LAB

1. 啟動sendmail 並修改設定 ［iptables開放Port: 25)

2. 啟動dovecot並修改設定 [iptables開放Ports: 110, 143, 993, 995], create "dovecot.pem"

[root@server1 ~]# cd /etc/pki/tls/certs
[root@server1 certs]# make dovecot.pem
umask 77 ; \
PEM1=`/bin/mktemp /tmp/openssl.XXXXXX` ; \
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2. Mail Relays

%允許intranet: 192.168.0.0/24使用MTA(sendmail)寄信
#vi /etc/access

# by default we allow relaying from localhost...
Connect:localhost.localdomain RELAY
Connect:localhost RELAY
Connect:127.0.0.1 RELAY
Connect:192.168.0.0/24 RELAY
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Electronic Mail Services

(1)Service: Sendmail (MTA)

Packages: sendmail, sendmail-cf, sendmail-doc
Daemon: /usr/sbin/sendmail
Script: /etc/init.d/sendmail
Port: 25 (smtp)
Configuration: /etc/mail/sendmailmc, /etc/aliases, and others
Related: procmail(MDA), spamassassin, tcp_wrappers
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5. Squid Porxy Server

Package: squid
Daemon: /usr/sbin/squid
Script: /etc/init.d/squid
Port: /etc/init.d/squid
Configuration: /etc/squid/*

1. 安裝
#yum install squid
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4.Virtual Host (網站代管)


(1)建立目錄
#mkdir -p /var/www/html/virt1
#mkdir -p /var/www/html/virt2
並在virt1, virt2裡建立index.html檔案, 當然別忘了SElinux: #restorecon -R /var/www/html

(2)確認DNS是否正確, 增加DNS的A紀錄
[root@server118 ~]# dig virt1.example.com
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