Ok I'll check firewalld but does this error help? Note the path has lib64:
/usr/lib64/x2go/x2gogetfreeport $(hostname) "$(which ss)" display 50
/usr/lib64/x2go/x2gocheckport: line 131:
connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
50
On Mon, Jan 25, 2021, 5:49 PM Ulrich Sibiller <ulrich.sibil...@gmail.com>
wrote:
> Well, here's the code producing that output:
>
> typeset -i retry='0'
> typeset -i max_retry='10'
> typeset output=''
> for ((retry = 0; retry < max_retry; ++retry)); do
> typeset -i free_port="${X2GO_PORT}"
> if free_port="$("${X2GO_LIB_PATH}/x2gogetfreeport"
> "${current_host_name}" "${ss}" 'display' "${X2GO_PORT}")"; then
> X2GO_PORT="${free_port}"
>
> if [[ -n "${SHADREQ_USER}" ]]; then
>
> SESSION_NAME="${SHADREQ_USER}-${X2GO_PORT}-$(date '+%s')"
> else
> SESSION_NAME="${USER}-${X2GO_PORT}-$(date '+%s')"
> fi
> if [[ -n "${COLORDEPTH}" ]]; then
>
> SESSION_NAME="${SESSION_NAME}_st${SESSION_TYPE}${X2GO_CMD}_dp${COLORDEPTH}"
> SESSION_NAME="${SESSION_NAME//:/PP}"
> fi
>
> # sanitize session name
> SESSION_NAME="$(perl -pe 's/[^a-zA-Z0-9\.\_\-\@]//g'
> <<< "${SESSION_NAME}")"
>
> if [[ -n "${SHADREQ_USER}" ]]; then
> "${X2GO_LIB_PATH}/x2gosyslog" "${0}" 'debug'
> "initializing new shadow session with ID ${SESSION_NAME}"
>
> output="$("${X2GO_LIB_PATH}/x2goinsertshadowsession" "${X2GO_PORT}"
> "${current_host_name}" "${SESSION_NAME}" "${SHADREQ_USER}")"
> else
> "${X2GO_LIB_PATH}/x2gosyslog" "${0}" 'debug'
> "initializing new session with ID ${SESSION_NAME}"
> output="$("${X2GO_LIB_PATH}/x2goinsertsession"
> "${X2GO_PORT}" "${current_host_name}" "${SESSION_NAME}")"
> fi
>
> if [[ "${output}" = 'inserted' ]]; then
> break
> else
> "${X2GO_LIB_PATH}/x2gosyslog" "${0}" 'warning'
> "unable to insert display port into database. Retrying (run $((retry +
> 1)))."
> fi
> else
> "${X2GO_LIB_PATH}/x2gosyslog" "${0}" 'warning' "no
> free display number available, cannot start new session. Retrying (run
> $((retry + 1)))."
> fi
> done
>
> if [[ "${output}" != 'inserted' ]]; then
> typeset msg="Unable to find free display port or insert new
> session into database; parameters: port (${X2GO_PORT}), hostname
> (${current_host_name}) and session name (${SESSION_NAME})."
> "${X2GO_LIB_PATH}/x2gosyslog" "${0}" 'err' "${msg}"
>
> # Make x2goclient fail.
> echo "${msg}" >&2
> exit '10'
> fi
>
>
> This boils down to
>
> for ((retry = 0; retry < max_retry; ++retry)); do
> typeset -i free_port="${X2GO_PORT}"
> if free_port="$("${X2GO_LIB_PATH}/x2gogetfreeport"
> "${current_host_name}" "${ss}" 'display' "${X2GO_PORT}")"; then
> ...
> else
> "${X2GO_LIB_PATH}/x2gosyslog" "${0}" 'warning' "no
> free display number available, cannot start new session. Retrying (run
> $((retry + 1)))."
> fi
> done
>
> -> as you can see x2gofreeport does not seem to report the port as
> free. You can try this manually:
>
> /usr/lib/x2go/x2gogetfreeport $(hostname) "$(which ss)" display 50
>
> If that will output a free port x2go should generally work. If not,
> you still have something running and blocking these ports. You can
> check with lsof -i :6050 and you will see who is blocking the first
> checked port.
>
> You can also run the x2gogefreeport with bash -x:
> bash -x /usr/lib/x2go/x2gogetfreeport $(hostname) "$(which ss)" display 50
>
> and see what going on.
>
> Hope that helps,
>
> Uli
>
>
>
>
> On Mon, Jan 25, 2021 at 8:50 PM Robert Kudyba <rkud...@fordham.edu> wrote:
> >
> > I posted a similar issue back in Nov, 2020 at
> https://www.mail-archive.com/x2go-dev@lists.x2go.org/msg06284.html
> >
> > rpm -qa|grep -i x2go
> > x2goclient-4.1.2.2-3.fc33.x86_64
> > x2goserver-common-4.1.0.3-9.fc33.noarch
> > perl-X2Go-Server-4.1.0.3-9.fc33.noarch
> > perl-X2Go-Log-4.1.0.3-9.fc33.noarch
> > perl-X2Go-Server-DB-4.1.0.3-9.fc33.x86_64
> > x2goagent-4.1.0.3-9.fc33.x86_64
> > x2goserver-xsession-4.1.0.3-9.fc33.noarch
> > x2goserver-4.1.0.3-9.fc33.x86_64
> >
> > nxagent -display :55
> > NXAGENT - Version 3.5.99.25
> >
> > Jan 25 14:14:29 pascal /usr/bin/x2gostartagent[39654]: no free display
> number available, cannot start new session. Retrying (run 1).
> > Jan 25 14:14:30 pascal /usr/bin/x2gostartagent[39663]: no free display
> number available, cannot start new session. Retrying (run 2).
> > Jan 25 14:14:30 pascal /usr/bin/x2gostartagent[39672]: no free display
> number available, cannot start new session. Retrying (run 3).
> > Jan 25 14:14:30 pascal /usr/bin/x2gostartagent[39681]: no free display
> number available, cannot start new session. Retrying (run 4).
> > Jan 25 14:14:30 pascal /usr/bin/x2gostartagent[39690]: no free display
> number available, cannot start new session. Retrying (run 5).
> > Jan 25 14:14:30 pascal /usr/bin/x2gostartagent[39699]: no free display
> number available, cannot start new session. Retrying (run 6).
> > Jan 25 14:14:30 pascal /usr/bin/x2gostartagent[39708]: no free display
> number available, cannot start new session. Retrying (run 7).
> > Jan 25 14:14:30 pascal /usr/bin/x2gostartagent[39717]: no free display
> number available, cannot start new session. Retrying (run 8).
> > Jan 25 14:14:31 pascal /usr/bin/x2gostartagent[39726]: no free display
> number available, cannot start new session. Retrying (run 9).
> > Jan 25 14:14:31 pascal /usr/bin/x2gostartagent[39736]: no free display
> number available, cannot start new session. Retrying (run 10).
> > Jan 25 14:14:31 pascal /usr/bin/x2gostartagent[39737]: Unable to find
> free display port or insert new session into database; parameters: port
> (50), hostname (pascal.dsm.fordham.edu) and session name ().
> > Jan 25 14:14:31 pascal kernel: kauditd_printk_skb: 21 callbacks
> suppressed
> >
> > Let me to
> https://unix.stackexchange.com/questions/467507/x2go-unable-to-find-free-display-port-or-insert-new-session-into-database
> so I ran x2godbadmin --createdb
> >
> > Then I tried with another use and got:
> > Connection failed.
> > /usr/lib64/x2go/x2gocheckport: line 131:
> connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
> expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
> > /usr/lib64/x2go/x2gocheckport: line 131:
> connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
> expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
> > /usr/lib64/x2go/x2gocheckport: line 131:
> connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
> expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
> > /usr/lib64/x2go/x2gocheckport: line 131:
> connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
> expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
> > /usr/lib64/x2go/x2gocheckport: line 131:
> connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
> expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
> > /usr/lib64/x2go/x2gocheckport: line 131:
> connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
> expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
> > /usr/lib64/x2go/x2gocheckport: line 131:
> connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
> expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
> > /usr/lib64/x2go/x2gocheckport: line 131:
> connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
> expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
> > /usr/lib64/x2go/x2gocheckport: line 131:
> connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
> expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
> > /usr/lib64/x2go/x2gocheckport: line 131:
> connect('dbname=/var/lib/x2go/x2go_sessions','',...): syntax error in
> expression (error token is "('dbname=/var/lib/x2go/x2go_sessions','',...)")
> > Unable to find free display port or insert new session into database;
> parameters: port (50), hostname (oudomain.edu) and session name ().
> >
> > How does one start X2Go Windows with debug enabled? I only found for Mac
> you can add the --debug flag.
> >
> > My colleague also had this error:
> >
> >
> > XSession-x2go: X session started for moniot at Mon Jan 25 09:01:13 EST
> 2021
> > ** Message: 09:01:15.605: couldn't access control socket:
> /run/user/1200/keyring/control: No such file or directory
> > SSH_AUTH_SOCK=/run/user/1200/keyring/ssh
> >
> > ** (mate-settings-daemon:1436112): WARNING **: 09:01:16.172: Could not
> open RFKILL control device, please verify your installation
> > SSH_AUTH_SOCK=/run/user/1200/keyring/ssh
> > SSH_AUTH_SOCK=/run/user/1200/keyring/ssh
> > vmware-user: could not open /proc/fs/vmblock/dev
> > Error: /usr/bin/vmtoolsd must be run inside a virtual machine on a
> VMware hypervisor product.
> > SSH_AUTH_SOCK=/run/user/1200/keyring/ssh
> >
> > (caja:1436133): Gtk-WARNING **: 09:01:17.552: Failed to register client:
> GDBus.Error:org.gnome.SessionManager.AlreadyRegistered: Unable to register
> client
> > *** ERROR ***
> > TI:09:01:17 TH:0x56299587f960 FI:gpm-manager.c
> FN:gpm_manager_systemd_inhibit,1786
> > - Error in dbus - GDBus.Error:org.freedesktop.DBus.Error.AccessDenied:
> Permission denied
> > Traceback:
> > mate-power-manager(+0x1d474) [0x562995487474]
> > mate-power-manager(+0x136ab) [0x56299547d6ab]
> > /lib64/libgobject-2.0.so.0(g_type_create_instance+0x248)
> [0x7f04c0b72498]
> > /lib64/libgobject-2.0.so.0(+0x19205) [0x7f04c0b58205]
> > /lib64/libgobject-2.0.so.0(g_object_new_with_properties+0x1dd)
> [0x7f04c0b596ad]
> > /lib64/libgobject-2.0.so.0(g_object_new+0xc1) [0x7f04c0b5a331]
> > mate-power-manager(+0x15f16) [0x56299547ff16]
> > mate-power-manager(+0xb20a) [0x56299547520a]
> > /lib64/libc.so.6(__libc_start_main+0xf2) [0x7f04c0708082]
> > mate-power-manager(+0xb58e) [0x56299547558e]
> > Failure: Module initialization failed
> > SELinux Troubleshooter: Applet requires SELinux be enabled to run
> > Initializing caja-open-terminal extension
> > Initializing caja-xattr-tags extension
> > Initializing caja-image-converter extension
> > ICE default IO error handler doing an exit(), pid = 1436318, errno = 32
> >
> > (mate-settings-daemon:1436112): GLib-GIO-WARNING **: 09:02:44.229: Error
> releasing name org.mate.SettingsDaemon.Rfkill: The connection is closed
> > [1611583276,000,xklavier.c:xkl_engine_start_listen/] The backend does
> not require manual layout management - but it is provided by the application
> >
> >
> >
>
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