (The server settings are explained using line numbers.)

set number

Configure sudo (root privileges).

Set root privileges to a specific user.

[root@www ~]# visudo

Append to the last line.

webmaster    ALL=(ALL)       ALL