1、郵件服務器 使用[email protected]給[email protected]用戶發一封郵件,內容爲you jump,i jump.
兩臺虛擬機:rhel7、rhel8.2
兩臺虛擬機均需要做的操作:
(1)安裝包、分別創建rose、jack用戶:
[[email protected] ~]# yum install postfix -y
[[email protected] ~]# yum install dovecot -y
[[email protected] ~]# yum install cyrus-sasl* -y
(2)配置文件內容:
[[email protected] ~]# vim /etc/postfix/main.cf
myhostname = mail.qq(163).com
mydomain = qq(163).com
myorigin = $mydomain
inet_interfaces = all
mydestination = $myhostname, $mydomain
mynetworks = 192.168.38.0/24
relay_domains = $mydestination
開啓SASL認證:
broken_sasl_auth_clients = yes
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
[[email protected] ~]# vim /etc/dovecot/dovecot.conf
protocols = imap pop3 lmtp
login_trusted_networks = 192.168.38.0/24
[[email protected] ~]# vim /etc/dovecot/conf.d/10-mail.conf
mail_location = mbox:~/mail:INBOX=/var/mail/%u
(3)重啓服務、關閉防火牆、設置權限
[[email protected] ~]# systemctl restart postfix
[[email protected] ~]# systemctl restart dovecot
[[email protected] ~]# systemctl restart saslauthd
[[email protected] ~]# systemctl stop firewalld
[[email protected] ~]# setenforce 0
[[email protected] ~]# chmod 0600 /var/mail/*
(4)配置DNS服務器(將192.168.38.129做爲DNS服務器)
[[email protected] ~]# yum install bind -y
[[email protected] ~]# vim /etc/named.conf
[[email protected] ~]# vim /var/named/named.qq.com
[[email protected] ~]# vim /var/named/named.163.com
[[email protected] ~]# systemctl restart
修改兩臺虛擬機的DNS服務器的ip地址爲自己搭建的DNS服務器地址
[[email protected] ~]# vim /etc/resolv.conf
測試結果:
2、請按下列要求創建一個新的邏輯卷: 創建一個名爲 datastore 的卷組vg,卷組的PE尺寸爲 16 MiB; 邏輯卷lv的名字爲 database ,所屬卷組爲 datastore,該邏輯卷由 50 個 PE 組成; 將新建的邏輯卷格式化爲 xfs 文件系統,要求系統啓動時,該邏輯卷能被自動掛載到; /mnt/database 目錄。
(1)創建一個名爲 datastore 的卷組vg,卷組的PE尺寸爲 16 MiB;
[[email protected] ~]# vgcreate -s 16M datastore /dev/sdb1 /dev/sdb5 /dev/sdc5
(2)邏輯卷lv的名字爲 database ,所屬卷組爲 datastore,該邏輯卷由 50 個 PE 組成;
[[email protected] ~]# lvcreate -l 50 -n database datastore
(3)將新建的邏輯卷格式化爲 xfs 文件系統,要求系統啓動時,該邏輯卷能被自動掛載到; /mnt/database 目錄。