개발노트
[Linux] Sendmail 삭제 후 재설치
phpsendmaillinuxcentos
Server
2024.03.26 330 회 읽음
Server
24.03.26 330
서버 이전 후에 PHP에서 메일을 발송해보니 오류가 있어 상태를 확인해 보니 아래와 같은 에러 코드가 표시되고 있습니다.
원인을 찾는 것도 좋지만 일단은 삭제하고 재 설치하려고 합니다.
# service sendmail status
Redirecting to /bin/systemctl status sendmail.service
● sendmail.service - Sendmail Mail Transport Agent
Loaded: loaded (/usr/lib/systemd/system/sendmail.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2024-03-26 10:46:13 KST; 41s ago
Process: 543 ExecStart=/usr/sbin/sendmail -bd $SENDMAIL_OPTS $SENDMAIL_OPTARG (code=exited, status=0/SUCCESS)
Process: 536 ExecStartPre=/etc/mail/make aliases (code=exited, status=0/SUCCESS)
Process: 534 ExecStartPre=/etc/mail/make (code=exited, status=0/SUCCESS)
Main PID: 545 (sendmail)
Tasks: 1
CGroup: /system.slice/sendmail.service
└─545 /usr/sbin/sendmail -bd -q1h
Mar 26 10:46:33 gtfun.net sendmail[545]: NOQUEUE: SYSERR(root): opendaemonsocket: daemon MTA: cannot bind: Address already in use
Mar 26 10:46:33 gtfun.net sendmail[545]: daemon MTA: problem creating SMTP socket
Mar 26 10:46:38 gtfun.net sendmail[545]: NOQUEUE: SYSERR(root): opendaemonsocket: daemon MTA: cannot bind: Address already in use
Mar 26 10:46:38 gtfun.net sendmail[545]: daemon MTA: problem creating SMTP socket
Mar 26 10:46:43 gtfun.net sendmail[545]: NOQUEUE: SYSERR(root): opendaemonsocket: daemon MTA: cannot bind: Address already in use
Mar 26 10:46:43 gtfun.net sendmail[545]: daemon MTA: problem creating SMTP socket
Mar 26 10:46:48 gtfun.net sendmail[545]: NOQUEUE: SYSERR(root): opendaemonsocket: daemon MTA: cannot bind: Address already in use
Mar 26 10:46:48 gtfun.net sendmail[545]: daemon MTA: problem creating SMTP socket
Mar 26 10:46:53 gtfun.net sendmail[545]: NOQUEUE: SYSERR(root): opendaemonsocket: daemon MTA: cannot bind: Address already in use
Mar 26 10:46:53 gtfun.net sendmail[545]: daemon MTA: problem creating SMTP socket
서비스를 종료 합니다.
# service sendmail stop
먼저 설치 여부를 확인합니다.
# rpm -qa | grep sendmail
sendmail-cf-8.14.7-6.el7.noarch
sendmail-8.14.7-6.el7.x86_64
yum erase sendmail 명령어를 이용하여 삭제 해 봅니다.
# yum erase sendmail
Loaded plugins: fastestmirror
Resolving Dependencies
--> Running transaction check
---> Package sendmail.x86_64 0:8.14.7-6.el7 will be erased
--> Processing Dependency: sendmail = 8.14.7-6.el7 for package: sendmail-cf-8.14.7-6.el7.noarch
--> Running transaction check
---> Package sendmail-cf.noarch 0:8.14.7-6.el7 will be erased
--> Finished Dependency Resolution
Dependencies Resolved
===============================================================================================================================================================
Package Arch Version Repository Size
===============================================================================================================================================================
Removing:
sendmail x86_64 8.14.7-6.el7 @base 1.7 M
Removing for dependencies:
sendmail-cf noarch 8.14.7-6.el7 @base 938 k
Transaction Summary
===============================================================================================================================================================
Remove 1 Package (+1 Dependent package)
Installed size: 2.6 M
Is this ok [y/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Erasing : sendmail-cf-8.14.7-6.el7.noarch 1/2
Erasing : sendmail-8.14.7-6.el7.x86_64 2/2
warning: /etc/mail/trusted-users saved as /etc/mail/trusted-users.rpmsave
warning: /etc/mail/sendmail.mc saved as /etc/mail/sendmail.mc.rpmsave
warning: /etc/mail/sendmail.cf saved as /etc/mail/sendmail.cf.rpmsave
warning: /etc/mail/local-host-names saved as /etc/mail/local-host-names.rpmsave
warning: /etc/mail/access saved as /etc/mail/access.rpmsave
Verifying : sendmail-cf-8.14.7-6.el7.noarch 1/2
Verifying : sendmail-8.14.7-6.el7.x86_64 2/2
Removed:
sendmail.x86_64 0:8.14.7-6.el7
Dependency Removed:
sendmail-cf.noarch 0:8.14.7-6.el7
Complete!
Sendmail 설치
1. 설치하기
yum install sendmail sendmail-cf 명령어를 이용하여 설치 합니다.
# yum install sendmail sendmail-cf
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.kakao.com
* epel: mirror-nrt.yuki.net.uk
* extras: mirror.kakao.com
* remi-php74: cdn.centos.no
* remi-safe: cdn.centos.no
* updates: mirror.kakao.com
Resolving Dependencies
--> Running transaction check
---> Package sendmail.x86_64 0:8.14.7-6.el7 will be installed
---> Package sendmail-cf.noarch 0:8.14.7-6.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
===============================================================================================================================================================
Package Arch Version Repository Size
===============================================================================================================================================================
Installing:
sendmail x86_64 8.14.7-6.el7 base 737 k
sendmail-cf noarch 8.14.7-6.el7 base 186 k
Transaction Summary
===============================================================================================================================================================
Install 2 Packages
Total download size: 923 k
Installed size: 2.6 M
Is this ok [y/d/N]: y
Downloading packages:
(1/2): sendmail-cf-8.14.7-6.el7.noarch.rpm | 186 kB 00:00:00
(2/2): sendmail-8.14.7-6.el7.x86_64.rpm | 737 kB 00:00:00
---------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 2.9 MB/s | 923 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : sendmail-8.14.7-6.el7.x86_64 1/2
Installing : sendmail-cf-8.14.7-6.el7.noarch 2/2
Verifying : sendmail-cf-8.14.7-6.el7.noarch 1/2
Verifying : sendmail-8.14.7-6.el7.x86_64 2/2
Installed:
sendmail.x86_64 0:8.14.7-6.el7 sendmail-cf.noarch 0:8.14.7-6.el7
Complete!
서비스를 활성화 해 줍니다.
systemctl enable sendmail
2. 환경 값 수정하기
/etc/mail/sendmail.mc 파일을 수정하기 위해 해당 파일을 열고 아래 52,53 라인과 116 라인 부분의 주석을 해제하고 동일하게 수정 해 줍니다.
#52 TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
#53 define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
# 116 DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA')dnl
# vi /etc/mail/sendmail.mc
# 52 line TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl # 53 line define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl # 116 DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA')dnl
# m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf
/etc/mail/access 파일으 열어서 허용할 도메인을 입력합니다.
# vi /etc/mail/access
# Check the /usr/share/doc/sendmail/README.cf file for a description
# of the format of this file. (search for access_db in that file)
# The /usr/share/doc/sendmail/README.cf is part of the sendmail-doc
# package.
#
# If you want to use AuthInfo with "M:PLAIN LOGIN", make sure to have the
# cyrus-sasl-plain package installed.
#
# By default we allow relaying from localhost...
Connect:localhost.localdomain RELAY
Connect:localhost RELAY
Connect:127.0.0.1 RELAY Connect:gtfun.com RELAY Connect:gtfun.net RELAY Connect:mininam.com RELAY
설정한 정보를 저장 해줍니다.
makemap hash /etc/mail/access < /etc/mail/access
이메일 서비스를 시작 해 줍니다.
# systemctl start sendmail
메일이 발송되지 않을 때에는 포트가 열려있는지 확인합니다.
# netstat -nltp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 6939/sendmail: acce
tcp 0 0 0.0.0.0:4049 0.0.0.0:* LISTEN 624/perl
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1033/sshd
tcp6 0 0 :::443 :::* LISTEN 1680/httpd
tcp6 0 0 :::3306 :::* LISTEN 7351/mariadbd
tcp6 0 0 :::80 :::* LISTEN 1680/httpd
