远程安装CentOS(请先把防火墙和SELinux关掉)说明默认情况下面是Fedora是开启SELinux，如果dhcp已经开始，客户端一直获取不到，有可能是SELinux没有关闭centos和RedHat关闭SELinux比较简单，fedora说明下1、查看SELinux是否启动getenforce （如果为Enforcing，表示SELinux已经启动）2、进入 vim /etc/selinux/configSELINUX=disabled下次启动的时候，selinux就关掉了3、停止 SELinux setenforce 0
getenforce（显示为Permissive）e
一、配置服务1、安装dhcpd 服务（本机的ip为：192.168.5.2，如果不同做相应的修改）rpm -qa|grep dhcprpm -ivh dhcp-3.0.5-23.el5.i386.rpmvim /etc/dhcpd.confoption space PXE; #DHCP对PXE的TFTP(琐碎文件传输协议)应答选项option PXE.mtftp-ip code 1 = ip-address;option PXE.mtftp-cport code 2 = unsigned integer 16;option PXE.mtftp-sport code 3 = unsigned integer 16;option PXE.mtftp-tmout code 4 = unsigned integer 8;option PXE.mtftp-delay code 5 = unsigned integer 8;option PXE.discovery-control code 6 = unsigned integer 8;option PXE.discovery-mcast-addr code 7 = ip-address;class “pxeclients” {match if substring (option vendor-class-identifier, 0, 9) = “PXEClient”;option vendor-class-identifier “PXEClient”;vendor-option-space PXE;option PXE.mtftp-ip 0.0.0.0;filename “pxelinux.0”; #指定客户端所需要的的bootstrap(引导器)文件名next-server 192.168.5.2; #指定TFTP服务器的IP地址}ddns-update-style interim;ignore client-updates;default-lease-time 1200;max-lease-time 9200;option subnet-mask 255.255.255.0;option broadcast-address 192.168.5.255;option routers 192.168.5.254;option domain-name-servers 192.168.5.254;subnet 192.168.5.0 netmask 255.255.255.0 {range 192.168.5.100 192.168.5.150;}2、安装tftpbootrpm -qa|grep tftptftp-server-0.49-2.el5.centosrpm -ivh tftp-server-0.49-2.el5.centos.i386.rpm（说明如果xinetd没有安装，要先把xinetd安装）修改配置：disable = yes（改为no）查看server_args 目录，如果不是/tftpboot，，改为/tftpboot目录vim /etc/xinetd.d/tftp service tftp{socket_type = dgramprotocol = udpwait = yesuser = rootserver = /usr/sbin/in.tftpdserver_args = -s /tftpbootdisable = noper_source = 11cps = 100 2flags = IPv4}3、安装vsftprpm -qa|grep vsftpvsftpd-2.0.5-16.el5_4.1测试vsftp:[root@GD-CentOS ~]# ftp 127.0.0.1Connected to 127.0.0.1.220 (vsFTPd 2.0.5)530 Please login with USER and PASS.530 Please login with USER and PASS.KERBEROS_V4 rejected as an authentication typeName (127.0.0.1:root): ftp331 Please specify the password.Password:230 Login successful.Remote system type is UNIX.Using binary mode to transfer files.ftp>
与其在那里苦苦挣扎，碍于面子硬撑，倒不如微笑着面对，
