1. Hostname

Hostname adalah nama/identitas server di jaringan.

root@srv1:~# hostnamectl set-hostname instance-01
root@srv1:~# exec $SHELL

root@instance-01:~#
            

2. Domain Name (FQDN)

Domain name melengkapi hostname menjadi FQDN.

root@instance-01:~# nano /etc/hosts

127.0.0.1 instance-01.lab.local instance-01

root@instance-01:~# hostname -d
lab.local

root@instance-01:~# hostname -f
instance-01.lab.local
            

3. Timezone

Mengatur zona waktu sistem.

root@instance-01:~# timedatectl set-timezone Asia/Jakarta

root@instance-01:~# timedatectl
Local time: Tue 2025-03-18 17:52:02 WIB
Time zone: Asia/Jakarta (WIB, +0700)

root@instance-01:~# timedatectl list-timezones
            

4. Basic Command

Perintah dasar Linux untuk navigasi dan manajemen file.

# Navigasi
pwd
cd /home
ls

# File & folder
mkdir test
cd test
touch file.txt

# Isi file
echo "Hello World" > file.txt
cat file.txt

# Hapus
rm file.txt
rm -r folder

# Permission
chmod 755 script.sh
chown user:group file.txt

# Copy & rename
cp test.txt test_cp.txt
mv test_cp.txt test_mv.txt
            

5. Output & Redirection

echo test

echo test > test_output.txt
cat test_output.txt

echo output >> test_output.txt
cat test_output.txt
            

6. Nano Editor

nano file.txt

Ctrl + S  (Simpan)
Ctrl + X  (Keluar)
            

7. IP Address

Konfigurasi IP statis.

nano /etc/network/interfaces

iface eth0 inet static
address 192.168.1.10
netmask 255.255.255.0
gateway 192.168.1.1

systemctl restart networking
            

8. Systemctl

systemctl restart nginx
systemctl status nginx
systemctl reload nginx
            

9. Brace Expansion

echo {1..10}
echo {1..10..2}

touch file{1..5}.txt
mkdir folder{1..5}
            

10. Studi Kasus

hostnamectl set-hostname instance-01
exec $SHELL

timedatectl set-timezone Asia/Jakarta

mkdir -p /srv/app/folder{01..10}

touch /srv/app/folder{01..10}/test.txt