Mail Server Configuration
1)DNS
2)POSTFIX
3)DOVECOT
1)DNS CONFIGURATION
[root@cmj-itss-naveen ~]#yum install bind*
[root@cmj-itss-naveen ~]#vi /etc/sysconfig/network
change host name to dns.mumbai.com
[root@cmj-itss-naveen ~]#vi /etc/resolv.conf
domain mumbai.com
search mumbai.com
nameserver <IPADDRESS>
nameserver 10.210.8.36
The main configuration file for dns server isnamed.conf.By default this file is not created in /var/named/chroot/etc/directory.
[root@cmj-itss-naveen ~]# vi /var/named/chroot/etc/named.conf
options{
//listen-on {127.0.0.1; 10.210.8.36};
isten-on port 53 { 127.0.0.1;10.210.8.36;};
directory "/var/named/";
recursion no;
//allow-query { localhost;any; };
//forwarders { 8.8.8.8 };
//allow-transfer { 10.210.8.1 ; };
};
zone "mumbai.com" {
type master;
file "mumbai.com-fw";
};
zone "8.210.10.in-addr.arpa" {
type master;
file "8.210.10.in-addr.arpa.zone";
};
[root@cmj-itss-naveen ~]# vi /var/named/chroot/var/named/mumbai.com-fw
; Forward resolution for mumbai.com
;
@ IN SOA dns.mumbai.com root.dns.mumbai.com (
2000031601 ; serial number
7200 ; refresh (2hrs)
3600 ; retry (1hr)
151200 ; expire (1 week)
86400 ) ; default TTL
; define our name servers:
NS dns.mumbai.com.
; define our mail severs:
MX 10 mail.mumbai.com.
; define the contact information for this domain:
; TXT "Contact: Jim Smith"
; TXT "Great Guru of Linux"
; RP admin.mumbai.com. ;EMAIL ID
; define addresses and aliases:
dns A 10.210.8.36
gw A 10.210.8.1
gw A 10.210.8.1
ns CNAME dns
mail CNAME dns
www CNAME dns
[root@cmj-itss-naveen ~]# vi /var/named/chroot/var/named/8.210.10.in-addr.arpa.zone
; Reverse resolution for mumbai.com
;
@ IN SOA dns.mumbai.com root.dns.mumbai.com (
2000031601 ; serial number
7200 ; refresh (2hrs)
3600 ; retry (1hr)
151200 ; expire (1 week)
86400 ) ; default TTL
; define our name servers:
NS dns.mumbai.com.
1 PTR gw
1 PTR gw
36 PTR dns
36 PTR ns
36 PTR mail
36 PTR www
[root@cmj-itss-naveen ~]# /etc/init.d/named restart
Stopping named: . [ OK ]
Starting named: [ OK ]
check on http://www.techrepublic.com/article/setting-up-a-dns-server-under-linux-part-1-the-configuration/1052952
[root@cmj-itss-naveen ~]#vi /etc/postfix/mail.cf
# line 75: uncomment and specify hostname
myhostname =mail.mumbai.com
# line 83: uncomment and specify domain name
mydomain =mumbai.com
# line 99: uncomment
myorigin = $mydomain
# line 116: change
i net_interfaces =all
# line 119: change if you use only IPv4
inet_protocols =ipv4
# line 164: add
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
# line 264: uncomment and specify your LAN
mynetworks = 127.0.0.0/8,10.0.0.0/24
# line 419: uncomment (use Maildir)
home_mailbox = Maildir/
# line 545: uncomment, line 546: add
header_checks = regexp:/etc/postfix/header_checks
body_checks = regexp:/etc/postfix/body_checks
# line 571: add
smtpd_banner = $myhostname ESMTP
# add at the last line
# limit an email size 10M
message_size_limit = 10485760
# limit mailbox 1G
mailbox_size_limit = 1073741824
# for SMTP-Auth settings
smtpd_sasl_type = dovecot
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain = $myhostname
smtpd_client_restrictions = permit_mynetworks,reject_unknown_client,permit
smtpd_recipient_restrictions = permit_mynetworks,permit_auth_destination,permit_sasl_authenticated,reject
[root@cmj-itss-naveen ~]#vi/etc/postfix/header_checks
# add at the head
# reject if email address is empty
/^From:.*<#.*@.*>/ REJECT
/^Return-Path:.*<#.*@.*>/ REJECT
[root@cmj-itss-naveen ~]#vi /etc/postfix/body_checks
# reject if includes 'example.com' in mail body
/^(|[^>].*)example.com/ REJECT
[root@cmj-itss-naveen ~]#/etc/rc.d/init.d/postfix start
[ OK]
[root@cmj-itss-naveen ~]#chkconfig postfix on
3)DOVECOT CONFIGURATION
[root@cmj-itss-naveen ~]#yum-y install dovecot
[root@cmj-itss-naveen ~]#vi /etc/dovecot/dovecot.conf
# line 31: change ( if not use IPv6 )
listen =*
[root@cmj-itss-naveen ~]#vi /etc/dovecot/conf.d/10-auth.conf
# line 9: uncomment and change ( allow plain text auth )
disable_plaintext_auth =no
# line 97: add
auth_mechanisms = plain login
[root@cmj-itss-naveen ~]# vi /etc/dovecot/conf.d/10-mail.conf
# line 30: uncomment and add
mail_location =maildir:~/Maildir
[root@cmj-itss-naveen ~]#vi /etc/dovecot/conf.d/10-master.conf
# line 84-86: uncomment and add
# Postfix smtp-auth
unix_listener /var/spool/postfix/private/auth {
mode = 0666
user = postfix # add
group = postfix # add
}
[root@cmj-itss-naveen ~]# /etc/rc.d/init.d/dovecot start
Starting Dovecot Imap:
[ OK ]
[root@cmj-itss-naveen ~]# chkconfigdovecot on
check on http://www.server-world.info/en/note?os=CentOS_6&p=mail&f=2
http://k2-rnd.blogspot.in/2012/04/how-to-setup-postfix-dovecot-mail.html
http://www.wtuto.com/redhat/postfix-r6.html
http://www.cyberciti.biz/faq/linux-unix-bsd-postfix-forward-email-to-another-account/
No comments:
Post a Comment