Linux 로그 분석하려는데 표준 시간 korea로 바꾸기

┌──(kali㉿kali)-[~]
└─$ if test -f /var/log/auth.log; then sudo tail -n 20 /var/log/auth.log; else echo '/var/log/auth.log not found; using journalctl -u ssh'; sudo journalctl -u ssh --since '30 minutes ago' --no-pager | tail -20; fi
/var/log/auth.log not found; using journalctl -u ssh
Jun 23 20:10:05 kali sshd-session[5555]: pam_unix(sshd:session): session opened for user kali(uid=1000) by kali(uid=0)

로그를 까봤는데 시간이 이상해서

sudo timedatectl set-timezone Asia/Seoul

위 명령어로 표준시간을 바꾸었다. 

┌──(kali㉿kali)-[~]
└─$ timedatectl
               Local time: Wed 2026-06-24 09:39:33 KST
           Universal time: Wed 2026-06-24 00:39:33 UTC
                 RTC time: Wed 2026-06-24 00:39:34
                Time zone: Asia/Seoul (KST, +0900)
System clock synchronized: yes
              NTP service: active
          RTC in local TZ: no
                                                                                                      
┌──(kali㉿kali)-[~]
└─$ if test -f /var/log/auth.log; then sudo tail -n 20 /var/log/auth.log; else echo '/var/log/auth.log not found; using journalctl -u ssh'; sudo journalctl -u ssh --since '30 minutes ago' --no-pager | tail -20; fi
/var/log/auth.log not found; using journalctl -u ssh
Jun 24 09:10:05 kali sshd-session[5555]: pam_unix(sshd:session): session opened for user kali(uid=1000) by kali(uid=0)

음 잘 나오는군