<html><head></head><body style="color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>First let me apologize for the length of this email. When I get into situations like this I find it is best to be as detailed as possible as it is usually some assumption or unsaid detail that turns out to be the solution. </div><div><br></div><div>Second, I think I am having other, more fundamental issues than just certificate/AD authentication errors since I can't seem to add new users using the included scripts. <span class="Apple-style-span" style="white-space: pre; ">Here is the message I get when I try to add a user with the adduser.php script:</span></div><div><div><span class="Apple-style-span" style="white-space: pre; "><br></span></div><blockquote style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 40px; border-top-style: none; border-right-style: none; border-bottom-style: none; border-left-style: none; border-width: initial; border-color: initial; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; "><div><span class="Apple-style-span" style="white-space: pre; ">~$ sudo /opt/zendto/bin/adduser.php /opt/zendto/bin/preferences.php 'MyAdmin' '<password>' '<email address>' 'Administrator' '<organization>'
PHP Warning: include(/opt/zendto/bin/preferences.php): failed to open stream: No such file or directory in /opt/zendto/bin/adduser.php on line 28
PHP Warning: include(): Failed opening '/opt/zendto/bin/preferences.php' for inclusion (include_path='.:/usr/share/php:/usr/share/pear') in /opt/zendto/bin/adduser.php on line 28
PHP Notice: Use of undefined constant NSSDROPBOX_LIB_DIR - assumed 'NSSDROPBOX_LIB_DIR' in /opt/zendto/bin/adduser.php on line 29
PHP Warning: require_once(NSSDROPBOX_LIB_DIRSmartyconf.php): failed to open stream: No such file or directory in /opt/zendto/bin/adduser.php on line 29
PHP Fatal error: require_once(): Failed opening required 'NSSDROPBOX_LIB_DIRSmartyconf.php' (include_path='.:/usr/share/php:/usr/share/pear') in /opt/zendto/bin/adduser.php on line 29</span></div><div><span class="Apple-style-span" style="white-space: pre; "><br></span></div><div><span class="Apple-style-span" style="white-space: pre; "></span></div></blockquote><div><span class="Apple-style-span" style="white-space: pre; ">Is this permissions related? I assume I need to use sudo because I get the usage message when trying to add users without and lots of permission errors when using the listusers script.</span></div></div><div><br></div><div>Finally let me address the certificate issue.</div><blockquote style="margin:0 0 0 40px; border:none; padding:0px;"><div><i>"If your AD doesn't have a proper certificate, then you will have all sorts of nasty problems making things work. You really need a proper SSL certificate."</i></div><div><br></div></blockquote><div>Let me start of by saying that the LDAP server I am authenticating to is SBS 2008. As with most SBS boxes, this server has an internal name of server.domain.local but also can be reached externally from remote.externaldomain.com. For those reading this who may not know, SBS creates several certificates when it is set up. First it creates a self signed root certificate for all other certificates issued by that server. The certificate name is DOMAIN-SERVER-CA. It also creates an Alternative Name Certificate (sometimes called SAN or UC) certificate whose trusted root is DOMAIN-SERVER-CA. with a cn=remote.externaldomain.com but that includes server.doamin.local as an alternative name. This is the certificate that the domain uses for LDAP and AD encryption and authentication. </div><div><br></div><div>To create a publicly trusted certificate you can run a wizard (which when talking to MS SBS support, highly recommends using) which will allow you to create a certificate that is signed by a trusted third party (verisign, equifax, etc). The only issue with this public certificate is that it is a simple SSL web certificate made to validate remote.externaldomain.com and is NOT an Alternate Name Certificate. MS support has confirmed that this certificate is only used for email and Remote Web Workplace access. It is not and cannot be used for LDAP authentication. MS Active Directory support has told me that the certificate used for LDAP validation MUST include the server name (I.e. SERVER.domain.local and NOT remote.externaldomain.com) This leaves an SBS server with three supported certificate options: </div><ol><li>Use the DOAMIN-SERVER-CA self-signed cert for authentication and put a copy of its public key in the Ubuntu servers list of trusted certificates (can't get that to work)</li><li>Obtain an Alternative Name Certificate (expensive relative to the simple web certificate. Possible to do would prefer a cheaper alternative)</li><li>Use the self-signed remote.domain.com certificate and have the zendto server ignore trust errors, which would allow encryption but in theory would expose you to a man in the middle attack. (Not sure if this is possible)</li></ol><div><br></div><div>The first and third options are the least expensive except and therefore preferable. I have tried installing the certificate on the Ubuntu server in several places but the SERVER-DOMAIN-CA certificate is still read as untrusted by gnutls-cli. I am not sure if this is a gnutls error or a certificate problem. Maybe it doesn't matter since the handshake is occurring internally and if encryption is occurring anyway (not sure if it is or not). For now, a man-in –the-middle attack on my internal network isn't a big concern.</div><div><br></div><div>After playing around with the ldp.exe utility and ldapsearch here is a list of what works and doesn't. I am including the ldp.exe list because that at least lets us know what is working from a windows perspective.</div><div><br></div><div>===LDP.EXE===</div><div>Connecting to the server <server.domain.local> <b>with</b> SSL (port 636) = works (SSL over 389 does not work but that isn't surprising)</div><div>Supported SASL Mechanisms are listed as: GSSAPI; GSS-SPNEGO; EXTERNAL; DIGEST-MD5; <span class="Apple-tab-span" style="white-space:pre"> </span></div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"></span><b><span class="Apple-tab-span" style="white-space:pre"> </span>Start TLS</b> = failed (I assume this is because am already connected to the server via SSL)</div><div><br></div><blockquote style="margin:0 0 0 40px; border:none; padding:0px;"><div><b>Bind Simple</b> with DOMAIN\LDAP or <a href="mailto:LDAP@domain.local">LDAP@domain.local</a> and < LDAP password> = Authenticated as DOMAIN\LDAP</div><div><b><br></b></div><div><b>Bind Simple</b> using only LDAP and <password> (no domain) = Failed, Invalid Credentials</div><div><b><br></b></div><div><b>Bind Simple with no credentials</b> = Authenticated as NT Authority\Anonymous Login</div><div><br></div><div><b>Bind with credentials</b> USER:LDAP <span class="Apple-tab-span" style="white-space:pre"> </span>PASSWORD:<password> DOMAIN:domain = Authenticated as DOMAIN\LDAP</div><div><span class="Apple-tab-span" style="white-space:pre"> </span></div><div><span class="Apple-tab-span" style="white-space:pre"><b>B</b></span><b>ind Advanced (DIGEST)</b> with USER:LDAP <span class="Apple-tab-span" style="white-space: pre; "> </span>PASSWORD:<password> DOMAIN:domain = Failed Server error: 8009030C: LdapErr: DSID-0C0904D1, comment: AcceptSecurityContext error, data 52e, v1772<span class="Apple-tab-span" style="white-space:pre"> </span>Error 0x8009030C The logon attempt failed</div><div><span class="Apple-tab-span" style="white-space: pre; "><b><br></b></span></div><div><span class="Apple-tab-span" style="white-space: pre; "><b>B</b></span><b>ind Advanced (SASL) </b>= Failed. Error <7>: ldap_bind_s() failed: Authentication Method Not Supported.</div><div><br></div></blockquote><div>Connecting to the server <server.domain.local> <b>without</b> SSL (port 389) = works same result as above</div><div><br></div><div><b><span class="Apple-tab-span" style="white-space:pre"> </span>Start TLS</b> = works<span class="Apple-tab-span" style="white-space:pre"> ldap_start_tls_s(ld, &retValue, result, SvrCtrls, ClntCtrls) result <0></span></div><div><span class="Apple-style-span" style="white-space: pre;"><span class="Apple-tab-span" style="white-space:pre"> </span>All the bind results are the same</span></div><div><span class="Apple-style-span" style="white-space: pre;"><br></span></div><div><span class="Apple-style-span" style="white-space: pre;"><span class="Apple-style-span" style="white-space: normal; ">===<span class="Apple-style-span" style="white-space: pre; ">GNUTLS</span>===</span></span></div><div><span class="Apple-style-span" style="white-space: pre;">Running "gnutls-cli --print-cert -p 636 server.domain.local" from the Ubuntu box I get:</span></div><div><span class="Apple-style-span" style="white-space: pre;"><br></span></div><blockquote style="margin:0 0 0 40px; border:none; padding:0px;"><div><div>- Successfully sent 0 certificate(s) to server.</div><div>- Server has requested a certificate.</div><div>- Certificate type: X.509</div><div> - Got a certificate list of 1 certificates.</div><div> - Certificate[0] info:</div><div> - subject `CN=remote.externaldomain.com', issuer `CN=domain-SERVER-CA', RSA key 2048 bits, signed using RSA-SHA</div><div><br></div><div>-----BEGIN CERTIFICATE-----</div><div><Certificate key></div><div>-----END CERTIFICATE-----</div><div><br></div><div>- The hostname in the certificate matches 'server.domain.local'.</div><div>- Peer's certificate issuer is unknown</div><div>- Peer's certificate is NOT trusted</div><div>- Version: TLS1.0</div><div>- Key Exchange: RSA</div><div>- Cipher: AES-128-CBC</div><div>- MAC: SHA1</div><div>- Compression: NULL</div><div>- Handshake was completed</div><div><br></div><div>- Simple Client Mode:</div></div><div><br></div></blockquote><div>===LDAPSEARCH===</div><div>And finally some different ldapsearch results:</div><div><br></div><blockquote style="margin:0 0 0 40px; border:none; padding:0px;"><div><div>~$ ldapsearch -D LDAP -H ldaps://server.domain.local -b "ou=Users,,dc=doamin,dc=local" sAMAccountName</div><div>ldap_sasl_bind(SIMPLE): Can't contact LDAP server (-1)</div></div><div><br></div><div>ldapsearch -w <password> -D LDAP@domain.local -H ldap://server.domain.local -b "ou=Users,dc=domain,dc=local" sAMAccountName</div><div>WORKS! Lists users.</div><div><br></div><div><div>~$ ldapsearch -w X0YnUm7NVHjdGJK0ncSOkAlmmyPHYN15X6oPWOtrvhu1aGEMCm -D LDAPQuery -H ldap://thor.henryv.local -b "ou=SBSUsers,ou=Users,ou=MyBusiness,dc=henryv,dc=local" sAMAccountName</div><div>ldap_bind: Invalid credentials (49)</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>additional info: 80090308: LdapErr: DSID-0C0903AA, comment: AcceptSecurityContext error, data 525, v1772</div></div><div>(I assume this is related to the ldp.exe error using simple bind with no @domain.local)</div></blockquote><div><br></div><div>If you want ssh or vnc access to the server please contact me outside the mailing list for login credentials.</div><span id="OLK_SRC_BODY_SECTION"></span></body></html>