DNS解析综合学习案例
1、用户需把/dev/myvg/mylv逻辑卷以支持磁盘配额的方式挂载到网页目录下
2、在网页目录下创建测试文件index.html，内容为用户名称，通过浏览器访问测试
3、创建用户账户，对LVM配置磁盘配额限制用户磁盘容量为软限制80M；硬限制100M、文件数量软限制为80个；硬限制为100个。
4、构建主从DNS域名解析环境
5、主从DNS都可将www.study.com域名解析为192.168.200.113
6、客户机可通过浏览器访问www.study.com得到WEB服务器相应内容
7、主域名服务器要同时担任缓存域名服务器功能
8、客户机通过nslookup域名测试工具可解析到www.jd.com等网站的域名解析结果
1~~3题
yum构建好
用yum安好mdadm
mdadm -C /dev/md5 -l 5 -n 3 -x 1 /dev/sdb[123]
pvcreate /dev/md5
vgcreate myvg /dev/md5
lvcreate -L +...G -n 3 -x 1 mylv myvg
mkfs -t ext4 /dev/myvg/mylv
mkdir /media
mount /dev/myvg/mylv /usr/local/apache/htdocs/
源代码安装apache
yum -y install gcc
tar xf htt.....(拉过来的安装包) -C /usr/src
cd /usr/src/htt.....
.configure --prefix=/usr/local/apache
make && make install
yum -y install lynx
vi /usr/local/apache/conf/htt.......
改好后
/usr/local/apache/conf/htt......
开始配
vim /etc/fstab
/dev/myvg/mylv
/usr/local/apache/htdocs ext4 defaults,usrquota,grpquota 0 0
umount -a
mount -a
quotacheck -a
quotaon -a
在/usr/local/apache/htdos 目录下创建文件测试
[root@localhost ~]# cd /usr/local/apache/htdocs/
[root@localhost htdocs]# vi index.htm
[root@localhost htdocs]# useradd laowang
[root@localhost htdocs]# passwd laowang
[root@localhost ~]# edquota -u laowang /dev/myvg/mylv
Disk quotas for user laowang (uid 1001):
Filesystem blocks soft hard inodes soft hard
/dev/mapper/myvg-mylv 0 81920 102
[root@localhost ~]# quotaon -auvg
4~~8题
所有服务器：
iptables -F
systemctl stop firewalld
setenforce 0
配置yum
主服务器：
[root@localhost ~]# yum -y install bind
[root@localhost ~]# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 192.168.100.10
nameserver 192.168.100.20
[root@localhost ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.100.10 ns1.crushlinux.com
192.168.100.20 ns2.crushlinux.com
[root@localhost ~]# cat /etc/named.conf
options {
listen-on port 53 { 192.168.200.111; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
recursing-file "/var/named/data/named.recursing";
secroots-file "/var/named/data/named.secroots";
allow-query { any; };
recursion yes;
};
zone "crushlinux.com" IN {
type master;
file "crushlinux.zheng";
allow-transfer { 192.168.200.112; };
};
zone "200.168.192.in-addr.arpa" IN {
type master;
file "crushlinux.fan";
allow-transfer { 192.168.200.112; };
};
[root@localhost ~]# cat /var/named/crushlinux.zheng
$TTL 86400
@ IN SOA crushlinux.com. admin.crushlinux.com. (
20190817
3H
15M
1W
1D
)
IN NS ns1.crushlinux.com.
IN NS ns2.crushlinux.com.
IN MX 10 mail.crushlinux.com.
ns1 IN A 192.168.200.111
ns2 IN A 192.168.200.112
mail IN A 192.168.200.113
www IN A 192.168.200.114
study IN A 192.168.200.115
* IN A 192.168.200.111
ftp IN CNAME www
[root@localhost ~]# cat /var/named/crushlinux.fan
$TTL 86400
@ IN SOA crushlinux.com. admin.crushlinux.com. (
20190817
3H
15M
1W
1D
)
IN NS ns1.crushlinux.com.
IN NS ns2.crushlinux.com.
IN MX 10 mail.crushlinux.com.
111 IN PTR ns1.crushlinux.com.
112 IN PTR ns2.crushlinux.com.
113 IN PTR mail.crushlinux.com.
114 IN PTR www.crushlinux.com.
115 IN PTR study.crushlinux.com.
111 IN PTR ns1.crushlinux.com.
[root@localhost ~]# chown :named /var/named/crushlinux.*
[root@localhost ~]# named-checkconf -z /etc/named.conf
[root@localhost ~]# named-checkzone crushlinux.com /var/named/crushlinux.zheng
[root@localhost ~]# named-checkzone crushlinux.com /var/named/crushlinux.fan
[root@localhost ~]# systemctl restart named
===============================================================================
从服务器：
[root@localhost ~]# yum -y install bind
[root@localhost ~]# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 192.168.200.111
nameserver 192.168.200.112
[root@localhost ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.200.111 ns1.crushlinux.com
192.168.200.112 ns2.crushlinux.com
[root@localhost ~]# cat /etc/named.conf
options {
directory "/var/named";
};
zone "crushlinux.com" IN {
type slave;
file "slaves/crushlinux.zheng";
masters { 192.168.200.111; };
};
zone "200.168.192.in-addr.arpa" IN {
type slave;
file "slaves/crushlinux.fan";
masters { 192.168.200.111; };
};
[root@localhost ~]# systemctl restart named
可以测试了
开一台测试机进行测试