UNBUNTU 架设DHCP服务器

来源：互联网发布：防范电信网络诈骗案例编辑：程序博客网时间：2024/05/21 08:30

1 到http://www.isc.org/software/dhcp/424-p2/download/dhcp-424-p2targz 下载dhcp-4.2.4-P2.tar.gz

2 解压dhcp-4.2.4-P2.tar.gz到/usr

root@xue-desktop:/home/xue/下载# tar -zxvf dhcp-4.2.4-P2.tar.gz -C /usr

3 配置编译
root@xue-desktop:/home/xue/下载# cd /usr
root@xue-desktop:/usr# ls
adobeflash dhcp-4.2.4-P2 games    java local share
bin         eclipse        include lib   sbin   src
root@xue-desktop:/usr# cd dhcp-4.2.4-P2/
root@xue-desktop:/usr/dhcp-4.2.4-P2# ./con
configure contrib/
root@xue-desktop:/usr/dhcp-4.2.4-P2# ./configure  =====>>配置
root@xue-desktop:/usr/dhcp-4.2.4-P2# make

root@xue-desktop:/usr/dhcp-4.2.4-P2#make install

root@xue-desktop:/usr/local/sbin#cd /usr/local/sbin/
root@xue-desktop:/usr/local/sbin# ls
dhclient dhcpd dhcrelay
root@xue-desktop:/usr/local/sbin#

可以看到，程序默认应该是安装到了/usr/local/sbin目录下，里面有三个文件，分别是dhclient，dhcpd，dhcrelay，分别是客户端，服务端和中转器

4 在/etc目录下建一个dhcpd.conf文件，即ipv4配置文件

root@xue-desktop:/usr/local/sbin#cat -n /etc/dhcpd.conf
     1   ddns-update-style       none;
     2   ignore client-updates;
     3   default-lease-time       259200;       #默认租借为3天
     4   max-lease-time           518400;
     5   option routers           192.168.1.128;
     6   option domain-name       "docotr.mo";
     7   option domain-name-servers 202.116.128.1, 202.116.128.2;
     8
     9   subnet 192.168.1.0 netmask 255.255.255.0
    10   {
    11       range 192.168.1.200 192.168.1.230;
    12
    13       host win7
    14       {
    15           hardware ethernet   00:30:67:3a:ca:32;
    16           fixed-address       192.168.1.253;
    17       }
    18   }
root@xue-desktop:/usr/local/sbin#

启动服务：root@xue-desktop:/usr/local/sbin# cd /usr/local/sbin
root@xue-desktop:/usr/local/sbin# ./dhcpd

Internet Systems Consortium DHCP Server 4.2.4-P2
Copyright 2004-2012 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
WARNING: Host declarations are global. They are not limited to the scope you declared them in.
Can't open lease database /var/db/dhcpd.leases: No such file or directory --
check for failed database rewrite attempt!
Please read the dhcpd.leases manual page if you
don't know what to do about this.

If you did not get this software from ftp.isc.org, please
get the latest from ftp.isc.org and install that before
requesting help.

If you did get this software from ftp.isc.org and have not
yet read the README, please read it before requesting help.
If you intend to request help from the dhcp-server@isc.org
mailing list, please read the section on the README about
submitting bug reports and requests for help.

Please do not under any circumstances send requests for
help directly to the authors of this software - please
send them to the appropriate mailing list as described in
the README file.

exiting.
root@xue-desktop:/usr/local/sbin#

这里上面说，找不到/var/db/dhcpd.leases 租约文件，那就建一个吧

root@xue-desktop:/usr/local/sbin# mkdir /var/db
root@xue-desktop:/usr/local/sbin# touch /var/db/dhcpd.leases
root@xue-desktop:/usr/local/sbin#
再来启动一下：

root@xue-desktop:/usr/local/sbin# ./dhcpd
Internet Systems Consortium DHCP Server 4.2.4-P2
Copyright 2004-2012 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
WARNING: Host declarations are global. They are not limited to the scope you declared them in.
Wrote 0 deleted host decls to leases file.
Wrote 0 new dynamic host decls to leases file.
Wrote 0 leases to leases file.
Listening on LPF/eth0/00:e0:4c:20:69:23/192.168.1.0/24
Sending on LPF/eth0/00:e0:4c:20:69:23/192.168.1.0/24
Sending on Socket/fallback/fallback-net
root@xue-desktop:/usr/local/sbin#
看到上面3行红色的就表示没错了。

来看一下服务是否启动了

root@xue-desktop:/usr/local/sbin# netstat -tulnp | grep dhcp
udp        0      0 0.0.0.0:67              0.0.0.0:*                           13904/dhcpd
udp        0      0 0.0.0.0:4079            0.0.0.0:*                           13904/dhcpd
udp6       0      0 :::13072                :::*                                13904/dhcpd
root@xue-desktop:/usr/local/sbin#

67 端口就是了。