下面以Kali Linux为例,演示
获取IP
地址的方法 (1)设置网络接口为自动获取IP地址。在Kali Linux的收藏夹中
单击图标,将显示所有的程序,如图1.8所示。(2)单击“设置”图标,将打开“设置”窗口,如图1.9所示。(3)选择“网络”选项,单击有线连接中的齿轮按钮,将显示“有线”对话框,如图1.10所示。(4)勾选“自动连接”复选框。然后,单击IPv4标签,将显示IPv4选项卡,如图1.11所示。(5)在该界面选择“自动(DHCP)”选项。然后,单击“应用”按钮。接下来,就可以请求获取IP地址了。执行命令如下所示: root@daxueba:~# dhclient eth0 –d Internet Systems Consortium DHCP Client 4.3.5 Copyright 2004-2016 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth0/00:0c:29:25:89:95 Sending on LPF/eth0/00:0c:29:25:89:95 Sending on Socket/fallback DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4 DHCPREQUEST of 192.168.0.12 on eth0 to 255.255.255.255 port 67 DHCPOFFER of 192.168.0.12 from 192.168.0.10 DHCPACK of 192.168.0.12 from 192.168.0.100 bound to 192.168.0.12 -- renewal in 277 seconds. 从输出的信息中,可以看到成功获取到IP地址192.168.0.12。由此可以说明,搭建的DHCP服务测试成功。此时,用户查看地址租约文件dhcpd.leases,也可以看到分配的IP地址。如下所示: root@daxueba:~# cat /var/lib/dhcp/dhcpd.leases # The format of this file is documented in the dhcpd.leases(5) manual page. # This lease file was written by isc-dhcp-4.3.5 # authoring-byte-order entry is generated, DO NOT DELETE authoring-byte-order little-endian lease 192.168.0.10 { starts 1 2018/07/02 10:15:00 ends 1 2018/07/02 10:25:00 cltt 1 2018/07/02 10:15:00 binding state active next binding state free rewind binding state free hardware ethernet 00:0c:29:5c:ae:aa client-hostname "daxueba" } lease 192.168.0.11 { starts 1 2018/07/02 10:18:17 ends 1 2018/07/02 10:28:17 cltt 1 2018/07/02 10:18:17 binding state active next binding state free rewind binding state free hardware ethernet 00:0c:29:99:92:4f uid "\001\000\014)\231\222O" set vendor-class-identifier = "MSFT 5.0" client-hostname "Test" } lease 192.168.0.12 { starts 1 2018/07/02 10:34:56 ends 1 2018/07/02 10:44:56 cltt 1 2018/07/02 10:34:56 binding state active next binding state free rewind binding state free hardware ethernet 00:0c:29:25:89:95 client-hostname "daxueba" } 从输出的信息中,可以看到DHCP服务分配出去的IP地址及对应租约信息。第一次用xshell,一直连不上linux,搞了好久,也查了很多办法,但是最后也终于解决了,在这里我分享一下自己的解决办法,再列举网上的办法,希望可以帮助其他人。
1,你的linux ip地址没有配置。
ip地址没有配置,你需要自己配置,配置的方法网上很多,在这里列举一种:
输入vim /etc/sysconfig/network-scripts/ifcfg-eth0命令
1、进入Linux系统,如果是进入的KDE、Gnome等桌面,在桌面右击打开终端。在终端里输入ifconfig -a命令按回车键执行即可查看IP地址,如果是进入的字符界面,直接执行ifconfig -a 命令即可。
2、如下图可以看到了ip地址。
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