我已经为此奋斗了大约一个星期。我正在尝试让 RADIUS 服务器对我们基于 Samba 的 Active Directory 进行身份验证，但我无法让它工作。由于我们的基础设施，PAP 将无法工作。因为 AD 不提供已知良好的明文密码，所以 CHAP 将不起作用。所以这就离开了 MSCHAP。
RADIUS 服务器位于其自己的 VM 上。所述VM通过Winbind链接到域。我有以下内容/etc/raddb/mods-available/mschap：
$ cat /etc/raddb/mods-available/mschap|grep -Ev '^\s*(#|$)'
mschap {
ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key --username=%{%{Stripped-User-Name}:-%{%{User-Name}:-None}} --challenge=%{%{mschap:Challenge}:-00} --nt-response=%{%{mschap:NT-Response}:-00}"
winbind_username = "%{mschap:User-Name}"
winbind_domain = "[domain]"
winbind_retry_with_normalised_username = yes
pool {
start = ${thread[pool].start_servers}
min = ${thread[pool].min_spare_servers}
max = ${thread[pool].max_servers}
spare = ${thread[pool].max_spare_servers}
uses = 0
retry_delay = 30
lifetime = 86400
cleanup_interval = 300
idle_timeout = 600
}
}
当我有客户端尝试进行身份验证时，相关radiusd -X输出是：
Listening on auth address * port 1812 bound to server default
Listening on acct address * port 1813 bound to server default
Listening on auth address :: port 1812 bound to server default
Listening on acct address :: port 1813 bound to server default
Listening on auth address 127.0.0.1 port 18120 bound to server inner-tunnel
Ready to process requests
(0) Received Access-Request Id 22 from 192.168.6.179:43922 to 192.168.6.192:1812 length 180
(0) Service-Type = Framed-User
(0) Framed-Protocol = PPP
(0) NAS-Port = 15728668
(0) NAS-Port-Type = Virtual
(0) User-Name = "duncan"
(0) Calling-Station-Id = "192.168.6.100"
(0) Called-Station-Id = "192.168.6.179"
(0) MS-CHAP-Challenge = 0x7fd91ada13b38b1800f2f5c1b9a107e4
(0) MS-CHAP2-Response = 0x01000ff84b43a7f4d54b20da108b5f6a76480000000000000000b366008c649fc36a4a9bfb044f65dc8daf3aee10ad679141
(0) NAS-Identifier = "MikroTik"
(0) NAS-IP-Address = 192.168.6.179
(0) # Executing section authorize from file /usr/local/etc/raddb/sites-enabled/default
(0) authorize {
(0) policy filter_username {
(0) if (&User-Name) {
(0) if (&User-Name) -> TRUE
(0) if (&User-Name) {
(0) if (&User-Name =~ / /) {
(0) if (&User-Name =~ / /) -> FALSE
(0) if (&User-Name =~ /@[^@]*@/ ) {
(0) if (&User-Name =~ /@[^@]*@/ ) -> FALSE
(0) if (&User-Name =~ /\.\./ ) {
(0) if (&User-Name =~ /\.\./ ) -> FALSE
(0) if ((&User-Name =~ /@/) && (&User-Name !~ /@(.+)\.(.+)$/)) {
(0) if ((&User-Name =~ /@/) && (&User-Name !~ /@(.+)\.(.+)$/)) -> FALSE
(0) if (&User-Name =~ /\.$/) {
(0) if (&User-Name =~ /\.$/) -> FALSE
(0) if (&User-Name =~ /@\./) {
(0) if (&User-Name =~ /@\./) -> FALSE
(0) } # if (&User-Name) = notfound
(0) } # policy filter_username = notfound
(0) [preprocess] = ok
(0) mschap: Found MS-CHAP attributes. Setting 'Auth-Type = mschap'
(0) [mschap] = ok
(0) [digest] = noop
(0) files: users: Matched entry DEFAULT at line 181
(0) [files] = ok
(0) [expiration] = noop
(0) [logintime] = noop
(0) pap: WARNING: No "known good" password found for the user. Not setting Auth-Type
(0) pap: WARNING: Authentication will fail unless a "known good" password is available
(0) [pap] = noop
(0) } # authorize = ok
(0) Found Auth-Type = mschap
(0) # Executing group from file /usr/local/etc/raddb/sites-enabled/default
(0) authenticate {
(0) mschap: Creating challenge hash with username: duncan
(0) mschap: Client is using MS-CHAPv2
(0) mschap: Executing: /usr/bin/ntlm_auth --request-nt-key --username=%{%{Stripped-User-Name}:-%{%{User-Name}:-None}} --challenge=%{%{mschap:Challenge}:-00} --nt-response=%{%{mschap:NT-Response}:-00}:
(0) mschap: EXPAND --username=%{%{Stripped-User-Name}:-%{%{User-Name}:-None}}
(0) mschap: --> --username=duncan
(0) mschap: Creating challenge hash with username: duncan
(0) mschap: EXPAND --challenge=%{%{mschap:Challenge}:-00}
(0) mschap: --> --challenge=6c2a06548de859d5
(0) mschap: EXPAND --nt-response=%{%{mschap:NT-Response}:-00}
(0) mschap: --> --nt-response=b366008c649fc36a4a9bfb044f65dc8daf3aee10ad679141
(0) mschap: ERROR: Program returned code (1) and output 'Logon failure (0xc000006d)'
(0) mschap: External script failed
(0) mschap: ERROR: External script says: Logon failure (0xc000006d)
(0) mschap: ERROR: MS-CHAP2-Response is incorrect
(0) [mschap] = reject
(0) } # authenticate = reject
(0) Failed to authenticate the user
(0) Using Post-Auth-Type Reject
(0) # Executing group from file /usr/local/etc/raddb/sites-enabled/default
(0) Post-Auth-Type REJECT {
(0) attr_filter.access_reject: EXPAND %{User-Name}
(0) attr_filter.access_reject: --> duncan
(0) attr_filter.access_reject: Matched entry DEFAULT at line 11
(0) [attr_filter.access_reject] = updated
(0) } # Post-Auth-Type REJECT = updated
(0) Delaying response for 1.000000 seconds
Waking up in 0.6 seconds.
Waking up in 0.3 seconds.
(0) Sending delayed response
(0) Sent Access-Reject Id 22 from 192.168.6.192:1812 to 192.168.6.179:43922 length 103
(0) MS-CHAP-Error = "\001E=691 R=1 C=06f7ce6fa5be464d72e8def2f9634910 V=3 M=Authentication rejected"
Waking up in 3.9 seconds.
(0) Cleaning up request packet ID 22 with timestamp +8
Ready to process requests
以及 samba 日志级别 5 输出：
[2018/03/19 11:13:13.166062, 3] ../libcli/auth/schannel_state_tdb.c:190(schannel_fetch_session_key_tdb)
schannel_fetch_session_key_tdb: restored schannel info key SECRETS/SCHANNEL/GS-RADIUS
[2018/03/19 11:13:13.166160, 3] ../source4/auth/ntlm/auth.c:271(auth_check_password_send)
auth_check_password_send: Checking password for unmapped user [AD]\[duncan]@[\\GS-RADIUS]
[2018/03/19 11:13:13.166171, 5] ../source4/auth/ntlm/auth_util.c:57(map_user_info_cracknames)
map_user_info_cracknames: Mapping user [AD]\[duncan] from workstation [\\GS-RADIUS]
auth_check_password_send: mapped user is: [AD]\[duncan]@[\\GS-RADIUS]
[2018/03/19 11:13:13.166994, 5] ../source4/auth/ntlm/auth.c:67(auth_get_challenge)
auth_get_challenge: returning previous challenge by module netr_LogonSamLogonWithFlags (normal)
[2018/03/19 11:13:13.167006, 5] ../lib/util/util.c:555(dump_data)
[0000] 2D F2 C3 E3 15 05 ED 58 -......X
[2018/03/19 11:13:13.167502, 2] ../libcli/auth/ntlm_check.c:424(ntlm_password_check)
ntlm_password_check: NTLMv1 passwords NOT PERMITTED for user duncan
[2018/03/19 11:13:13.167518, 3] ../libcli/auth/ntlm_check.c:431(ntlm_password_check)
ntlm_password_check: NEITHER LanMan nor NT password supplied for user duncan
[2018/03/19 11:13:13.167630, 5] ../source4/dsdb/common/util.c:5252(dsdb_update_bad_pwd_count)
Not updating badPwdCount on CN=duncan,CN=Users,DC=ad,DC=goldblattsystems,DC=com after wrong password
[2018/03/19 11:13:13.167656, 2] ../source4/auth/ntlm/auth.c:430(auth_check_password_recv)
auth_check_password_recv: sam_ignoredomain authentication for user [AD\duncan] FAILED with error NT_STATUS_WRONG_PASSWORD
[2018/03/19 11:13:13.348906, 3] ../source4/smbd/service_stream.c:66(stream_terminate_connection)
Terminating connection - 'ldapsrv_call_loop: tstream_read_pdu_blob_recv() - NT_STATUS_CONNECTION_DISCONNECTED'
[2018/03/19 11:13:13.348929, 3] ../source4/smbd/process_single.c:114(single_terminate)
single_terminate: reason[ldapsrv_call_loop: tstream_read_pdu_blob_recv() - NT_STATUS_CONNECTION_DISCONNECTED]
这是什么原因造成的？我该如何解决？
您既不需要启用
ntlm_auth行，/etc/raddb/mods-available/mschap也不需要ntlm auth = yes在smb.conf. 由于 MSCHAPv2 似乎不支持 NTLMv2，因此您需要在您的 中设置以下内容smb.conf：引用smb.conf 联机帮助页：
但是，对于现代 Sambas 和最新版本的 Freeradius，您不需要
ntlm_auth显式启用，因为Freeradius 3.0.8 和更新的版本可以直接与 Winbind 对话。只要记住给它读取 Winbind 管道的权限！例如。在 Debian 上可以运行setfacl -m u:freerad:rx /var/lib/samba/winbindd_privileged/.radtest -t mschap testaccount mypass 127.0.0.1 0 testing123总而言之，我在运行 Samba 作为 AD DC 和 Freeradius 的 Debian Buster 盒子上接收 Access-Accept 时对 mschap 模块配置所做的所有更改都在以下差异中：（请注意，这
winbind_retry_with_normalised_username可能与此测试环境无关。）MYDOMAIN是经典 NT4 形式的域名，而不是类似 Kerberos 的DOMAIN.TLD形式。即使您没有直接在 DC 上运行 Freeradius，只要服务器正确加入域，Freeradius 的实际 mschap 模块配置应该仍然相同。如果 DC 是 Windows，那么显然没有 smb.conf，但是能否使用 NTLMv1 取决于域功能级别以及用户是否属于受保护的用户组。请注意，如果 MSCHAPv2 将用于 Wi-Fi 身份验证，则应仅在相互身份验证的隧道内使用它以防止伪造接入点。对于 EAP 类型，请参阅Wikipedia，有关客户端限制的摘要，请参阅为什么要使用 EAP-TTLS 而不是 PEAP？
ntlm auth = yes在 smb.conf 的全局部分中设置“固定”它。我想回到禁止 ntlmv1 所以如果有人有办法在没有 ntlmv1 的情况下让它工作，请发布你自己的答案。