dhcpd -d 檢測
DHCP
減小管理員的工作量
減少錯誤的可能
避免IP衝突
提高IP地址利用率
client(68) → dhcp server1 (udp:67)
DHCP原理:
1.client 廣播 2.server 響應 3. client 請求IP 4.server ACK確認,分配IP
搭配DHCP
1.yum -y install dhcp
rpm -ql dhcp
/etc/dhcp/dhcpd.conf --dhcp的主配置文件,默認情況下主配置文件是空的
2.通過模版創建主配置文件
cp /usr/share/doc/dhcp-4.1.1/dhcp.conf.sample /etc/dhcp/dhcp.conf
3.編輯主配置文件
vim /etc/dhcp/dhcp.conf
(全局變量)
option domain-name "kiki.org";
option domain-name-servers 202.96.128.86,8.8.8.8;
default-lease-time 600;
max-lease-time 7200;
log-facility local7;
(局部)
subnet 192.168.200.0 netmask 255.255.255.0 {
range 192.168.200.100 192.168.200.200;
option routers 192.168.200.1;
option subnet-mask 255.255.255.0;
}
+++++++++++++++++++++++++++++++++++++++== RHEL5
subnet 192.168.0.0 netmask 255.255.255.0 { --子作用域1
option routers 192.168.0.1; --默認網關
option subnet-mask 255.255.255.0; --子網掩碼
option time-offset -18000; --時區,東8區
range dynamic-bootp 192.168.0.128 192.168.0.254; --地址池
host server1 { --地址保留
hardware ethernet 12:34:56:78:AB:CD; --客戶機的MAC
fixed-address 192.168.0.200; --保留的IP地址
}
}
4.檢測配置文件語法 dhcpd -d
5. service dhcpd start chkconfig dhcpd on
DHCP
減小管理員的工作量
減少錯誤的可能
避免IP衝突
提高IP地址利用率
client(68) → dhcp server1 (udp:67)
DHCP原理:
1.client 廣播 2.server 響應 3. client 請求IP 4.server ACK確認,分配IP
搭配DHCP
1.yum -y install dhcp
rpm -ql dhcp
/etc/dhcp/dhcpd.conf --dhcp的主配置文件,默認情況下主配置文件是空的
2.通過模版創建主配置文件
cp /usr/share/doc/dhcp-4.1.1/dhcp.conf.sample /etc/dhcp/dhcp.conf
3.編輯主配置文件
vim /etc/dhcp/dhcp.conf
(全局變量)
option domain-name "kiki.org";
option domain-name-servers 202.96.128.86,8.8.8.8;
default-lease-time 600;
max-lease-time 7200;
log-facility local7;
(局部)
subnet 192.168.200.0 netmask 255.255.255.0 {
range 192.168.200.100 192.168.200.200;
option routers 192.168.200.1;
option subnet-mask 255.255.255.0;
}
+++++++++++++++++++++++++++++++++++++++== RHEL5
subnet 192.168.0.0 netmask 255.255.255.0 { --子作用域1
option routers 192.168.0.1; --默認網關
option subnet-mask 255.255.255.0; --子網掩碼
option time-offset -18000; --時區,東8區
range dynamic-bootp 192.168.0.128 192.168.0.254; --地址池
host server1 { --地址保留
hardware ethernet 12:34:56:78:AB:CD; --客戶機的MAC
fixed-address 192.168.0.200; --保留的IP地址
}
}
4.檢測配置文件語法 dhcpd -d
5. service dhcpd start chkconfig dhcpd on