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                案例: 當我們在一臺Centos7.3的系統上安裝Vagrant+Virtualbox,我們通過Vagrant啟動了一個ubuntu的虛擬機,并且我想做如下事情 1)從局域網的任何一臺機器上都可以登陸ubuntu虛擬機 2)從局域網任何一臺機器上通過訪問ubuntu虛擬機上提供的web服務等 解決辦法:我們可以在Centos7.3服務器上配置Forwarded Ports轉發端口,意思就是把 Centos7.3 端口 ubuntu16.04 端口 10.2.11.203 2100 10.0.2.15 22 10.2.11.203 80 10.0.2.15 80 當局域網的電腦需要遠程登錄到ubuntu16.04(10.0.2.15)的22端口時,我們只需要遠程連接Centos7.3(10.2.11.203)的2100端口即可。(因為做了端口映射) 那么其他的服務也類似。 注意: 由于vagrant啟動的時候,默認只能通過Centos7.3本機通過vagrant ssh登錄到虛擬機ubuntu(由于默認把127.0.0.1:2222映射到ubuntu16.04虛擬機的22端口),如果我們想從局域網其他機器上ssh到ubuntu虛擬機,就必須重新做端口映射,而且這個端口不能為2222,否則會報錯 二)配置參數 1)選項 guest (int) 虛擬機上的端口---------------必須(例如guest: 22) guest(string) 虛擬機上的IP地址---------------如果沒有設置,則監聽虛擬機上所有IP地址(可選) host (int) 物理機上的端口------------------必須(例如:host: 2100) host_ip(string)物理機上的IP地址------------如果物理機有多個IP地址,我們需要綁定到那個IP,在這里指定(可選) protocol(string) 協議如tcp,upd---------可選 2) auto_correct: true (意思:當一個物理機上運行多個虛擬機的時候,難免映射端口的時候,出現碰撞,導致虛擬機起不來。我們這種這個參數,如果發生碰撞,端口會隨機調整) 案例: Vagrant.configure("2") do |config| config.vm.network "forwarded_port", guest: 2003, host: 12003, protocol: "tcp" config.vm.network "forwarded_port", guest: 2003, host: 12003, protocol: "udp" end (把物理機上tcp 12003映射到虛擬機的tcp 2003端口,把物理機上的udp12003映射到虛擬機的udp2003端口) 三)實際操作 1) 配置Vagrantfile文件 [root@vagrant ubuntu]# vim Vagrantfile # `vagrant box outdated`. This is not recommended. # config.vm.box_check_update = false # Create a forwarded port mapping which allows access to a specific port # within the machine from a port on the host machine. In the example below, # accessing "localhost:8080" will access port 80 on the guest machine. config.vm.network :"forwarded_port", guest: 80, host: 8060,host_ip: "10.2.11.203" config.vm.network :"forwarded_port", guest: 22, host: 2100, host_ip: "10.2.11.203" (配置2個端口映射,把物理機的8080映射到虛擬機80,物理機的2100映射到虛擬機的22) 2)啟動虛擬機 ~~~ [root@vagrant ubuntu]# vagrant up Bringing machine 'default' up with 'virtualbox' provider... ==> default: Importing base box 'ubuntu16.04_louis'... ==> default: Matching MAC address for NAT networking... ==> default: Setting the name of the VM: ubuntu_default_1517298331069_68029 ==> default: Clearing any previously set network interfaces... ==> default: Preparing network interfaces based on configuration... default: Adapter 1: nat ==> default: Forwarding ports... default: 80 (guest) => 8060 (host) (adapter 1) default: 22 (guest) => 2100 (host) (adapter 1) default: 22 (guest) => 2222 (host) (adapter 1) ==> default: Running 'pre-boot' VM customizations... ==> default: Booting VM... ==> default: Waiting for machine to boot. This may take a few minutes... default: SSH address: 127.0.0.1:2222 default: SSH username: vagrant ( 登錄vagrant虛擬機的用戶,這里不同的box用戶不一樣,我這里是vagrant) default: SSH auth method: private key default: Warning: Remote connection disconnect. Retrying... default: default: Vagrant insecure key detected. Vagrant will automatically replace default: this with a newly generated keypair for better security. default: default: Inserting generated public key within guest... default: Removing insecure key from the guest if it's present... default: Key inserted! Disconnecting and reconnecting using new SSH key... ==> default: Machine booted and ready! ==> default: Checking for guest additions in VM... default: The guest additions on this VM do not match the installed version of default: VirtualBox! In most cases this is fine, but in rare cases it can default: prevent things such as shared folders from working properly. If you see default: shared folder errors, please make sure the guest additions within the default: virtual machine match the version of VirtualBox you have installed on default: your host and reload your VM. default: default: Guest Additions Version: 5.0.40 default: VirtualBox Version: 5.1 ==> default: Mounting shared folders... default: /vagrant => /vagrant/ubuntu ~~~ 虛擬機啟動后,我們查看,在/vagrant/ubuntu目錄下,會生成一個.vagrant的目錄,我們查看 [root@vagrant ubuntu]# tree -a . ├── ubuntu-xenial-16.04-cloudimg-console.log ├── .vagrant │?? └── machines │?? └── default │?? └── virtualbox │?? ├── action_provision │?? ├── action_set_name │?? ├── creator_uid │?? ├── id │?? ├── index_uuid │?? ├── private_key---------虛擬機的私鑰 │?? └── synced_folders └── Vagrantfile 意思就是,如果我們想從其他電腦上登錄ubuntu虛擬機,就必須把這個私鑰拷貝過去哦,否則不能登錄 3)配置xshell遠程登錄到ubuntu16.04虛擬機 ![](https://box.kancloud.cn/e5706f160ed2cbb1870738c5662c65b4_584x503.png) ![](https://box.kancloud.cn/bb401efd222c6ccd70df01cf4fc6f973_1220x629.png) ![](https://box.kancloud.cn/a7bdab73b714a0096c0483b7a3c7e793_816x485.png) (表示我們可以從其他機器上,通過xshell連接到ubuntu16.04虛擬機) 4)如果在ubuntu16.04的虛擬機上安裝nginx,然后測試訪問 vagrant@ubuntu-xenial:~$ sudo apt-get -y install nginx vagrant@ubuntu-xenial:~$ ss -tunlp|grep 80 tcp LISTEN 0 128 *:80 *:* tcp LISTEN 0 128 :::80 :::* 然后測試訪問 ![](https://box.kancloud.cn/aff5336c4cbd978420ae9a6832274164_1076x411.png)
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