Shulou(Shulou.com)06/02 Report--

Brief introduction of Cobbler automatic installation:

Cobbler is an open source project developed using Python, which provides a fully automatic network installation environment for batch and rapid establishment of Linux systems by centralizing all the services involved in deploying the system.

Cobbler provides PXE management, DHCP management, Yum source management, TFTP management, power management and other functions. In addition, it also supports command line management, web interface management, and provides API interface to facilitate secondary development.

Cobbler-related software packages are provided by the EPEL source. EPEL is a software repository project maintained by the Fedora team that provides REDHEL/Centos with no distribution packages by default. (EPEL: an additional software package for Enterprise Linux)

In addition to the EPEL source, the installation of Cobbler requires a network source that comes with centos to provide related dependency packages.

Cobbler automatic installation test deployment:

Experimental environment: choose to build cobbler service on CtenOS7 on 1.VMware virtual machine.

The network card mode is switched to NAT mode, and the IP address is 192.168.100.20.

Import the downloaded epel source package into the server and install it. **

Next, carry out the experimental operation: * *

1. First of all, modify the configuration of the network card, change it to DHCP custom to obtain IP, and automatically obtain the IP address of 192.168.21.135

two。 Then import the downloaded epel source package into the server and install it. As shown in the following figure:

3. Because the service needs to be installed with yum below, load the yum repository (yum list) here, and then install the various services. Yum install cobbler-web dhcp tftp-sever pykickstart httpd rsync xinetd-y

4. Enable the cobbler service to enable the Apche service, turn off the firewall, and turn off the enhanced * * to view the status of the cobbler service:

5.vim / etc/cobbler/settings # modify cobbler main configuration file

Next_server: 192.168.106.131 # specify the cobbler server address

Server:192.168.106.131 # specifies the TFTP server address (because tftp is in cobbler, it points to the same address)

Manage_dhcp: 1 # enable the dhcp management service (1: enable 0: disable)

6. Systemctl restart httpd.service restarts the httpd service after configuration

Systemctl restart cobblerd.service restarts the Cobblerd service

Systemctl status cobblerd.service # check whether the service is started

Systemctl disable firewalld.service # turn off the firewall

Systemctl stop firewalld.service # disable the firewall the next time you start

Setenforce 0 # turn off Enhancement * *

Cobbler check # check settings for cobbler

7. Next, we need to modify the above inspection results. First modify the tftp configuration file:

Vim / etc/xinetd.d/tftp

8.openssl passwd-1-salt '123123' '123123' # create the password of the installed user root is 123123

Vim / etc/cobbler/settings # copies the generated password to the following configuration file

Default_password_crypted: "$1 $123123$ MAV.kVI/b3swmFLErPD2b0."

9.vim / etc/cobbler/dhcp.template # modifies dhcp templates managed by cobbler

Subnet 192.168.21.0 netmask 255.255.255.0 {

Option routers 192.168.21.1

Option domain-name-servers 192.168.21.2

Option subnet-mask 255.255.255.0

Range dynamic-bootp 192.168.21.100 192.168.21.200

10.cobbler sync # helps generate DHCP configuration files synchronously

11.cobbler get-loaders # download boot operating system files

12.systemctl start dhcpd.service # start the DHCP service

Systemctl start cobblerd.service # start the cobbler service

Systemctl start xinetd.service # start the tftp service

/ var/log/cobbler/cobbler.log # location of the log file

Cobbler import-- path=/mnt/-- name=CentOS-7-x86_64-- arch=x86_64 # Import ISO image

Cobbler list / / View the import result

Cobbler distro list / / View the release version

13.yum install tree-y # installation command

Tree / var/lib/tftpboot/images # View kernel and boot file

At this point, the machine can be installed automatically, to ensure success, restart the service again.

14. We create a new virtual machine for verification without using image files. The network card is set to NAT mode.

Management of web for cobbler:

After the cobbler installation system is complete, we can also use the web interface to manage cobbler,cobbler web is a very friendly front end, just need to install cobbler web. We've installed it before.

Cobbler web supports multiple authentication methods, two of which are described below:

The first kind: WEB management

Htdigest-c / etc/cobbler/users.digest cobbler cbadmin # create a manager named cbadmin

Systemctl start cobblerd.service

Systemctl start httpd.service # restart the service

The second kind: PAM authentication

Vim / etc/cobbler/modules.conf

[authorization]

Module = authz_ownership

[authentication]

Module = authn_pam

Useradd webzhangsan # create user

Passwd webzhangsan

Vim / etc/cobbler/users.conf

[admins]

Admin = ""

Cobbler = ""

Webzhangsan = "" # add accessible users

Systemctl restart httpd.service

Systemctl restart cobblerd.service # restart the service

Visit https://192.168.21.135/cobbler_web

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