Build a Linux Mail Gateway and a Mail System

Article Title: Build a Linux Mail Gateway and mail system. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

Environment: vmware RedHat EL3 x 3

ServerA ip: 192.168.0.231 Mail Gateway server DNS server

ServerB ip: 192.168.0.20.email system server

ServerC ip: 192.168.0.233 email system server

Lab domain:

ServerB: wllhc.org ServerC: thiz.net

Purpose:

The email users in ServerB and ServerC send and receive emails from each other using their own email servers and send them through the gateway, and use ServerA to resolve the recipient's IP address

1. Install the Mail Gateway on ServerA and configure the DNS of the Mail Server

1. Install the Gateway

# Wget http: // 192.168.0.11/pkg/mail_gw/1026/gw_3.6_0502.16.tar.gz/opt

# Tar-zxvf gw_3.6_0502.16.tar.gz

# Cd gw_3.6

#./Install. sh

Build a Mail Gateway and a Mail System

Environment: vmware RedHat EL3 x 3

ServerA ip: 192.168.0.231 Mail Gateway server DNS server

ServerB ip: 192.168.0.20.email system server

ServerC ip: 192.168.0.233 email system server

Lab domain:

ServerB: wllhc.org ServerC: thiz.net

Purpose:

The email users in ServerB and ServerC send and receive emails from each other using their own email servers and send them through the gateway, and use ServerA to resolve the recipient's IP address

1. Install the Gateway

# Wget http: // 192.168.0.11/pkg/mail_gw/1026/gw_3.6_0502.16.tar.gz/opt

# Tar-zxvf gw_3.6_0502.16.tar.gz

# Cd gw_3.6

#./Install. sh

2. Configure DNS

# Vi/etc/named. conf

Options {

Directory "/var/named ";

};

Zone "." IN {

Type hint;

File "named. root ";

};

Zone "localhost" IN {

Type master;

File "localhost. zone ";

Allow-update {none ;};

};

Zone "0.0.127.in-addr. arpa" IN {

Type master;

File "named. local ";

Allow-update {none ;};

};

Zone "wllhc.org" IN {

Type master;

File "wllhc. zone ";

Allow-update {none ;};

};

Zone "0.168.192.in-addr. arpa" IN {

Type master;

File "0.168.192 ";

Allow-update {none ;};

};

Zone "thiz.net" IN {

Type master;

File "thiz. zone ";

Allow-update {none ;};

};

Controls {

Inet 127.0.0.1 port 953

Allow {127.0.0.1;} keys {"rndc-key ";};

};

3, # vi/var/named/wllhc. zone

$ TTL 86400

@ In soa wllhc.org. root.wllhc.org .(

42; serial (d. adams)

3 H; refresh

15 M; retry

1 W; expiry

1D); minimum

In ns wllhc.org.

In mx 1 mail.wllhc.org.

Www in a 192.168.0.20.

Mail in a 192.168.0.20.

@ In a 192.168.0.20.

4, # vi/var/named/thiz. zone

$ TTL 86400

@ In soa thiz.net. root.thiz.net .(

42; serial (d. adams)

3 H; refresh

15 M; retry

1 W; expiry

1D); minimum

In ns thiz.net.

In mx 1 mail.thiz.net.

Www in a 192.168.0.233

Mail in a 192.168.0.233

@ In a 192.168.0.233

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