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Centos6.3安装KVM

一、安装kvm 1 在安装CentOS6.3时可以选择安装好kvm 2 如果未安装好kvm,请按照下列方式安装 [创建本地yum源] 挂载iso文件 mount -o loop -t iso9660 CentOS-6.3-x86_64-bin-DVD1.iso /mnt 设置本地yum源 在/etc/yum.repos.d/创建   “任意文件名.repo"    文件   vi 刚才新建的文件名编辑 【localyum】任意名称 ,不能有空格。 name= local yum  任意名称 baseurl=file:////mnt/Packages      这个路径是自定的。Server为光盘中的Server目录 ,Packages与Server放在同一目录下。即/software目录下 enabled=1   代表   生效     0为不生效 gpgcheck=1   检查gpgkey  1 生效   0不生效 gpgkey=file:///software    安装光盘里有这个文件        不指定  安装时,可能提示没有注册 保存退出 执行命令 yum clean all (1) kvm需要有 CPU 的支持(Intel VT 或 AMD SVM) [root@moniter ~]#egrep '^flags.*(vmx|svm)' /proc/cpuinfo 如果有返回值说明cpu支持虚拟化 (2) 安装kvm libvirted yum install kvm kmod-kvm qemu kvm-qemu-img virt-viewer virt-manager libvirt libvirt-python python-virtinst (3) 启动libvirted service messagebus start service haldaemon start service libvirtd start chkconfig messagebus on chkconfig haldaemon on chkconfig libvirtd on (4)检查kvm是否安装成功 [root@jiayuan ~]# virsh -c qemu:///system list  Id    名称                         状态 ----------------------------------------------------  1     redhat6.3                      running (5)kvm模块 [root@myKVM ~]# lsmod | grep kvm kvm_intel              52570  0 kvm                  314739  1 kvm_intel 二、配置网桥 vi /etc/sysconfig/network-scripts/ifcfg-br0 DEVICE=br0 TYPE=Bridge BOOTPROTO=static BROADCAST=10.207.20.255 IPADDR=10.207.20.200 NETMASK=255.255.255.0 NETWORK=10.207.20.0 ONBOOT=yes b、 vi /etc/sysconfig/network-scripts/ifcfg-eth0 # Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet DEVICE=eth0 BOOTPROTO=none ONBOOT=yes BRIDGE=br0 c、 重起网络服务生效 service network restart d、 echo 1 > /proc/sys/net/ipv4/ip_forward  #虚拟机上网 e、 检查桥接网络 [root@moniter ~]# brctl show bridge name     bridge id               STP enabled     interfaces br0             8000.842b2b74e1b6       no              eth0 virbr0          8000.000000000000       yes br0是我们配置的桥接网卡,virbr0是系统脚本自动配置的NAT网卡 三、安装vnc 注意:CentOS6.3 VNC的命名rpm为tiggervnc-server (1) yum install tiggervnc-server (2) vi /etc/sysconfig/vncservers #加一行     VNCSERVERS="

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    linux下连接windows2003 ppoe 服务器

    1,在CentOS6.3下用 /usr/sbin/pppd  pty "/usr/sbin/pptp publicip --nolaunchpppd" file /etc/ppp/options.pptp user user1 password password1 再用tail -f /var/log/messages看到log如下 Oct  8 03:25:41 localhost pppd[2057]: pppd 2.4.5 started by root, uid 0 Oct  8 03:25:41 localhost pppd[2057]: Using interface ppp0 Oct  8 03:25:41 localhost pppd[2057]: Connect: ppp0 <--> /dev/pts/2 Oct  8 03:25:41 localhost pptp[2058]: anon log[main:pptp.c:314]: The synchronous pptp option is NOT activated Oct  8 03:25:41 localhost pptp[2066]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request' Oct  8 03:25:41 localhost pptp[2066]: anon log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection Reply Oct  8 03:25:41 localhost pptp[2066]: anon log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established. Oct  8 03:25:42 localhost pptp[2066]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request' Oct  8 03:25:42 localhost pptp[2066]: anon log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply. Oct  8 03:25:42 localhost pptp[2066]: anon log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0, peer's call ID 19561). Oct  8 03:25:45 localhost pptp[2066]: anon log[ctrlp_disp:pptp_ctrl.c:950]: PPTP_SET_LINK_INFO received from peer_callid 0 Oct  8 03:25:45 localhost pptp[2066]: anon log[ctrlp_disp:pptp_ctrl.c:953]:   send_accm is 00000000, recv_accm is FFFFFFFF Oct  8 03:25:45 localhost pptp[2066]: anon warn[ctrlp_disp:pptp_ctrl.c:956]: Non-zero Async Control Character Maps are not supported! Oct  8 03:25:45 localhost pppd[2057]: CHAP authentication succeeded Oct  8 03:25:45 localhost pppd[2057]: LCP terminated by peer (tM-+)^R^@<M-Mt^@^@^BM-f) Oct  8 03:25:45 localhost pptp[2066]: anon log[ctrlp_disp:pptp_ctrl.c:950]: PPTP_SET_LINK_INFO received from peer_callid 0 Oct  8 03:25:45 localhost pptp[2066]: anon log[ctrlp_disp:pptp_ctrl.c:953]:   send_accm is FFFFFFFF, recv_accm is FFFFFFFF Oct  8 03:25:45 localhost

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    CentOS6.3 x86_64 最小化安装后安装man

    [root@localhost yum.repos.d]# yum -y install man Loaded plugins: fastestmirror, presto Loading mirror speeds from cached hostfile Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package man.x86_64 0:1.6f-30.el6 will be installed --> Processing Dependency: lzma for package: man-1.6f-30.el6.x86_64 --> Running transaction check ---> Package xz-lzma-compat.x86_64 0:4.999.9-0.3.beta.20091007git.el6 will be installed --> Processing Dependency: xz = 4.999.9-0.3.beta.20091007git.el6 for package: xz-lzma-compat-4.999.9-0.3.beta.20091007git.el6.x86_64 --> Running transaction check ---> Package xz.x86_64 0:4.999.9-0.3.beta.20091007git.el6 will be installed --> Finished Dependency Resolution Dependencies Resolved =====================================================================================================================  Package                    Arch               Version                                        Repository        Size ===================================================================================================================== Installing:  man                        x86_64             1.6f-30.el6                                    base             263 k Installing for dependencies:  xz                         x86_64             4.999.9-0.3.beta.20091007git.el6               base             137 k  xz-lzma-compat             x86_64             4.999.9-0.3.beta.20091007git.el6               base              16 k Transaction Summary ===================================================================================================================== Install       3 Package(s) Total download size: 415 k Installed size: 886 k Downloading Packages: Setting up and reading Presto delta metadata Processing delta metadata Package(s) data still to download: 415 k (1/3): man-1.6f-30.el6.x86_64.rpm                                                                                                     | 263 kB     00:20     (2/3): x

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    安装VIM所依赖包

    CentOS6.3 x86_64 最小化安装版安装vim yum -y install vim 通过这个命令可得出安装vim所得依赖包如下 Transaction Summary ============================================================================================================================================================= Install       9 Package(s) Total download size: 18 M Installed size: 54 M Downloading Packages: Setting up and reading Presto delta metadata Processing delta metadata Package(s) data still to download: 18 M (1/9): gpm-libs-1.20.6-12.el6.x86_64.rpm                                                                                              |  28 kB     00:00      (2/9): perl-5.10.1-127.el6.x86_64.rpm                                                                                                 |  10 MB     00:41      (3/9): perl-Module-Pluggable-3.90-127.el6.x86_64.rpm                                                                                  |  38 kB     00:00      (4/9): perl-Pod-Escapes-1.04-127.el6.x86_64.rpm                                                                                       |  30 kB     00:00      (5/9): perl-Pod-Simple-3.13-127.el6.x86_64.rpm                                                                                        | 210 kB     00:00      (6/9): perl-libs-5.10.1-127.el6.x86_64.rpm                                                                                            | 576 kB     00:02      (7/9): perl-version-0.77-127.el6.x86_64.rpm                                                                                           |  49 kB     00:00      (8/9): vim-common-7.2.411-1.8.el6.x86_64.rpm                                                                                          | 6.0 MB     00:23      (9/9): vim-enhanced-7.2.411-1.8.el6.x86_64.rpm                                                                                        | 892 kB     00:03      ---------------------------------------------------------------------------------------------------------------------------

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    CentOS6.3 x86_64 mininstall 安装扫描之王nmap

    CentOS6.3 x86_64 mininstall 安装扫描之王nmap 1,安装 [root@bogon ~]# yum -y install nmap Loaded plugins: fastestmirror, presto Loading mirror speeds from cached hostfile  * base: mirrors.163.com  * extras: mirrors.163.com  * updates: mirrors.163.com base                                                                    | 3.7 kB     00:00      extras                                                                  | 3.5 kB     00:00      extras/primary_db                                                       | 8.9 kB     00:00      updates                                                                 | 3.5 kB     00:00      updates/primary_db                                                      | 3.5 MB     00:16      Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package nmap.x86_64 2:5.51-2.el6 will be installed --> Processing Dependency: libpcap.so.1()(64bit) for package: 2:nmap-5.51-2.el6.x86_64 --> Running transaction check ---> Package libpcap.x86_64 14:1.0.0-6.20091201git117cb5.el6 will be installed --> Finished Dependency Resolution Dependencies Resolved ===============================================================================================  Package         Arch           Version                                     Repository    Size =============================================================================================== Installing:  nmap            x86_64         2:5.51-2.el6                                base         2.7 M Installing for dependencies:  libpcap         x86_64         14:1.0.0-6.20091201git117cb5.el6            base         126 k Transaction Summary =============================================================================================== Install       2 Package(s) Total download size: 2.9 M Installed size: 10 M Downloading Packages: Setting up and reading Presto delta metadata Processing delta metadata Package(s) data still to download: 2.9 M (1/2): libpcap-1.0.0-6.20091201git117cb5.el6.x8

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    CentOS6.3 KVM下设置网卡为桥接模式

    CentOS6.3 KVM下设置网卡为桥接模式 KVM的默认网络模式为NAT,就是说借助宿主机模式上网,现在我们想改成桥接模式,这样外界就可以直接和宿主机里的 虚拟机通讯了。 1,首先看一下默认的网络设置 # cat /etc/libvirt/qemu/networks/default.xml <network>   <name>default</name>   <uuid>1f118032-0345-4725-adcf-6b94f6aca19c</uuid>   <bridge name="virbr0" />   <mac address='52:54:00:F1:6B:6E'/>   <forward/>   <ip address="192.168.122.1" netmask="255.255.255.0">     <dhcp>       <range start="192.168.122.2" end="192.168.122.254" />     </dhcp>   </ip> </network> 2,再看一下虚拟机配置文件里面的网络设置 #cat /etc/libvirt/qemu/ubuntu10.04.xml <domain type='kvm'>   <name>ubuntu10.04</name>   <uuid>2eeb1395-39a2-a169-4da3-f22b20a1d34f</uuid>   <memory unit='KiB'>1048576</memory>   <currentMemory unit='KiB'>1048576</currentMemory>   <vcpu placement='static'>1</vcpu>   <os>     <type arch='x86_64' machine='rhel6.3.0'>hvm</type>     <boot dev='hd'/>   </os>   <features>     <acpi/>     <apic/>     <pae/>   </features>   <clock offset='utc'/>   <on_poweroff>destroy</on_poweroff>   <on_reboot>restart</on_reboot>   <on_crash>restart</on_crash>   <devices>     <emulator>/usr/libexec/qemu-kvm</emulator>     <disk type='file' device='disk'>       <driver name='qemu' type='raw' cache='none'/>       <source file='/var/lib/libvirt/images/ubuntu10.04.img'/>       <target dev='vda' bus='virtio'/>      

        </disk>     <disk type='block' device='cdrom'>       <driver name='qemu' type='raw'/>       <target dev='hdc' bus='ide'/>       <readonly/>      
        </disk>     <controller type='usb' index='0'>      
        </controller>     <controller type

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    Linux下对lvm逻辑卷分区大小的调整(针对xfs和ext4不同文件系统)

    当我们在安装系统的时候,由于没有合理分配分区空间,在后续维护过程中,发现有些分区空间不够使用,而有的分区空间却有很多剩余空间。如果这些分区在装系统的时候使用了lvm(前提是这些分区要是lvm逻辑卷分区),那么就可以轻松进行扩容或缩容!不同文件系统类型所对应的创建、检查、调整命令不同,下面就针对xfs和ext2/3/4文件系统的lvm分区空间的扩容和缩容的操作做一记录: ------------------------------------------------------------------------------------------ 特别注意的是: resize2fs命令            针对的是ext2、ext3、ext4文件系统 xfs_growfs命令         针对的是xfs文件系统 ------------------------------------------------------------------------------------------

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    CentOS6.3 x86_64位安装xfce4桌面vncserver服务

    CentOS6.3 x86_64位安装xfce4桌面vncserver服务 注意这里用的是最小化安装纯净系统212个包CentOS-6.3-x86_64-minimal.iso 1,wget http://mirrors.sohu.com/fedora-epel//6/x86_64/epel-release-6-7.noarch.rpm    rpm -ivh epel-release-6-7.noarch.rpm 其目的是生产epel的yum源文件 # ls CentOS-Base.repo  CentOS-Base.repo.bak  CentOS-Debuginfo.repo  CentOS-Media.repo  CentOS-Vault.repo  epel.repo  epel-testing.repo 2,# yum groupinfo xfce Loaded plugins: fastestmirror, presto Setting up Group Process Loading mirror speeds from cached hostfile  * epel: kartolo.sby.datautama.net.id epel/group_gz                                                                                                                         | 229 kB     00:05     Group: Xfce  Description: 一个能在低端机器上良好运行的轻便桌面环境。  Mandatory Packages:    Thunar    xfce-utils    xfce4-panel    xfce4-session    xfce4-settings    xfconf    xfdesktop    xfwm4  Default Packages:    NetworkManager-gnome    Terminal    gdm    leafpad    openssh-askpass    orage    polkit-gnome    thunar-archive-plugin    thunar-volman    tumbler    xfce4-appfinder    xfce4-icon-theme    xfce4-mixer    xfce4-power-manager    xfce4-session-engines    xfwm4-theme-nodoka  Optional Packages:    xfwm4-themes  Conditional Packages:    pinentry-gtk 3,# yum -y groupinstall xfce 又安装了226个包,比系统212个还多 Installed:   NetworkManager-gnome.x86_64 1:0.8.1-33.el6          Terminal.x86_64 0:0.4.7-1.el6                       Thunar.x86_64 0:1.3.0-4.el6                         gdm.x86_64 1:2.30.4-33.el6_2                        leafpad.x86_64 0:0.8.18.1-1.el6                     openssh-askpass.x86_64 0:5.3p1-81.el6               orage.x86_64 0:4.8.1-3.el6                          pinentry-gtk.x86_64 0:0.7.6-6.el6                   polkit-gnome.x86_64 0:0.96-3.el6                    thunar-archive-plugin.x86_64 0:0.3.0-2.el6          thunar-volman.x86_64 0:0.6.0-2.el6                  tumbler.x86_64 0:0.1.21-1.el6                       xfce-utils.x86_64 0:4.8.3-1.el6                     xfce4-appfinde

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