第十二周作业

1、配置chrony服务，实现服务器时间自动同步

  1 说明：chrony既可作为客户端去同步服务端的时间，也可作为服务端让客户端去同步自己的时间。
  2 
  3 1、安装chrony程序,并作配置：
  4 
  5 [root@db01 ~]# yum -y install chrony
  6 ...
  7 [root@db01 ~]# vim /etc/chrony.conf
  8 # Use public servers from the pool.ntp.org project.
  9 # Please consider joining the pool (http://www.pool.ntp.org/join.html).
 10 server ntp.aliyun.com iburst （指定同步的时间服务器，这里选择阿里的时间服务器，一般会设置两个远端时间服务器，此时本机作为客户端。iburst 参数可加速时间同步）
 11 #server 1.centos.pool.ntp.org iburst
 12 #server 2.centos.pool.ntp.org iburst
 13 #server 3.centos.pool.ntp.org iburst
 14 
 15 # Record the rate at which the system clock gains/losses time.
 16 driftfile /var/lib/chrony/drift
 17 
 18 # Allow the system clock to be stepped in the first three updates
 19 # if its offset is larger than 1 second.
 20 makestep 1.0 3
 21 
 22 # Enable kernel synchronization of the real-time clock (RTC).
 23 rtcsync
 24 
 25 # Enable hardware timestamping on all interfaces that support it.
 26 #hwtimestamp *
 27 
 28 # Increase the minimum number of selectable sources required to adjust
 29 # the system clock.
 30 #minsources 2
 31 
 32 # Allow NTP client access from local network.
 33 #allow 192.168.0.0/16
 34 allow 0.0.0.0/0 （开启后，表示允许客户端同步本主机时间的网络，这里表示任意网络都允许，此时本机作为服务端。）
 35 # Serve time even if not synchronized to a time source.
 36 local stratum 10 （开启后，当本主机与同步时间指定远程服务器通信异常时，仍可让局域网内的主机与此主机的时间保持同步，建议启用。）
 37 
 38 # Specify file containing keys for NTP authentication.
 39 #keyfile /etc/chrony.keys
 40 
 41 # Specify directory for log files.
 42 logdir /var/log/chrony
 43 
 44 # Select which information is logged.
 45 #log measurements statistics tracking
 46 
 47 
 48 
 49 2、测试:
 50 
 51 本机作为客户端时，去同步阿里的时间：
 52 
 53 修改本机时间至错误时间：
 54 
 55 [root@db01 ~]# date
 56 Mon Feb 17 18:31:00 CST 2020
 57 [root@db01 ~]# date -s "-1 year"
 58 Sun Feb 17 18:31:47 CST 2019
 59 
 60 启动chronyd服务，再次查看时间，时间同步完成：
 61 
 62 [root@db01 ~]# systemctl enable chronyd
 63 Created symlink from /etc/systemd/system/multi-user.target.wants/chronyd.service to /usr/lib/systemd/system/chronyd.service.
 64 [root@db01 ~]# systemctl start chronyd
 65 [root@db01 ~]# date
 66 Sun Feb 17 18:34:58 CST 2019
 67 [root@db01 ~]# date
 68 Mon Feb 17 18:35:12 CST 2020
 69 
 70 3、本机作为服务端，让其它主机同步本机时间时，只需指定同步时间服务器的地址即可,本次客户端是CentOS 7,如果是6则安装ntp(# yum -y install ntp , 然后修改配置文件即可:# vim /etc/ntp.conf )。
 71 
 72 客户端：
 73 
 74 [root@localhost ~]# yum -y install chrony
 75 [root@localhost ~]# vim /etc/chrony.conf
 76 ...
 77 # Use public servers from the pool.ntp.org project.
 78 # Please consider joining the pool (http://www.pool.ntp.org/join.html).
 79 server 192.168.0.199 iburst （指定服务器地址，这里是上文主机的IP地址）
 80 #server 1.centos.pool.ntp.org iburst
 81 #server 2.centos.pool.ntp.org iburst
 82 #server 3.centos.pool.ntp.org iburst
 83 ...
 84 
 85 4、测试：
 86 
 87 修改客户端时间至错误时间：
 88 
 89 [root@localhost ~]# date -s "-1 year"
 90 Sun Feb 17 18:56:56 CST 2019
 91 
 92 启动服务，发现时间立刻同步：
 93 
 94 [root@localhost ~]# systemctl enable chronyd
 95 Created symlink from /etc/systemd/system/multi-user.target.wants/chronyd.service to /usr/lib/systemd/system/chronyd.service.
 96 [root@localhost ~]# systemctl start chronyd
 97 [root@localhost ~]# date
 98 Mon Feb 17 19:02:22 CST 2020
 99 
100 查看同步状态：
101 
102 [root@localhost ~]# chronyc sources -v
103 210 Number of sources = 1
104 
105   .-- Source mode  '^' = server, '=' = peer, '#' = local clock.
106  / .- Source state '*' = current synced, '+' = combined , '-' = not combined,
107 | /   '?' = unreachable, 'x' = time may be in error, '~' = time too variable.
108 ||                                                 .- xxxx [ yyyy ] +/- zzzz
109 ||      Reachability register (octal) -.           |  xxxx = adjusted offset,
110 ||      Log2(Polling interval) --.      |          |  yyyy = measured offset,
111 ||                                     |          |  zzzz = estimated error.
112 ||                                 |    |           
113 MS Name/IP address         Stratum Poll Reach LastRx Last sample
114 ===============================================================================
115 ^* 192.168.0.199                 3   6    37    39  -4258ns[ -181us] +/-   15ms

 

2、实现cobbler+pxe自动化装机

 一、环境准备

两台主机

一台主机：CentOS7.4充当Cobbler，http，dhcp，tftp服务器，并关闭防火墙和SELinux

一台主机：充当测试机，用于实现自动化安装Linux系统

网络要求：关闭VMWARE软件中的NAT模式中的DHCP服务，两台主机网卡基于NAT模式

二、安装相关包并启动服务

 1 1.下载阿里云base源和epel源
 2 [root@db01 yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
 3 [root@db01 yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
 4 2.安装相关服务，并启动服务
 5 [root@db01 yum.repos.d]# yum install cobbler dhcp -y
 6 [root@db01 yum.repos.d]# systemctl enable --now cobblerd httpd tftp dhcpd
 7 Created symlink from /etc/systemd/system/multi-user.target.wants/cobblerd.service to /usr/lib/systemd/system/cobblerd.service.
 8 Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.
 9 Created symlink from /etc/systemd/system/sockets.target.wants/tftp.socket to /usr/lib/systemd/system/tftp.socket.
10 Created symlink from /etc/systemd/system/multi-user.target.wants/dhcpd.service to /usr/lib/systemd/system/dhcpd.service.
11 Job for dhcpd.service failed because the control process exited with error code. See "systemctl status dhcpd.service" and "journalctl -xe" for details.
12 #最后的错误是因为未配置DHCP

三、修改cobbler相关的配置

 1 [root@db01 yum.repos.d]# cobbler check
 2 The following are potential configuration items that you may want to fix:
 3 
 4 1 : The 'server' field in /etc/cobbler/settings must be set to something other than localhost, or kickstarting features will not work.  This should be a resolvable hostname or IP for the boot server as reachable by all machines that will use it.
 5 2 : For PXE to be functional, the 'next_server' field in /etc/cobbler/settings must be set to something other than 127.0.0.1, and should match the IP of the boot server on the PXE network.
 6 3 : change 'disable' to 'no' in /etc/xinetd.d/tftp
 7 4 : Some network boot-loaders are missing from /var/lib/cobbler/loaders, you may run 'cobbler get-loaders' to download them, or, if you only want to handle x86/x86_64 netbooting, you may ensure that you have installed a *recent* version of the syslinux package installed and can ignore this message entirely.  Files in this directory, should you want to support all architectures, should include pxelinux.0, menu.c32, elilo.efi, and yaboot. The 'cobbler get-loaders' command is the easiest way to resolve these requirements.
 8 5 : enable and start rsyncd.service with systemctl
 9 6 : debmirror package is not installed, it will be required to manage debian deployments and repositories
10 7 : The default password used by the sample templates for newly installed machines (default_password_crypted in /etc/cobbler/settings) is still set to 'cobbler' and should be changed, try: "openssl passwd -1 -salt 'random-phrase-here' 'your-password-here'" to generate new one
11 8 : fencing tools were not found, and are required to use the (optional) power management features. install cman or fence-agents to use them
12 
13 Restart cobblerd and then run 'cobbler sync' to apply changes.
14 
15 1.更改/etc/cobbler/settings配置文件的server项为提供cobblerd服务的主机地址，也就是本机地址
16 [root@db01 ~]# sed -i 's#server: 127.0.0.1#server: 192.168.0.199#' /etc/cobbler/settings.bak
17 更改后的整行内容：server: 192.168.0.199
18 2.更改/etc/cobbler/settings配置文件的next_server项，指明tftp服务器地址，使得客户端能够找到TFTP服务器
19 [root@db01 ~]# sed -i 's#next_server: 127.0.0.1#next_server: 192.168.0.199#' /etc/cobbler/settings.bak
20 更改后的整行内容：next_server: 192.168.0.199
21 3.该配置针对的是CentOS6的系统所做的修改，而CentOS7的tftp服务已经处于开机自启了，本次不需要操作这步。
22 [root@db01 ~]# systemctl is-enabled tftp.service
23 indirect
24 [root@db01 ~]# systemctl is-enabled tftp.socket
25 enabled
26 4.联网下载boot引导程序文件，具体实现过程在下文第四节
27 # cobbler get-loaders
28 注意：没有网络情况下拷贝启动文件到TFTP服务文件夹，操作如下：
29 # cp -a /usr/share/syslinux/{pxelinux.0,menu.c32} /var/lib/tftpboot
30 5.用不着，不用启动
31 6.debian系统才需要操作，本系统不需要
32 7.修改默认应答文件生成的root口令，如需要可修改，操作如下
33 [root@db01 ~]# openssl passwd -1 -salt '789' '123456'
34 $1$789$YNO0PdtPpgTiPhocI2BIU.
35 8.跟集群有关，无须更改
36 9.额外修改配置文件，实现cobbler同步配置dhcp服务，更改cobbler自带生成的应答文件的root默认初始密码。
37 [root@db01 ~]# vim /etc/cobbler/settings
38 #通过cobbler生成的dhcp配置模板，通过同步的方式去生成dhcp配置.
39 #注意：开启此项，需要先修改cobbler的dhcp模板，将其修改为主机网络环境下的正确dhcp配置，参考后面的第五节DHCP配置阶段，而后同步才能正常，否则会有报错。
40 manage_dhcp: 1
41 #可修改默认root密码
42 default_password_crypted: “$1$789$YNO0PdtPpgTiPhocI2BIU.” #由上面第7步骤生成

四、下载启动的相关文件

 1 1.下载启动引导文件
 2 
 3 [root@db01 ~]# cobbler get-loaders
 4 task started: 2020-02-20_184124_get_loaders
 5 task started (id=Download Bootloader Content, time=Thu Feb 20 18:41:24 2020)
 6 downloading https://cobbler.github.io/loaders/README to /var/lib/cobbler/loaders/README
 7 downloading https://cobbler.github.io/loaders/COPYING.elilo to /var/lib/cobbler/loaders/COPYING.elilo
 8 downloading https://cobbler.github.io/loaders/COPYING.yaboot to /var/lib/cobbler/loaders/COPYING.yaboot
 9 downloading https://cobbler.github.io/loaders/COPYING.syslinux to /var/lib/cobbler/loaders/COPYING.syslinux
10 downloading https://cobbler.github.io/loaders/elilo-3.8-ia64.efi to /var/lib/cobbler/loaders/elilo-ia64.efi
11 downloading https://cobbler.github.io/loaders/yaboot-1.3.17 to /var/lib/cobbler/loaders/yaboot
12 downloading https://cobbler.github.io/loaders/pxelinux.0-3.86 to /var/lib/cobbler/loaders/pxelinux.0
13 downloading https://cobbler.github.io/loaders/menu.c32-3.86 to /var/lib/cobbler/loaders/menu.c32
14 downloading https://cobbler.github.io/loaders/grub-0.97-x86.efi to /var/lib/cobbler/loaders/grub-x86.efi
15 downloading https://cobbler.github.io/loaders/grub-0.97-x86_64.efi to /var/lib/cobbler/loaders/grub-x86_64.efi
16 *** TASK COMPLETE ***
17 
18 2.查看tftpboot目录下的文件
19 
20 [root@db01 ~]# tree /var/lib/tftpboot/
21 /var/lib/tftpboot/
22 ├── boot
23 ├── etc
24 ├── grub
25 ├── images
26 ├── images2
27 ├── ppc
28 ├── pxelinux.cfg
29 └── s390x
30 
31 8 directories, 0 files
32 
33 3.将刚才下载至/var/lib/cobbler/loaders/中的引导启动文件同步至/var/lib/tftpboot/目录下
34 
35 [root@db01 ~]# cobbler sync
36 task started: 2020-02-20_190308_sync
37 task started (id=Sync, time=Thu Feb 20 19:03:08 2020)
38 running pre-sync triggers
39 cleaning trees
40 removing: /var/lib/tftpboot/grub/images
41 copying bootloaders
42 trying hardlink /var/lib/cobbler/loaders/pxelinux.0 -> /var/lib/tftpboot/pxelinux.0
43 trying hardlink /var/lib/cobbler/loaders/menu.c32 -> /var/lib/tftpboot/menu.c32
44 trying hardlink /var/lib/cobbler/loaders/yaboot -> /var/lib/tftpboot/yaboot
45 trying hardlink /usr/share/syslinux/memdisk -> /var/lib/tftpboot/memdisk
46 trying hardlink /var/lib/cobbler/loaders/grub-x86.efi -> /var/lib/tftpboot/grub/grub-x86.efi
47 trying hardlink /var/lib/cobbler/loaders/grub-x86_64.efi -> /var/lib/tftpboot/grub/grub-x86_64.efi
48 copying distros to tftpboot
49 copying images
50 generating PXE configuration files
51 generating PXE menu structure
52 rendering TFTPD files
53 generating /etc/xinetd.d/tftp
54 cleaning link caches
55 running post-sync triggers
56 running python triggers from /var/lib/cobbler/triggers/sync/post/*
57 running python trigger cobbler.modules.sync_post_restart_services
58 running shell triggers from /var/lib/cobbler/triggers/sync/post/*
59 running python triggers from /var/lib/cobbler/triggers/change/*
60 running python trigger cobbler.modules.manage_genders
61 running python trigger cobbler.modules.scm_track
62 running shell triggers from /var/lib/cobbler/triggers/change/*
63 *** TASK COMPLETE ***
64 
65 4.查看同步结果
66 
67 [root@db01 ~]# tree /var/lib/tftpboot/
68 /var/lib/tftpboot/
69 ├── boot
70 │   └── grub
71 │       └── menu.lst
72 ├── etc
73 ├── grub
74 │   ├── efidefault
75 │   ├── grub-x86_64.efi
76 │   ├── grub-x86.efi
77 │   └── images -> ../images
78 ├── images
79 ├── images2
80 ├── memdisk
81 ├── menu.c32
82 ├── ppc
83 ├── pxelinux.0
84 ├── pxelinux.cfg
85 │   └── default
86 ├── s390x
87 │   └── profile_list
88 └── yaboot

五、实现dhcp服务

 1 #修改dhcp的模板文件下面的行，用来生成dhcp的配置文件
 2 [root@db01 ~]# vim /etc/cobbler/dhcp.template
 3 subnet 192.168.0.0 netmask 255.255.255.0 {
 4      option routers             192.168.0.254;
 5      option domain-name-servers 192.168.0.254;
 6      option subnet-mask         255.255.255.0;
 7      range dynamic-bootp        192.168.0.100 192.168.0.250
 8 ...省略...
 9 [root@db01 ~]# systemctl restart cobblerd.service
10 [root@db01 ~]# cobbler sync #同步后，可看到/etc/dhcp/dhcpd.conf已有配置

六、修改菜单的标题信息

 1 1.编辑cobbler配置菜单模板
 2 [root@db01 ~]# vim /etc/cobbler/pxe/pxedefault.template
 3 DEFAULT menu
 4 PROMPT 0
 5 MENU TITLE Cobbler | http://www.adu.com/ #可修改的菜单标题
 6 TIMEOUT 200
 7 TOTALTIMEOUT 6000
 8 ONTIMEOUT $pxe_timeout_profile
 9 
10 LABEL local
11         MENU LABEL (local)
12         MENU DEFAULT
13         LOCALBOOT -1
14 
15 $pxe_menu_items
16 
17 MENU end
18 2.同步模板
19 [root@db01 ~]# cobbler sync
20 [root@db01 ~]# cat /var/lib/tftpboot/pxelinux.cfg/default
21 DEFAULT menu
22 PROMPT 0
23 MENU TITLE Cobbler | http://www.adu.com/ #同步完成
24 TIMEOUT 200
25 TOTALTIMEOUT 6000
26 ONTIMEOUT local
27 
28 LABEL local
29         MENU LABEL (local)
30         MENU DEFAULT
31         LOCALBOOT -1
32 
33 
34 
35 MENU end

七、导入CentOS系统的安装文件，生成相应的YUM源

 1 1.挂载系统光盘
 2 [root@db01 ~]# mount /dev/sr0 /mnt/
 3 2.导入镜像
 4 [root@db01 ~]# cobbler import --name=centos-7.4-x86_64 --path=/mnt --arch=x86_64 #--name指定distro名称，--path为镜像挂载点路径，--arch应用平台cpu架构
 5 3.查看导入时目录大小变化
 6 [root@db01 ~]# du -sh /var/www/cobbler/
 7 1.1G    /var/www/cobbler/
 8 [root@db01 ~]# du -sh /var/www/cobbler/
 9 1.2G    /var/www/cobbler/
10 4.导入成功，查看distro
11 [root@db01 ~]# cobbler profile list
12    centos-7.4-x86_64
13 5.查看完整的报告
14 [root@db01 ~]# cobbler profile report
15 Name                           : centos-7.4-x86_64
16 TFTP Boot Files                : {}
17 Comment                        :
18 DHCP Tag                       : default
19 Distribution                   : centos-7.4-x86_64
20 Enable gPXE?                   : 0
21 Enable PXE Menu?               : 1
22 Fetchable Files                : {}
23 Kernel Options                 : {}
24 Kernel Options (Post Install)  : {}
25 Kickstart                      : /var/lib/cobbler/kickstarts/sample_end.ks #cobbler生成的最小化安装的应答文件
26 Kickstart Metadata             : {}
27 Management Classes             : []
28 Management Parameters          : <<inherit>>
29 Name Servers                   : []
30 Name Servers Search Path       : []
31 Owners                         : ['admin']
32 Parent Profile                 :
33 Internal proxy                 :
34 Red Hat Management Key         : <<inherit>>
35 Red Hat Management Server      : <<inherit>>
36 Repos                          : []
37 Server Override                : <<inherit>>
38 Template Files                 : {}
39 Virt Auto Boot                 : 1
40 Virt Bridge                    : xenbr0
41 Virt CPUs                      : 1
42 Virt Disk Driver Type          : raw
43 Virt File Size(GB)             : 5
44 Virt Path                      :
45 Virt RAM (MB)                  : 512
46 Virt Type                      : kvm
47 
48 6.查看默认生成的菜单内容
49 [root@db01 ~]# cat /var/lib/tftpboot/pxelinux.cfg/default
50 DEFAULT menu
51 PROMPT 0
52 MENU TITLE Cobbler | http://www.adu.com/
53 TIMEOUT 200
54 TOTALTIMEOUT 6000
55 ONTIMEOUT local
56 
57 LABEL local
58         MENU LABEL (local)
59         MENU DEFAULT
60         LOCALBOOT -1
61 
62 LABEL centos-7.4-x86_64
63         kernel /images/centos-7.4-x86_64/vmlinuz
64         MENU LABEL centos-7.4-x86_64
65         append initrd=/images/centos-7.4-x86_64/initrd.img lang=  text ksdevice=bootif kssendmac  ks=http://192.168.0.199/cblr/svc/op/ks/profile/centos-7.4-x86_64
66         ipappend 2
67 
68 
69 
70 MENU end

八、准备kickstart文件并关联至指定的YUM源

 1 1.安装kickstart图形配置程序，打开图形化界面进行配置
 2 [root@db01 ~]# yum install system-config-kickstart -y
 3 2.配置过程省略，以下是配置好的ks文件
 4 [root@db01 ~]# cat /var/lib/cobbler/kickstarts/centos7.cfg
 5 #platform=x86, AMD64, or Intel EM64T
 6 #version=DEVEL
 7 # Install OS instead of upgrade
 8 install
 9 # Keyboard layouts
10 keyboard 'us'
11 # Root password
12 rootpw --iscrypted $1$ZN1j3U8m$BeGSw6NdHIqcnRELpLH711
13 # Use network installation
14 url --url=$tree                 #yum源的默认路径是由cobbler定义的，需要修改为$tree
15 # System language
16 lang en_US
17 # Firewall configuration
18 firewall --disabled
19 # System authorization information
20 auth  --useshadow  --passalgo=sha512
21 # Use text mode install
22 text
23 firstboot --disable
24 # SELinux configuration
25 selinux --disabled
26 
27 # Network information
28 network  --bootproto=dhcp --device=eth0
29 # Reboot after installation
30 reboot
31 # System timezone
32 timezone Asia/Shanghai
33 # System bootloader configuration
34 bootloader --append="net.ifnames=0" --location=mbr #这里配置为none时，系统安装好后，无法引导。自我警戒！
35 # Partition clearing information
36 clearpart --all
37 # Disk partitioning information
38 part /boot --fstype="xfs" --size=500
39 part swap --fstype="swap" --size=2048
40 part / --fstype="xfs" --size=20480
41 
42 %post
43 useradd mage
44 echo mageedu |passwd --stdin mage
45 %end
46 
47 3.将kickstart文件，关联指定的YUM源和生成菜单列表
48 [root@db01 ~]# cobbler profile add --name=CentOS-7.4_mini --distro=CentOS-7.4-x86_64 --kickstart=/var/lib/cobbler/kickstarts/centos7.cfg
49 [root@db01 ~]# cobbler profile list
50    CentOS-7.4_mini
51    centos-7.4-x86_64
52 
53 4.删除默认的生成菜单
54 [root@db01 ~]# cobbler profile remove --name=centos-7.4-x86_64
55 [root@db01 ~]# cobbler profile list
56    CentOS-7.4_mini
57 
58 5.查看自制的菜单内容
59 
60 DEFAULT menu
61 PROMPT 0
62 MENU TITLE Cobbler | http://www.adu.com/
63 TIMEOUT 200
64 TOTALTIMEOUT 6000
65 ONTIMEOUT local
66 
67 LABEL local
68         MENU LABEL (local)
69         MENU DEFAULT
70         LOCALBOOT -1
71 
72 LABEL CentOS-7.4_mini
73         kernel /images/centos-7.4-x86_64/vmlinuz
74         MENU LABEL CentOS-7.4_mini
75         append initrd=/images/centos-7.4-x86_64/initrd.img ksdevice=bootif lang=  kssendmac text  ks=http://192.168.0.199/cblr/svc/op/ks/profile/CentOS-7.4_mini
76         ipappend 2
77 
78 
79 
80 MENU end

九、测试客户端基于Cobbler实现自动安装

 

十、实现cobbler的web管理

    1、安装cobbler-web

1 [root@db01 ~]# yum install cobbler-web
2 [root@db01 ~]# systemctl restart httpd

　2、访问web界面

　　通过浏览器访问地址：https://cobblerserverIP/cobbler_web
        cobbler-web界面的默认账号密码：cobbler/cobbler

   3、WEB的登入认证方式

　　  认证方法配置文件：/etc/cobbler/modules.conf

        支持多种认证方法：
        • authn_configfile，此为默认的认证方法
        • authn_pam
　　使用authn_configfile模块认证cobbler_web用户
1 [root@db01 ~]# vim /etc/cobbler/modules.conf
2 [authentication]
3 module = authn_configfile
4 
5 [root@db01 ~]# cat /etc/cobbler/users.digest
6 cobbler:Cobbler:a2d6bae81669d707b72c0bd9806e01f3
7 用户名：应用在Cobbler程序上：密码  #上面表示的意思

　　创建其认证文件/etc/cobbler/user.digest，并添加所需的用户的realm只能为Cobbler

1 [root@db01 ~]# htdigest /etc/cobbler/users.digest Cobbler admin
2 Adding user admin in realm Cobbler
3 New password:
4 Re-type new password:
5 [root@db01 ~]# cat /etc/cobbler/users.digest
6 cobbler:Cobbler:a2d6bae81669d707b72c0bd9806e01f3
7 admin:Cobbler:ec0cff8a86a4bc93ada04ae276f62843
 
注意：添加第一个用户时，使用"-c"选项（使用时会删除原来的初始用户），后续添加其它用户时不要再使用，cobbler_web
　　

　　4、登入演示

 

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原文地址：https://www.cnblogs.com/mark-dq/p/12323128.html