Ubuntu22.04 加入AD域

Ubuntu22.04 加入AD域
要在Ubuntu 22.04上加入Active Directory (AD) 域，你可以使用realmd和sssd服务。以下是加入AD域的步骤和示例配置：

更新系统软件包列表：

sudo apt update

下载安装必要的软件包：

sudo apt install realmd libnss-sss libpam-sss sssd sssd-tools adcli krb5-user packagekit

root@mail:/var/cache/apt/archives# apt-get install --download-only realmd libnss-sss libpam-sss sssd sssd-tools adcli krb5-user packagekit
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
packagekit is already the newest version (1.2.5-2ubuntu2).
The following additional packages will be installed:
  cracklib-runtime krb5-config ldap-utils libavahi-client3 libavahi-common-data libavahi-common3 libbasicobjects0
  libc-ares2 libcollection4 libcrack2 libcups2 libdhash1 libgssrpc4 libini-config5 libipa-hbac0 libkadm5clnt-mit12
  libkadm5srv-mit12 libkdb5-10 libldb2 libnfsidmap1 libnl-route-3-200 libpam-pwquality libpath-utils1
  libpwquality-common libpwquality1 libref-array1 libsasl2-modules-gssapi-mit libsmbclient libsss-certmap0
  libsss-idmap0 libsss-nss-idmap0 libtalloc2 libtdb1 libtevent0 libwbclient0 python3-ldb python3-sss python3-talloc
  samba-libs sssd-ad sssd-ad-common sssd-common sssd-dbus sssd-ipa sssd-krb5 sssd-krb5-common sssd-ldap sssd-proxy
  wamerican
Suggested packages:
  krb5-k5tls cups-common krb5-doc libsss-sudo libsasl2-modules-ldap
The following NEW packages will be installed:
  adcli cracklib-runtime krb5-config krb5-user ldap-utils libavahi-client3 libavahi-common-data libavahi-common3
  libbasicobjects0 libc-ares2 libcollection4 libcrack2 libcups2 libdhash1 libgssrpc4 libini-config5 libipa-hbac0
  libkadm5clnt-mit12 libkadm5srv-mit12 libkdb5-10 libldb2 libnfsidmap1 libnl-route-3-200 libnss-sss libpam-pwquality
  libpam-sss libpath-utils1 libpwquality-common libpwquality1 libref-array1 libsasl2-modules-gssapi-mit libsmbclient
  libsss-certmap0 libsss-idmap0 libsss-nss-idmap0 libtalloc2 libtdb1 libtevent0 libwbclient0 python3-ldb python3-sss
  python3-talloc realmd samba-libs sssd sssd-ad sssd-ad-common sssd-common sssd-dbus sssd-ipa sssd-krb5
  sssd-krb5-common sssd-ldap sssd-proxy sssd-tools wamerican
0 upgraded, 56 newly installed, 0 to remove and 12 not upgraded.
Need to get 11.0 MB of archives.
After this operation, 44.4 MB of additional disk space will be used.
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root@mail:/var/cache/apt/archives#

发现并加入域：

sudo realm discover YOUR.DOMAIN.COM
sudo realm join --user=AdminUser YOUR.DOMAIN.COM

替换YOUR.DOMAIN.COM为你的AD域名，并用一个有权加入新计算机到域的用户代替AdminUser。

配置SSSD：

编辑/etc/sssd/sssd.conf文件，确保有以下配置：

[sssd]
services = nss, pam
config_file_version = 2
domains = YOUR.DOMAIN.COM

[domain/YOUR.DOMAIN.COM]
ad_domain = YOUR.DOMAIN.COM
krb5_realm = YOUR.DOMAIN.COM
realmd_tags = manages-system joined-with-adcli
cache_credentials = True
id_provider = ad
krb5_store_password_if_offline = True
default_shell = /bin/bash
ldap_id_mapping = True
use_fully_qualified_names = False
fallback_homedir = /home/%u
access_provider = ad

再次替换YOUR.DOMAIN.COM为你的AD域名。

重启SSSD服务：

sudo systemctl restart sssd

配置Kerberos：

编辑/etc/krb5.conf，添加以下配置：

[logging]
default = FILE:/var/log/krb5libs.log
kdc = FILE:/var/log/krb5kdc.log
admin_server = FILE:/var/log/kadmind.log

[libdefaults]
default_realm = YOUR.DOMAIN.COM
dns_lookup_realm = false
dns_lookup_kdc = false
ticket_lifetime = 24h
renew_lifetime = 7d
forwardable = true

[realms]
YOUR.DOMAIN.COM = {
kdc = YOUR.KDC.SERVER
admin_server = YOUR.KDC.SERVER
}

[domain_realm]
.YOUR.DOMAIN.COM = YOUR.DOMAIN.COM
YOUR.DOMAIN.COM = YOUR.DOMAIN.COM

[appdefaults]

替换YOUR.DOMAIN.COM和YOUR.KDC.SERVER为你的AD域名和KDC服务器地址。

更新你的DNS服务器设置，确保你的系统可以解析AD域控制器。

测试登录：

sudo authconfig-gtk

在图形界面中选择你的域，输入你的域账号和密码进行测试。

以上步骤可能需要根据你的网络环境和特定配置进行适当调整。如果遇到问题，检查日志文件以获取更多信息，如/var/log/auth.log。