리눅스 메일서버 확인

검색어 : 리눅스 메일서버 확인

리눅스메일서버가 정상인지 확인을 해야하는데...

우선 퍼티 실행 시켜서 

rpm -qa |grep sendmail

(|grep에서 '|'는 " shift + \ ")

이라고 치면 mail이 설치되어있는지 알 수 있다.

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http://cafe24blog.tistory.com/m/post/1978

[L] CentOS 5.x 에서 sendmail 설치하기

CentOS 5.x에서 sendmail 설치하기

#설치환경

- CentOS 5.8 x86 (64bit)

1. sendmail, dovecot 설치
- 먼저 rpm -qa |grep sendmail 명령으로 sendmail이 설치되어 있는지 확인 후 sendmail 패키지가 없으면 설치합니다
- Pop3를 사용할려면 imap 팩키지가 설치되어 있어야 합니다(dovecot). dovecot은 기존 imap에 비해 보안이 향상되었습니다.

[root@localhost /root]# rpm -qa | grep sendmail [root@localhost /root]#  [root@localhost /root]#  [root@localhost /root]# yum install sendmail-* Loaded plugins: fastestmirror Determining fastest mirrors  * base: ftp.daum.net  * extras: ftp.daum.net  * updates: ftp.daum.net base                                                                                                         | 1.1 kB     00:00      extras                                                                                                       | 2.1 kB     00:00      r1soft                                                                                                       |  951 B     00:00      updates                                                                                                      | 1.9 kB     00:00      updates/primary_db                                                                                           | 1.0 MB     00:00      Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package sendmail.x86_64 0:8.13.8-8.1.el5_7 set to be updated ---> Package sendmail-cf.x86_64 0:8.13.8-8.1.el5_7 set to be updated ---> Package sendmail-devel.i386 0:8.13.8-8.1.el5_7 set to be updated ---> Package sendmail-devel.x86_64 0:8.13.8-8.1.el5_7 set to be updated ---> Package sendmail-doc.x86_64 0:8.13.8-8.1.el5_7 set to be updated --> Finished Dependency Resolution Dependencies Resolved =============================================================================  Package                            Arch                       Version                               Repository                Size ============================================================================= Installing:  sendmail                           x86_64                     8.13.8-8.1.el5_7                      base                     637 k  sendmail-cf                        x86_64                     8.13.8-8.1.el5_7                      base                     306 k  sendmail-devel                     i386                       8.13.8-8.1.el5_7                      base                     128 k  sendmail-devel                     x86_64                     8.13.8-8.1.el5_7                      base                     133 k  sendmail-doc                       x86_64                     8.13.8-8.1.el5_7                      base                     665 k Transaction Summary ============================================================================= Install       5 Package(s) Upgrade       0 Package(s) Total download size: 1.8 M Is this ok [y/N]: y Downloading Packages: (1/5): sendmail-devel-8.13.8-8.1.el5_7.i386.rpm                                                              | 128 kB     00:00      (2/5): sendmail-devel-8.13.8-8.1.el5_7.x86_64.rpm                                                            | 133 kB     00:00      (3/5): sendmail-cf-8.13.8-8.1.el5_7.x86_64.rpm                                                               | 306 kB     00:00      (4/5): sendmail-8.13.8-8.1.el5_7.x86_64.rpm                                                                  | 637 kB     00:00      (5/5): sendmail-doc-8.13.8-8.1.el5_7.x86_64.rpm                                                              | 665 kB     00:00      ------------------------------------------------------------------------------------------------------------------------------------ Total                                                                                               2.2 MB/s | 1.8 MB     00:00      Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction   Installing     : sendmail                                                                                                     1/5    Installing     : sendmail-devel                                                                                               2/5    Installing     : sendmail-cf                                                                                                  3/5    Installing     : sendmail-doc                                                                                                 4/5    Installing     : sendmail-devel                                                                                               5/5  Installed:   sendmail.x86_64 0:8.13.8-8.1.el5_7           sendmail-cf.x86_64 0:8.13.8-8.1.el5_7      sendmail-devel.i386 0:8.13.8-8.1.el5_7       sendmail-devel.x86_64 0:8.13.8-8.1.el5_7     sendmail-doc.x86_64 0:8.13.8-8.1.el5_7     Complete! [root@localhost /root]#

[root@localhost /root]# rpm -qa | grep dovecot [root@localhost /root]#  [root@localhost /root]# yum install dovecot Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: ftp.daum.net  * extras: ftp.daum.net  * updates: ftp.daum.net Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package dovecot.x86_64 0:1.0.7-7.el5_7.1 set to be updated --> Finished Dependency Resolution Dependencies Resolved ========================================================================  Package                       Arch                         Version                                Repository                  Size ======================================================================== Installing:  dovecot                       x86_64                       1.0.7-7.el5_7.1                        base                       1.7 M Transaction Summary ======================================================================== Install       1 Package(s) Upgrade       0 Package(s) Total download size: 1.7 M Is this ok [y/N]: y Downloading Packages: dovecot-1.0.7-7.el5_7.1.x86_64.rpm                                                                           | 1.7 MB     00:00      Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction   Installing     : dovecot                                                                                                      1/1  Installed:   dovecot.x86_64 0:1.0.7-7.el5_7.1                                                                                                   Complete! [root@localhost /root]#

2. dovecot 설정

- /etc/dovecot.conf 파일을 다음과 같이 수정합니다.

# Base directory where to store runtime data. #base_dir = /var/run/dovecot/ # Protocols we want to be serving: imap imaps pop3 pop3s # If you only want to use dovecot-auth, you can set this to "none". protocols = imap imaps pop3 pop3s    --> 주석제거 # IP or host address where to listen in for connections. It's not currently # possible to specify multiple addresses. "*" listens in all IPv4 interfaces. # "[::]" listens in all IPv6 interfaces, but may also listen in all IPv4 # interfaces depending on the operating system. # # If you want to specify ports for each service, you will need to configure # these settings inside the protocol imap/pop3 { ... } section, so you can # specify different ports for IMAP/POP3. For example: #   protocol imap { #     listen = *:10143 #     ssl_listen = *:10943 #     .. #   } #   protocol pop3 { #     listen = *:10100 #     .. #   } listen = [::] ---> 주석제거 # Disable LOGIN command and all other plaintext authentications unless # SSL/TLS is used (LOGINDISABLED capability). Note that if the remote IP # matches the local IP (ie. you're connecting from the same computer), the # connection is considered secure and plaintext authentication is allowed. #disable_plaintext_auth = no

- 저장 후 dovecot 데몬을 실행합니다. 실행 후 포트를 체크합니다.

[root@localhost /root]# /etc/rc.d/init.d/dovecot start Dovecot Imap (을)를 시작 중:                               [  OK  ] [root@localhost /root]# netstat -nlpt Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name    tcp        0      0 0.0.0.0:993                 0.0.0.0:*                   LISTEN      364/dovecot          tcp        0      0 0.0.0.0:995                 0.0.0.0:*                   LISTEN      364/dovecot          tcp        0      0 0.0.0.0:110                 0.0.0.0:*                   LISTEN      364/dovecot          tcp        0      0 0.0.0.0:143                 0.0.0.0:*                   LISTEN      364/dovecot          tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      7377/httpd           tcp        0      0 0.0.0.0:21                  0.0.0.0:*                   LISTEN      1766/vsftpd          tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      1730/sshd            [root@localhost /root]#

3. Sendmail 설정

- /etc/mail/sendmail.mc 파일을 아래와 같이 수정합니다. 약 52라인과 116번째 라인에 있습니다.

dnl # PLAIN is the preferred plaintext authentication method and used by dnl # Mozilla Mail and Evolution, though Outlook Express and other MUAs do dnl # use LOGIN. Other mechanisms should be used if the connection is not dnl # guaranteed secure. dnl # Please remember that saslauthd needs to be running for AUTH.  dnl # TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl dnl # dnl # Rudimentary information on creating certificates for sendmail TLS: dnl #     cd /etc/pki/tls/certs; make sendmail.pem dnl # Complete usage: dnl #     make -C /etc/pki/tls/certs usage dnl # . . . . dnl # The following causes sendmail to only listen on the IPv4 loopback address dnl # 127.0.0.1 and not on any other network devices. Remove the loopback dnl # address restriction to accept email from the internet or intranet. dnl # DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA')dnl dnl # dnl # The following causes sendmail to additionally listen to port 587 for dnl # mail from MUAs that authenticate. Roaming users who can't reach their dnl # preferred sendmail daemon due to port 25 being blocked or redirected find dnl # this useful.

4. /etc/mail/local-host-names에 메일에서 사용될 도메인을 추가합니다

# local-host-names - include all aliases for your machine here. test.com

5. /etc/mail/virtusertable 파일에 메일 주소와 연결할 계정을 추가합니다.

test@test.com            kky

6. makemap hash 적용

[root@localhost /root]# makemap hash /etc/mail/virtusertable.db < /etc/mail/virtusertable

7. sendmail을 시작합니다.

[root@localhost /etc/mail]# /etc/rc.d/init.d/sendmail start sendmail (을)를 시작합니다:                                   [  OK  ] sm-client를 시작합니다:                                         [  OK  ] [root@localhost /etc/mail]#  [root@localhost /etc/mail]# netstat -nlpt Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name    tcp        0      0 0.0.0.0:993                 0.0.0.0:*                   LISTEN      364/dovecot          tcp        0      0 0.0.0.0:995                 0.0.0.0:*                   LISTEN      364/dovecot          tcp        0      0 0.0.0.0:110                 0.0.0.0:*                   LISTEN      364/dovecot          tcp        0      0 0.0.0.0:143                 0.0.0.0:*                   LISTEN      364/dovecot          tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      7377/httpd           tcp        0      0 0.0.0.0:21                  0.0.0.0:*                   LISTEN      1766/vsftpd          tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      1730/sshd            tcp        0      0 0.0.0.0:25                  0.0.0.0:*                   LISTEN      1529/sendmail        [root@localhost /etc/mail]#

http://kslovee.tistory.com/entry/sendmail-%EC%84%A4%EC%B9%98-%EB%B0%8F-%EA%B8%B0%EB%B3%B8%EC%84%A4%EC%A0%951

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