It worked. My problem was resolved. Thank you very much for all of your help.

Regards,

Eder




> On Aug 28, 2020, at 1:45 PM, Rangesh Gupta <[email protected]> wrote:
> 
> Can you disable NLA on windows machine and try with TLS security mode.
> 
> You can use below command in powershell to disable NLA:
> 
> $ComputerName = '<HOSTNAME>'   // Update your windows machine hostname.
>  
> (Get-WmiObject -class Win32_TSGeneralSetting -Namespace 
> root\cimv2\terminalservices -ComputerName $ComputerName -Filter 
> "TerminalName='RDP-tcp'").SetUserAuthenticationRequired(0)
> 
> 
> Thanks,
> Rangesh
> 
> On Fri, Aug 28, 2020 at 4:11 PM Eder Cervantes Alcala 
> <[email protected] <mailto:[email protected]>> wrote:
> Hi,
> 
> When I use security mode: ANY, this is what I get. It’s talking about 
> certificate mismatching:
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: connected to 
> 10.1.0.5:3389 
> <https://urldefense.com/v3/__http://10.1.0.5:3389__;!!GqivPVa7Brio!KeBvsGHUFpAvrhp2iuYK85K8ss43sXziVn2gjICL2pp7_fDr_apTGFXzj-yYdjjDIVU$>
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: creating directory 
> /sbin/.freerdp/certs
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: certificate_store_open: 
> error opening [/sbin/.freerdp/known_hosts] for writing
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: 
> @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: @           WARNING: 
> CERTIFICATE NAME MISMATCH!           @
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: 
> @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: The hostname used for 
> this connection (10.1.0.5)
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: does not match the name 
> given in the certificate:
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: demoapp01
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: A valid certificate for 
> the wrong name should NOT be trusted!
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: tls_connect: 
> certificate not trusted, aborting.
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd[1745]: Connection 
> "$1abd191a-bdb1-4cb6-84de-f26b4af6e115" removed.
> Aug 28 20:04:19 guacamole-linux7-8-from-import guacd: guacd[1745]: 
> INFO:#011Connection "$1abd191a-bdb1-4cb6-84de-f26b4af6e115" removed.
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd[1745]: Creating new 
> client for protocol "rdp"
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd[1745]: Connection ID is 
> "$fc966494-546f-41cc-bcfe-344dbec8508b"
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd: guacd[1745]: 
> INFO:#011Creating new client for protocol "rdp"
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd: guacd[1745]: 
> INFO:#011Connection ID is "$fc966494-546f-41cc-bcfe-344dbec8508b"
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd[21745]: Security mode: 
> ANY
> Aug 28 20:05:46 guacamole-linux7-8-from-import server: 20:05:46.519 
> [http-bio-8080-exec-33] INFO  o.a.g.tunnel.TunnelRequestService - User 
> "guac_adm" connected to connection "4".
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd: guacd[21745]: 
> INFO:#011Security mode: ANY
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd[21745]: Resize method: 
> none
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd: guacd[21745]: 
> INFO:#011Resize method: none
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd[21745]: User 
> "@c476282f-9735-4cac-a1b1-6aa87284a3a3" joined connection 
> "$fc966494-546f-41cc-bcfe-344dbec8508b" (1 users now present)
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd: guacd[21745]: 
> INFO:#011User "@c476282f-9735-4cac-a1b1-6aa87284a3a3" joined connection 
> "$fc966494-546f-41cc-bcfe-344dbec8508b" (1 users now pres$
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd[21745]: Loading keymap 
> "base"
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd: guacd[21745]: 
> INFO:#011Loading keymap "base"
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd[21745]: Loading keymap 
> "en-us-qwerty"
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd: guacd[21745]: 
> INFO:#011Loading keymap "en-us-qwerty"
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd[21745]: Authentication 
> requested but username or password not given
> Aug 28 20:05:46 guacamole-linux7-8-from-import guacd: guacd[21745]: 
> INFO:#011Authentication requested but username or password not given
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd[21745]: Error connecting 
> to RDP server
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd: guacd[21745]: 
> ERROR:#011Error connecting to RDP server
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd[21745]: User 
> "@c476282f-9735-4cac-a1b1-6aa87284a3a3" disconnected (0 users remain)
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd: guacd[21745]: 
> INFO:#011User "@c476282f-9735-4cac-a1b1-6aa87284a3a3" disconnected (0 users 
> remain)
> 
> If I try to ignore certificates, this is what I get:
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd: connected to 
> 10.1.0.5:3389 
> <https://urldefense.com/v3/__http://10.1.0.5:3389__;!!GqivPVa7Brio!KeBvsGHUFpAvrhp2iuYK85K8ss43sXziVn2gjICL2pp7_fDr_apTGFXzj-yYdjjDIVU$>
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd: creating directory 
> /sbin/.freerdp/certs
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd: certificate_store_open: 
> error opening [/sbin/.freerdp/known_hosts] for writing
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd: SSL_read: Failure in 
> SSL library (protocol error?)
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd: Authentication failure, 
> check credentials.
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd: If credentials are 
> valid, the NTLMSSP implementation may be to blame.
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd[1745]: Connection 
> "$fc966494-546f-41cc-bcfe-344dbec8508b" removed.
> Aug 28 20:05:47 guacamole-linux7-8-from-import guacd: guacd[1745]: 
> INFO:#011Connection "$fc966494-546f-41cc-bcfe-344dbec8508b" removed.
> Aug 28 20:05:47 guacamole-linux7-8-from-import server: 20:05:47.576 
> [http-bio-8080-exec-33] INFO  o.a.g.tunnel.TunnelRequestService - User 
> "guac_adm" disconnected from connection "4". Duration: 105$
> 
> Regards,
> 
> Eder
> 
> 
>> On Aug 28, 2020, at 12:50 PM, Rangesh Gupta <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> Hi Eder,
>> 
>> Below is the error in your guacd log output:
>> 
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: Error: protocol 
>> security negotiation failure.
>> 
>> Edit the connection and try different security modes. Possible values are: 
>> ANY, NLA, TLS, RDP. Hopefully one of the security mode should work.
>> 
>>  More details you find below:
>> https://guacamole.apache.org/doc/gug/configuring-guacamole.html#rdp 
>> <https://urldefense.com/v3/__https://guacamole.apache.org/doc/gug/configuring-guacamole.html*rdp__;Iw!!GqivPVa7Brio!MOKZekkXJEVxiRoPOc-AoadCMNLC6MhhlQYkbx2sp1AEuWt56_q_8v16fcHGNAhmT4Y$>
>> 
>> Thanks and Regards,
>> Rangesh
>> 
>> On Fri, Aug 28, 2020 at 3:33 PM Eder Cervantes Alcala 
>> <[email protected] <mailto:[email protected]>> wrote:
>> Here is what is being output. The connection I am trying is 10.1.0.5.
>> 
>> Aug 28 18:02:31 guacamole-linux7-8-from-import guacd[14029]: Last user of 
>> connection "$189398c9-de38-40e3-8ff7-63302483ba17" disconnected
>> Aug 28 18:02:31 guacamole-linux7-8-from-import guacd: connected to 
>> 10.1.0.5:3389 
>> <https://urldefense.com/v3/__http://10.1.0.5:3389__;!!GqivPVa7Brio!MOKZekkXJEVxiRoPOc-AoadCMNLC6MhhlQYkbx2sp1AEuWt56_q_8v16fcHG-i3Dyuw$>
>> Aug 28 18:02:31 guacamole-linux7-8-from-import guacd: Error: protocol 
>> security negotiation failure
>> Aug 28 18:02:31 guacamole-linux7-8-from-import guacd[1745]: Connection 
>> "$189398c9-de38-40e3-8ff7-63302483ba17" removed.
>> Aug 28 18:02:31 guacamole-linux7-8-from-import guacd: guacd[1745]: 
>> INFO:#011Connection "$189398c9-de38-40e3-8ff7-63302483ba17" removed.
>> Aug 28 18:02:31 guacamole-linux7-8-from-import server: 18:02:31.654 
>> [http-bio-8080-exec-2] INFO  o.a.g.tunnel.TunnelRequestService - User 
>> "guac_adm" disconnected from connection "4". Duration: 131 $
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[1745]: Creating new 
>> client for protocol "rdp"
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[1745]: Connection ID is 
>> "$98173ad2-9806-48b1-94d9-2eb11ea4d6c9"
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[1745]: 
>> INFO:#011Creating new client for protocol "rdp"
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[1745]: 
>> INFO:#011Connection ID is "$98173ad2-9806-48b1-94d9-2eb11ea4d6c9"
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[14050]: No security 
>> mode specified. Defaulting to RDP.
>> Aug 28 18:02:43 guacamole-linux7-8-from-import server: 18:02:43.536 
>> [http-bio-8080-exec-18] INFO  o.a.g.tunnel.TunnelRequestService - User 
>> "guac_adm" connected to connection "4".
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[14050]: 
>> INFO:#011No security mode specified. Defaulting to RDP.
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[14050]: Resize method: 
>> none
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[14050]: 
>> INFO:#011Resize method: none
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[14050]: User 
>> "@54c03d78-d690-4415-96c6-aef68cd78392" joined connection 
>> "$98173ad2-9806-48b1-94d9-2eb11ea4d6c9" (1 users now present)
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[14050]: 
>> INFO:#011User "@54c03d78-d690-4415-96c6-aef68cd78392" joined connection 
>> "$98173ad2-9806-48b1-94d9-2eb11ea4d6c9" (1 users now pres$
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[14050]: Loading keymap 
>> "base"
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[14050]: 
>> INFO:#011Loading keymap "base"
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[14050]: Loading keymap 
>> "en-us-qwerty"
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[14050]: 
>> INFO:#011Loading keymap "en-us-qwerty"
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[14050]: Error 
>> connecting to RDP server
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: recv: Connection reset 
>> by peer
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[14050]: 
>> ERROR:#011Error connecting to RDP server
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[14050]: User 
>> "@54c03d78-d690-4415-96c6-aef68cd78392" disconnected (0 users remain)
>> Aug 28 18:02:43 guacamole-linux7-8-from-import server: 18:02:43.611 
>> [http-bio-8080-exec-18] INFO  o.a.g.tunnel.TunnelRequestService - User 
>> "guac_adm" disconnected from connection "4". Duration: 75 $
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[14050]: 
>> INFO:#011User "@54c03d78-d690-4415-96c6-aef68cd78392" disconnected (0 users 
>> remain)
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[14050]: 
>> INFO:#011Last user of connection "$98173ad2-9806-48b1-94d9-2eb11ea4d6c9" 
>> disconnected
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[14050]: Last user of 
>> connection "$98173ad2-9806-48b1-94d9-2eb11ea4d6c9" disconnected
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: connected to 
>> 10.1.0.5:3389 
>> <https://urldefense.com/v3/__http://10.1.0.5:3389__;!!GqivPVa7Brio!MOKZekkXJEVxiRoPOc-AoadCMNLC6MhhlQYkbx2sp1AEuWt56_q_8v16fcHG-i3Dyuw$>
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: Error: protocol 
>> security negotiation failure
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd[1745]: Connection 
>> "$98173ad2-9806-48b1-94d9-2eb11ea4d6c9" removed.
>> Aug 28 18:02:43 guacamole-linux7-8-from-import guacd: guacd[1745]: 
>> INFO:#011Connection "$98173ad2-9806-48b1-94d9-2eb11ea4d6c9" removed.
>> 
>> 
>> Aug 28 18:01:50 guacamole-linux7-8-from-import guacd[13979]: Connected to 
>> RDPDR 1.13 as client 0x0002
>> ^I also found this.
>> 
>> 
>> 
>>> On Aug 28, 2020, at 11:43 AM, Nick Couchman <[email protected] 
>>> <mailto:[email protected]>> wrote:
>>> 
>>> What about output/errors from guacd?
>>> 
>>> On Fri, Aug 28, 2020 at 2:25 PM Eder Cervantes Alcala 
>>> <[email protected] <mailto:[email protected]>> wrote:
>>> <PastedGraphic-1.png>
>>> Here is the error I am getting.
>>> 
>>> <PastedGraphic-2.png>
>>> The connection is timing out immediately without trying to connect.
>>> 
>>> The guacamole server is running on OEL7.7 and the destination is Windows 
>>> 2012 Server SE.
>>> 
>>> I hope this is more helpful.
>>> 
>>> Regards,
>>> 
>>> Eder Cervantes
>>> 
>>> 
>>> 
>>>> On Aug 27, 2020, at 4:17 PM, ivanmarcus <[email protected] 
>>>> <mailto:[email protected]>> wrote:
>>>> 
>>>> It's difficult to advise on this problem without further information.
>>>> 
>>>> A more detailed description than 'can't connect' would help, as would log 
>>>> data. For example, what error message do you get? Do you get an initial 
>>>> connection then drop out, or will it just not appear to connect at all?
>>>> 
>>>> This information will inform the ultimate answer to your problem, but to 
>>>> give a general response I'd anticipate some issues with FreeRDP > 2.0.0 
>>>> and earlier versions of Windows. Disabling caching, and reducing colour 
>>>> levels (via Guacamole) *may* assist in this area, but YMMV.
>>>> 
>>>> 
>>>> On 28/08/2020 10:31 a.m., Eder Cervantes Alcala wrote:
>>>>> Hi,
>>>>> 
>>>>> I can't connect to my windows image using Guacamole. I am using an older 
>>>>> version of Windows(2012 server standard). I can connect using rdp, so I 
>>>>> was wondering if freerdp might be incompatible with older versions of 
>>>>> windows?
>>>>> 
>>>>> Regards,
>>>>> 
>>>>> Eder Cervantes
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: [email protected] 
>>>>> <mailto:[email protected]>
>>>>> For additional commands, e-mail: [email protected] 
>>>>> <mailto:[email protected]>
>>>>> 
>>>> 
>>> 
>> 
> 

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