Hello,

in my experience, tomcat10 doesn't work ATM with guacamole, I had have the same issue, switching to tomcat9 solve the problem.

Il 06/10/2021 15:53, Tim Worcester ha scritto:
I haven't tried Guacamole on anything over Tomcat 9 yet.  May want to try giving Tomcat 9 a shot?

http://tomcat.apache.org/#:~:text=EE%209%20platform.-,applications%20that%20run%20on%20tomcat%209%20and%20earlier%20will%20not%20run%20on%20tomcat%2010%20without%20changes <http://tomcat.apache.org/#:~:text=EE%209%20platform.-,applications%20that%20run%20on%20tomcat%209%20and%20earlier%20will%20not%20run%20on%20tomcat%2010%20without%20changes>.,-Java%20EE%20based

On Wed, Oct 6, 2021 at 9:32 AM Khoe, Yonathan <yonathan.k...@unt.edu <mailto:yonathan.k...@unt.edu>> wrote:

    Sorry about that.  It’s RHEL 8 with Tomcat 10 on a Hyper-V VM. I
    haven’t configured any sort of authentication. I went through the
    manual from start to that chapter, so nothing else other than
    installing guac-server and guacamole.war

    Content of Catalina.out during a fresh execution today:

    06-Oct-2021 08:19:14.024 INFO [http-nio-8080-exec-12]
    org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was
    scanned for TLDs yet contained no TLDs. Enable debug logging for
    this logger for a complete list of JARs that were scanned but no
    TLDs were found in them. Skipping unneeded JARs during scanning
    can improve startup time and JSP compilation time.

    06-Oct-2021 08:19:14.027 SEVERE [http-nio-8080-exec-12]
    org.apache.catalina.core.StandardContext.startInternal One or more
    listeners failed to start. Full details will be found in the
    appropriate container log file

    06-Oct-2021 08:19:14.027 SEVERE [http-nio-8080-exec-12]
    org.apache.catalina.core.StandardContext.startInternal Context
    [/guacamole] startup failed due to previous errors

    Content of Catalina.2021-10-06.log also during a fresh execution
    today:

    06-Oct-2021 08:19:14.024 INFO [http-nio-8080-exec-12]
    org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was
    scanned for TLDs yet contained no TLDs. Enable debug logging for
    this logger for a complete list of JARs that were scanned but no
    TLDs were found in them. Skipping unneeded JARs during scanning
    can improve startup time and JSP compilation time.

    06-Oct-2021 08:19:14.027 SEVERE [http-nio-8080-exec-12]
    org.apache.catalina.core.StandardContext.startInternal One or more
    listeners failed to start. Full details will be found in the
    appropriate container log file

    06-Oct-2021 08:19:14.027 SEVERE [http-nio-8080-exec-12]
    org.apache.catalina.core.StandardContext.startInternal Context
    [/guacamole] startup failed due to previous errors

    As far as syslog goes, I’m not sure which of these logs is
    important for analysis.

    [adminserv@cvadguacamole-dev tomcat10]$ cd /var/log

    [adminserv@cvadguacamole-dev log]$ ls -l

    total 2796

    drwxr-xr-x. 2 root root         4096 Sep 30 10:50 anaconda

    drwx------. 2 root root           23 Sep 30 11:23 audit

    -rw-------. 1 root root            0 Oct  6 03:40 boot.log

    -rw-------. 1 root root        16778 Oct  1 03:31 boot.log-20211001

    -rw-------. 1 root root        49655 Oct  4 11:25 boot.log-20211004

    -rw-------. 1 root root        20164 Oct  6 03:40 boot.log-20211006

    -rw-rw----. 1 root utmp          768 Oct  5 21:38 btmp

    -rw-rw----. 1 root utmp            0 Sep 30 10:33 btmp-20211001

    drwxr-xr-x. 2 chrony chrony          6 Mar  1  2021 chrony

    -rw-------. 1 root root        19372 Oct  6 08:01 cron

    drwxr-xr-x. 2 lp sys            57 Sep 30 10:37 cups

    -rw-r--r--. 1 root root        91182 Oct  6 08:11 dnf.librepo.log

    -rw-r--r--. 1 root root       336144 Oct  6 08:11 dnf.log

    -rw-r--r--. 1 root root        18644 Oct  6 08:11 dnf.rpm.log

    -rw-r-----. 1 root root         1860 Oct  5 21:12 firewalld

    drwx--x--x. 2 root gdm             6 Jan 27  2021 gdm

    drwxr-xr-x. 2 root root           21 Sep 30 10:48 glusterfs

    -rw-rw-rw-. 1 root root         8520 Oct  6 08:11 hawkey.log

    drwx------. 2 root root           33 Sep 30 10:48 insights-client

    -rw-r--r--. 1 root root         6741 Oct  5 21:13 kdump.log

    -rw-rw-r--. 1 root utmp       292584 Oct  6 08:11 lastlog

    drwx------. 3 root root           18 Sep 30 10:36 libvirt

    -rw-------. 1 root root            0 Sep 30 10:34 maillog

    -rw-------. 1 root root      2026539 Oct  6 08:17 messages

    drwx------. 2 root root            6 Sep 30 10:33 private

    drwxr-xr-x. 2 root root            6 Jul 21 17:27 qemu-ga

    drwxr-xr-x. 2 root root           43 Sep 30 11:23 rhsm

    drwx------. 3 root root           17 Sep 30 10:34 samba

    -rw-------. 1 root root        63149 Oct  6 08:17 secure

    drwx------. 2 root root            6 Dec 10  2018 speech-dispatcher

    -rw-------. 1 root root            0 Sep 30 10:34 spooler

    drwxr-x---. 2 sssd sssd           93 Sep 30 11:26 sssd

    drwxr-xr-x. 3 root root           21 Sep 30 10:36 swtpm

    drwxr-xr-x. 2 root root           23 Sep 30 11:23 tuned

    -rw-rw-r--. 1 root utmp        14208 Oct  6 08:11 wtmp

    -rw-r--r--. 1 root gdm         17693 Oct  5 21:13 Xorg.0.log

    -rw-r--r--. 1 root gdm         17693 Oct  5 13:40 Xorg.0.log.old

    -rw-r--r--. 1 root adminserv   17853 Oct  4 11:44 Xorg.1.log

    -rw-r--r--. 1 root adminserv   17994 Oct  4 09:52 Xorg.1.log.old

    -rw-r--r--. 1 root root        18137 Sep 30 11:24 Xorg.9.log

    Thank you,

    Yo Khoe

    CVAD IT

    University of North Texas

    *From:* ivan marcus <ivanmar...@yahoo.com.INVALID>
    *Sent:* Tuesday, October 5, 2021 11:26 PM
    *To:* user@guacamole.apache.org <mailto:user@guacamole.apache.org>
    *Subject:* [EXT] Re: Should I see the Login Page at this point in
    time following the documentation?

    Yes, once you've installed Guacamole & necessary support packages,
    including Tomcat, and configured per the page you reference, you
    should get the initial login screen.

    You've not said what distribution you're using, or what auth type
    you've configured, but it might pay to have a look at your log
    files to see if they carry useful information regarding the error
    you have?

    In particular syslog and/or catalina.out may well give you
    sufficient detail to resolve the problem.

    If that doesn't help, and you need to post back here, please
    include your distribution and config detail, and excerpts from
    your log files where you've restarted guacd and tomcat, and
    attempted a login.

    Thanks.

    On Wednesday, 6 October 2021, 04:23:48 pm NZDT, Khoe, Yonathan
    <yonathan.k...@unt.edu <mailto:yonathan.k...@unt.edu>> wrote:

    Hello,

    I’m slowly getting a test build going for Guac and currently on
    the Deployment section of the doc.  At the last section on
    restarting tomcat and starting guac

     “After restarting Tomcat and startingguacd, Guacamole is
    successfully installed, though it will not be fully running. In
    its current state, it is completely unconfigured, and further
    steps are required to add at least one Guacamole user and a few
    connections. This is covered in Chapter 5, /Configuring Guacamole/
    
<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fguacamole.apache.org%2Fdoc%2Fgug%2Fconfiguring-guacamole.html&data=04%7C01%7CYonathan.Khoe%40unt.edu%7C4d161c6ce562480bfe7308d988816cc3%7C70de199207c6480fa318a1afcba03983%7C0%7C0%7C637690912313800695%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=Z%2F0ucFC4WxltE4wEHZx13J0Ps9zGMcr6XhARHT0hMoE%3D&reserved=0>.”

    Should I already be able to see the guacamole login screen at
    [ip]:8080/guacamole ?

    I’m getting the following error on tomcat manager.

    I just wanted to make sure this is normal behavior and if I should
    continue configuring the rest (i.e. auth, database, etc.)

    Thank you,

    Yo Khoe

    CVAD IT

    University of North Texas

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