Ubuntu 기본 명령어와 운영 상태 점검

lsb_release -a 2>/dev/null || cat /etc/os-release

uname -r

dpkg --print-architecture

systemd-detect-virt

hostnamectl

sudo dpkg --audit

apt-mark showhold

apt list --upgradable 2>/dev/null

systemctl status unattended-upgrades.service --no-pager -l

apt-cache policy

sudo netplan get

ip -br address

ip route

resolvectl status

networkctl list --no-pager

sudo ufw status verbose

sudo aa-status

timedatectl status

systemctl --failed --no-pager

sudo ss -lntup

#!/usr/bin/env sh
printf '%s
' '=== Ubuntu 기본 정보 ==='
lsb_release -a 2>/dev/null || cat /etc/os-release
printf 'Hostname: '; hostname -f 2>/dev/null || hostname
printf 'Kernel: '; uname -r
printf 'Architecture: '; dpkg --print-architecture 2>/dev/null || uname -m
printf 'Virtualization: '; systemd-detect-virt 2>/dev/null || printf '확인 불가
'
printf '%s
' '=== 자원 ==='
lscpu 2>/dev/null | grep -E '^(Architecture|CPU(s)|Core(s) per socket|Socket(s)|Model name):'
free -h
lsblk -e7 -o NAME,SIZE,TYPE,FSTYPE,MOUNTPOINT
df -hT
printf '%s
' '=== 네트워크 / DNS ==='
ip -br address
ip route
resolvectl status 2>/dev/null || cat /etc/resolv.conf
ss -lntup
printf '%s
' '=== Ubuntu 운영 상태 ==='
systemctl --failed --no-pager
sudo ufw status verbose 2>/dev/null || true
sudo aa-status 2>/dev/null || true
timedatectl status
printf '%s
' '=== 패키지 상태 ==='
sudo dpkg --audit
apt-mark showhold
printf '서버 용도/환경/주요 SW/보안 SW/HA: [담당자가 직접 입력]
'