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[20210119] Linux 25번 포트 SMTP(postfix) 정지 #15

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JuHyun419 opened this issue Jan 19, 2021 · 0 comments
Open

[20210119] Linux 25번 포트 SMTP(postfix) 정지 #15

JuHyun419 opened this issue Jan 19, 2021 · 0 comments
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@JuHyun419
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Linux 25번 Port

  • SMTP 서비스는 메일 전송 담당(불필요)
  • $ (sudo) netstat -ntlp | grep 25
  • $ (sudo) fuser 25/tcp ===> 7464
  • $ (sudo) ls -l /proc/7464/exe

Outputs

  • lr-xr-xr 1 root root 0 Oct 2 14:30 /proc/7464/exe -> /usr/libexec/postfix/master

Unit File 목록 확인

  • $ systemctl list-unit-files
  • 위 목록에서 postfix.service 파일 존재(enabled)

postfix 서비스 중지

  • $ systemctel stop postfix.service(실행하려면 stop 대신 start)

netstat 확인 시 제거

참고

@JuHyun419 JuHyun419 changed the title [20210118] Linux 25번 포트 SMTP 서비스 [20210119] Linux 25번 포트 SMTP 서비스 Jan 19, 2021
@JuHyun419 JuHyun419 changed the title [20210119] Linux 25번 포트 SMTP 서비스 [20210119] Linux 25번 포트 SMTP 정지(postfix) Jan 19, 2021
@JuHyun419 JuHyun419 changed the title [20210119] Linux 25번 포트 SMTP 정지(postfix) [20210119] Linux 25번 포트 SMTP(postfix) 정지 Jan 19, 2021
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