I have included a screenshot of what it looks like. It keeps appearing and in the morning you to close it 50 times. Could you please help me identify where the problem lies?NOTE: It's CentOs 6 with tigervnc.    EDITHere is the ps -eaf is at the bottom.This is the detail pane:           UID        PID  PPID  C STIME TTY          TIME CMDroot         1     0  0 15:05 ?        00:00:00 /sbin/initroot         2     0  0 15:05 ?        00:00:00 [kthreadd]root         3     2  0 15:05 ?        00:00:00 [migration/0]root         4     2  0 15:05 ?        00:00:00 [ksoftirqd/0]root         5     2  0 15:05 ?        00:00:00 [migration/0]root         6     2  0 15:05 ?        00:00:00 [watchdog/0]root         7     2  0 15:05 ?        00:00:00 [migration/1]root         8     2  0 15:05 ?        00:00:00 [migration/1]root         9     2  0 15:05 ?        00:00:00 [ksoftirqd/1]root        10     2  0 15:05 ?        00:00:00 [watchdog/1]root        11     2  0 15:05 ?        00:00:00 [migration/2]root        12     2  0 15:05 ?        00:00:00 [migration/2]root        13     2  0 15:05 ?        00:00:00 [ksoftirqd/2]root        14     2  0 15:05 ?        00:00:00 [watchdog/2]root        15     2  0 15:05 ?        00:00:00 [migration/3]root        16     2  0 15:05 ?        00:00:00 [migration/3]root        17     2  0 15:05 ?        00:00:00 [ksoftirqd/3]root        18     2  0 15:05 ?        00:00:00 [watchdog/3]root        19     2  0 15:05 ?        00:00:00 [migration/4]root        20     2  0 15:05 ?        00:00:00 [migration/4]root        21     2  0 15:05 ?        00:00:00 [ksoftirqd/4]root        22     2  0 15:05 ?        00:00:00 [watchdog/4]root        23     2  0 15:05 ?        00:00:00 [migration/5]root        24     2  0 15:05 ?        00:00:00 [migration/5]root        25     2  0 15:05 ?        00:00:00 [ksoftirqd/5]root        26     2  0 15:05 ?        00:00:00 [watchdog/5]root        27     2  0 15:05 ?        00:00:00 [migration/6]root        28     2  0 15:05 ?        00:00:00 [migration/6]root        29     2  0 15:05 ?        00:00:00 [ksoftirqd/6]root        30     2  0 15:05 ?        00:00:00 [watchdog/6]root        31     2  0 15:05 ?        00:00:00 [migration/7]root        32     2  0 15:05 ?        00:00:00 [migration/7]root        33     2  0 15:05 ?        00:00:00 [ksoftirqd/7]root        34     2  0 15:05 ?        00:00:00 [watchdog/7]root        35     2  0 15:05 ?        00:00:00 [events/0]root        36     2  0 15:05 ?        00:00:00 [events/1]root        37     2  0 15:05 ?        00:00:00 [events/2]root        38     2  0 15:05 ?        00:00:00 [events/3]root        39     2  0 15:05 ?        00:00:00 [events/4]root        40     2  0 15:05 ?        00:00:00 [events/5]root        41     2  0 15:05 ?        00:00:00 [events/6]root        42     2  0 15:05 ?        00:00:00 [events/7]root        43     2  0 15:05 ?        00:00:00 [cpuset]root        44     2  0 15:05 ?        00:00:00 [khelper]root        45     2  0 15:05 ?        00:00:00 [netns]root        46     2  0 15:05 ?        00:00:00 [async/mgr]root        47     2  0 15:05 ?        00:00:00 [pm]root        48     2  0 15:05 ?        00:00:00 [xenwatch]root        49     2  0 15:05 ?        00:00:00 [xenbus]root        50     2  0 15:05 ?        00:00:00 [sync_supers]root        51     2  0 15:05 ?        00:00:00 [bdi-default]root        52     2  0 15:05 ?        00:00:00 [kintegrityd/0]root        53     2  0 15:05 ?        00:00:00 [kintegrityd/1]root        54     2  0 15:05 ?        00:00:00 [kintegrityd/2]root        55     2  0 15:05 ?        00:00:00 [kintegrityd/3]root        56     2  0 15:05 ?        00:00:00 [kintegrityd/4]root        57     2  0 15:05 ?        00:00:00 [kintegrityd/5]root        58     2  0 15:05 ?        00:00:00 [kintegrityd/6]root        59     2  0 15:05 ?        00:00:00 [kintegrityd/7]root        60     2  0 15:05 ?        00:00:00 [kblockd/0]root        61     2  0 15:05 ?        00:00:00 [kblockd/1]root        62     2  0 15:05 ?        00:00:00 [kblockd/2]root        63     2  0 15:05 ?        00:00:00 [kblockd/3]root        64     2  0 15:05 ?        00:00:00 [kblockd/4]root        65     2  0 15:05 ?        00:00:00 [kblockd/5]root        66     2  0 15:05 ?        00:00:00 [kblockd/6]root        67     2  0 15:05 ?        00:00:00 [kblockd/7]root        68     2  0 15:05 ?        00:00:00 [ata/0]root        69     2  0 15:05 ?        00:00:00 [ata/1]root        70     2  0 15:05 ?        00:00:00 [ata/2]root        71     2  0 15:05 ?        00:00:00 [ata/3]root        72     2  0 15:05 ?        00:00:00 [ata/4]root        73     2  0 15:05 ?        00:00:00 [ata/5]root        74     2  0 15:05 ?        00:00:00 [ata/6]root        75     2  0 15:05 ?        00:00:00 [ata/7]root        76     2  0 15:05 ?        00:00:00 [ata_aux]root        77     2  0 15:05 ?        00:00:00 [ksuspend_usbd]root        78     2  0 15:05 ?        00:00:00 [khubd]root        79     2  0 15:05 ?        00:00:00 [kseriod]root        80     2  0 15:05 ?        00:00:00 [md/0]root        81     2  0 15:05 ?        00:00:00 [md/1]root        82     2  0 15:05 ?        00:00:00 [md/2]root        83     2  0 15:05 ?        00:00:00 [md/3]root        84     2  0 15:05 ?        00:00:00 [md/4]root        85     2  0 15:05 ?        00:00:00 [md/5]root        86     2  0 15:05 ?        00:00:00 [md/6]root        87     2  0 15:05 ?        00:00:00 [md/7]root        88     2  0 15:05 ?        00:00:00 [md_misc/0]root        89     2  0 15:05 ?        00:00:00 [md_misc/1]root        90     2  0 15:05 ?        00:00:00 [md_misc/2]root        91     2  0 15:05 ?        00:00:00 [md_misc/3]root        92     2  0 15:05 ?        00:00:00 [md_misc/4]root        93     2  0 15:05 ?        00:00:00 [md_misc/5]root        94     2  0 15:05 ?        00:00:00 [md_misc/6]root        95     2  0 15:05 ?        00:00:00 [md_misc/7]root        96     2  0 15:05 ?        00:00:00 [khungtaskd]root        97     2  0 15:05 ?        00:00:00 [kswapd0]root        98     2  0 15:05 ?        00:00:00 [ksmd]root        99     2  0 15:05 ?        00:00:00 [aio/0]root       100     2  0 15:05 ?        00:00:00 [aio/1]root       101     2  0 15:05 ?        00:00:00 [aio/2]root       102     2  0 15:05 ?        00:00:00 [aio/3]root       103     2  0 15:05 ?        00:00:00 [aio/4]root       104     2  0 15:05 ?        00:00:00 [aio/5]root       105     2  0 15:05 ?        00:00:00 [aio/6]root       106     2  0 15:05 ?        00:00:00 [aio/7]root       107     2  0 15:05 ?        00:00:00 [crypto/0]root       108     2  0 15:05 ?        00:00:00 [crypto/1]root       109     2  0 15:05 ?        00:00:00 [crypto/2]root       110     2  0 15:05 ?        00:00:00 [crypto/3]root       111     2  0 15:05 ?        00:00:00 [crypto/4]root       112     2  0 15:05 ?        00:00:00 [crypto/5]root       113     2  0 15:05 ?        00:00:00 [crypto/6]root       114     2  0 15:05 ?        00:00:00 [crypto/7]root       119     2  0 15:05 ?        00:00:00 [kthrotld/0]root       120     2  0 15:05 ?        00:00:00 [kthrotld/1]root       121     2  0 15:05 ?        00:00:00 [kthrotld/2]root       122     2  0 15:05 ?        00:00:00 [kthrotld/3]root       123     2  0 15:05 ?        00:00:00 [kthrotld/4]root       124     2  0 15:05 ?        00:00:00 [kthrotld/5]root       125     2  0 15:05 ?        00:00:00 [kthrotld/6]root       126     2  0 15:05 ?        00:00:00 [kthrotld/7]root       128     2  0 15:05 ?        00:00:00 [khvcd]root       129     2  0 15:05 ?        00:00:00 [kpsmoused]root       130     2  0 15:05 ?        00:00:00 [usbhid_resumer]root       191     1  0 15:05 ?        00:00:00 /bin/plymouthd --attach-to-sessiroot       267     2  0 15:05 ?        00:00:00 [kjournald]root       339     1  0 15:05 ?        00:00:00 /sbin/udevd -droot       648   339  0 15:05 ?        00:00:00 /sbin/udevd -droot       651     2  0 15:05 ?        00:00:00 [kstriped]root       694     2  0 15:05 ?        00:00:00 [flush-202:1]root       716     2  0 15:05 ?        00:00:00 [kauditd]root       717     1  0 15:05 ?        00:00:00 /bin/bash /etc/rc.d/rc 3root       863     1  0 15:05 ?        00:00:00 auditdroot       888     1  0 15:05 ?        00:00:00 /sbin/rsyslogd -i /var/run/sysloroot       902     1  0 15:05 ?        00:00:00 mdadm --monitor --scan -f --pid-dbus       911     1  0 15:05 ?        00:00:00 dbus-daemon --systemroot       921     1  0 15:05 ?        00:00:00 NetworkManager --pid-file=/var/rroot       925     1  0 15:05 ?        00:00:00 /usr/sbin/modem-managerroot       934     1  0 15:05 ?        00:00:00 cupsd -C /etc/cups/cupsd.conf68         992     1  0 15:05 ?        00:00:00 haldroot       993   992  0 15:05 ?        00:00:00 hald-runnerroot       995     1  0 15:05 ?        00:00:00 /usr/sbin/wpa_supplicant -c /etcroot      1040   993  0 15:05 ?        00:00:00 hald-addon-input: Listening on /root      1058     1  0 15:05 ?        00:00:00 /usr/sbin/sshdroot      1069     1  0 15:05 ?        00:00:00 /usr/sbin/vsftpd /etc/vsftpd/vsfroot      1080     1  0 15:05 ?        00:00:00 guacd -p /var/run/guacd.pidroot      1156     1  0 15:05 ?        00:00:00 /usr/libexec/postfix/masterpostfix   1176  1156  0 15:05 ?        00:00:00 pickup -l -t fifo -upostfix   1177  1156  0 15:05 ?        00:00:00 qmgr -l -t fifo -utomcat    1224     1  0 15:05 ?        00:00:02 /usr/lib/jvm/jre/bin/java -Djavaroot      1242     1  0 15:05 ?        00:00:00 crondwesley    1276     1  0 15:05 ?        00:00:01 /usr/bin/Xvnc :1 -desktop vnc.lewesley    1286     1  0 15:06 ?        00:00:00 /usr/bin/ck-xinit-session /usr/bwesley    1290  1286  0 15:06 ?        00:00:00 vncconfig -iconicmark      1313     1  0 15:06 ?        00:00:02 /usr/bin/Xvnc :2 -desktop vnc.lewesley    1320     1  0 15:06 ?        00:00:00 dbus-launch --sh-syntax --exit-wwesley    1321     1  0 15:06 ?        00:00:00 /bin/dbus-daemon --fork --print-root      1327     1  0 15:06 ?        00:00:00 /usr/sbin/console-kit-daemon --nwesley    1395  1286  0 15:06 ?        00:00:00 /usr/bin/gnome-sessionwesley    1397  1395  0 15:06 ?        00:00:00 /usr/bin/ssh-agent /etc/X11/xiniroot      1411     1  0 15:06 ?        00:00:00 /usr/libexec/devkit-power-daemonwesley    1416     1  0 15:06 ?        00:00:00 /usr/libexec/gconfd-2mark      1434     1  0 15:06 ?        00:00:00 /usr/bin/ck-xinit-session /usr/bmark      1435  1434  0 15:06 ?        00:00:00 vncconfig -iconicmark      1450     1  0 15:06 ?        00:00:00 dbus-launch --sh-syntax --exit-wmark      1454     1  0 15:06 ?        00:00:00 /bin/dbus-daemon --fork --print-sylvia    1472     1  0 15:06 ?        00:00:01 /usr/bin/Xvnc :3 -desktop vnc.lemark      1477  1434  0 15:06 ?        00:00:00 /usr/bin/gnome-sessionmark      1478  1477  0 15:06 ?        00:00:00 /usr/bin/ssh-agent /etc/X11/xinimark      1489     1  0 15:06 ?        00:00:00 /usr/libexec/gconfd-2wesley    1491     1  0 15:06 ?        00:00:00 gnome-keyring-daemon --startwesley    1494     1  0 15:06 ?        00:00:00 /usr/libexec/gnome-settings-daemmark      1500     1  0 15:06 ?        00:00:00 gnome-keyring-daemon --startmark      1503     1  0 15:06 ?        00:00:00 /usr/libexec/gnome-settings-daemmark      1511     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsdwesley    1513     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsdmark      1530  1477  0 15:06 ?        00:00:00 metacitywesley    1531  1395  0 15:06 ?        00:00:00 metacitysylvia    1535     1  0 15:06 ?        00:00:00 /usr/bin/ck-xinit-session /usr/bsylvia    1536  1535  0 15:06 ?        00:00:00 vncconfig -iconicsylvia    1552     1  0 15:06 ?        00:00:00 dbus-launch --sh-syntax --exit-wsylvia    1555     1  0 15:06 ?        00:00:00 /bin/dbus-daemon --fork --print-sylvia    1569  1535  0 15:06 ?        00:00:00 /usr/bin/gnome-sessionsylvia    1570  1569  0 15:06 ?        00:00:00 /usr/bin/ssh-agent /etc/X11/xininaomi     1583     1  0 15:06 ?        00:00:01 /usr/bin/Xvnc :4 -desktop vnc.lesylvia    1585     1  0 15:06 ?        00:00:00 /usr/libexec/gconfd-2sylvia    1594     1  0 15:06 ?        00:00:00 gnome-keyring-daemon --startsylvia    1597     1  0 15:06 ?        00:00:00 /usr/libexec/gnome-settings-daemmark      1600  1477  0 15:06 ?        00:00:00 gnome-panelwesley    1601  1395  0 15:06 ?        00:00:00 gnome-panelsylvia    1604     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsdwesley    1612     1  0 15:06 ?        00:00:00 /usr/bin/pulseaudio --start --lomark      1613     1  0 15:06 ?        00:00:00 /usr/bin/pulseaudio --start --lortkit     1615     1  0 15:06 ?        00:00:00 /usr/libexec/rtkit-daemonsylvia    1616  1569  0 15:06 ?        00:00:00 metacityroot      1621     1  0 15:06 ?        00:00:00 /usr/libexec/polkit-1/polkitdsylvia    1622  1569  0 15:06 ?        00:00:00 gnome-panelsylvia    1625     1  0 15:06 ?        00:00:00 /usr/bin/pulseaudio --start --lowesley    1626  1612  0 15:06 ?        00:00:00 /usr/libexec/pulse/gconf-helpermark      1627  1613  0 15:06 ?        00:00:00 /usr/libexec/pulse/gconf-helpersylvia    1628  1625  0 15:06 ?        00:00:00 /usr/libexec/pulse/gconf-helpermark      1631  1477  0 15:06 ?        00:00:00 nautilusmark      1633     1  0 15:06 ?        00:00:00 /usr/libexec/bonobo-activation-swesley    1634  1395  0 15:06 ?        00:00:00 nautiluswesley    1636     1  0 15:06 ?        00:00:00 /usr/libexec/bonobo-activation-ssylvia    1640  1569  0 15:06 ?        00:00:01 nautilussylvia    1642     1  0 15:06 ?        00:00:00 /usr/libexec/bonobo-activation-smark      1655     1  0 15:06 ?        00:00:00 /usr/libexec/wnck-applet --oaf-asylvia    1658     1  0 15:06 ?        00:00:00 /usr/libexec/wnck-applet --oaf-asylvia    1661     1  0 15:06 ?        00:00:00 /usr/libexec/trashapplet --oaf-awesley    1662     1  0 15:06 ?        00:00:00 /usr/libexec/wnck-applet --oaf-asylvia    1666     1  0 15:06 ?        00:00:00 /usr/libexec/gvfs-gdu-volume-monwesley    1667     1  0 15:06 ?        00:00:00 /usr/libexec/gvfs-gdu-volume-monwesley    1668     1  0 15:06 ?        00:00:00 /usr/libexec/trashapplet --oaf-amark      1669     1  0 15:06 ?        00:00:00 /usr/libexec/trashapplet --oaf-amark      1671     1  0 15:06 ?        00:00:00 /usr/libexec/gvfs-gdu-volume-monroot      1673     1  0 15:06 ?        00:00:00 /usr/libexec/udisks-daemonmark      1684     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsd-trash --spawnwesley    1686     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsd-trash --spawnsylvia    1688     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsd-trash --spawnroot      1689  1673  0 15:06 ?        00:00:00 udisks-daemon: not polling any dsylvia    1693  1569  0 15:06 ?        00:00:00 gpk-update-iconmark      1694  1477  0 15:06 ?        00:00:00 gpk-update-iconwesley    1695  1395  0 15:06 ?        00:00:00 gpk-update-iconmark      1705  1477  0 15:06 ?        00:00:00 /usr/libexec/polkit-gnome-authensylvia    1706  1569  0 15:06 ?        00:00:00 /usr/libexec/polkit-gnome-authenwesley    1707  1395  0 15:06 ?        00:00:00 /usr/libexec/polkit-gnome-authenwesley    1714  1395  0 15:06 ?        00:00:00 xdg-user-dirs-gtk-updatewesley    1717  1395  0 15:06 ?        00:00:00 gnome-power-managersylvia    1720  1569  0 15:06 ?        00:00:00 xdg-user-dirs-gtk-updatesylvia    1721  1569  0 15:06 ?        00:00:00 gnome-power-managermark      1725  1477  0 15:06 ?        00:00:00 gnome-power-managerwesley    1734  1395  0 15:06 ?        00:00:00 gnome-volume-control-appletsylvia    1735  1569  0 15:06 ?        00:00:00 gnome-volume-control-appletmark      1737  1477  0 15:06 ?        00:00:00 gnome-volume-control-appletsylvia    1768     1  0 15:06 ?        00:00:00 gnome-screensaverwesley    1769     1  0 15:06 ?        00:00:00 gnome-screensavernaomi     1773     1  0 15:06 ?        00:00:00 /usr/bin/ck-xinit-session /usr/bnaomi     1775  1773  0 15:06 ?        00:00:00 vncconfig -iconicnaomi     1787     1  0 15:06 ?        00:00:00 dbus-launch --sh-syntax --exit-wnaomi     1792     1  0 15:06 ?        00:00:00 /bin/dbus-daemon --fork --print-mark      1804     1  0 15:06 ?        00:00:00 gnome-screensavernaomi     1807  1773  0 15:06 ?        00:00:00 /usr/bin/gnome-sessionnaomi     1808  1807  0 15:06 ?        00:00:00 /usr/bin/ssh-agent /etc/X11/xiniroot      1814     1  0 15:06 ?        00:00:00 /usr/sbin/atdroot      1819   717  0 15:06 ?        00:00:00 /bin/bash /etc/rc3.d/S99firstboonaomi     1823     1  0 15:06 ?        00:00:00 /usr/libexec/gconfd-2root      1827  1819  0 15:06 ?        00:00:00 /usr/bin/python2 /usr/sbin/firstmark      1831     1  0 15:06 ?        00:00:00 /usr/libexec/gdm-user-switch-appmark      1833     1  0 15:06 ?        00:00:00 /usr/libexec/clock-applet --oaf-mark      1835     1  0 15:06 ?        00:00:00 /usr/libexec/notification-area-asylvia    1841     1  0 15:06 ?        00:00:00 /usr/libexec/gdm-user-switch-appsylvia    1843     1  0 15:06 ?        00:00:00 /usr/libexec/notification-area-asylvia    1846     1  0 15:06 ?        00:00:00 /usr/libexec/clock-applet --oaf-wesley    1850     1  0 15:06 ?        00:00:00 /usr/libexec/gdm-user-switch-appwesley    1852     1  0 15:06 ?        00:00:00 /usr/libexec/clock-applet --oaf-wesley    1854     1  0 15:06 ?        00:00:00 /usr/libexec/notification-area-anaomi     1864     1  0 15:06 ?        00:00:00 gnome-keyring-daemon --startnaomi     1867     1  0 15:06 ?        00:00:00 /usr/libexec/gnome-settings-daemnaomi     1873     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsdnaomi     1879  1807  0 15:06 ?        00:00:00 metacitynaomi     1881  1807  0 15:06 ?        00:00:00 gnome-panelnaomi     1896     1  0 15:06 ?        00:00:00 /usr/bin/pulseaudio --start --lonaomi     1901  1807  0 15:06 ?        00:00:00 nautilusnaomi     1904     1  0 15:06 ?        00:00:00 /usr/libexec/bonobo-activation-snaomi     1907  1807  0 15:06 ?        00:00:00 gpk-update-iconnaomi     1910  1807  0 15:06 ?        00:00:00 /usr/libexec/polkit-gnome-authennaomi     1917     1  0 15:06 ?        00:00:00 /usr/libexec/wnck-applet --oaf-anaomi     1920     1  0 15:06 ?        00:00:00 /usr/libexec/trashapplet --oaf-anaomi     1921  1807  0 15:06 ?        00:00:00 xdg-user-dirs-gtk-updatenaomi     1922  1807  0 15:06 ?        00:00:00 gnome-power-managernaomi     1927  1807  0 15:06 ?        00:00:00 gnome-volume-control-appletnaomi     1933     1  0 15:06 ?        00:00:00 /usr/libexec/gvfs-gdu-volume-monnaomi     1934  1896  0 15:06 ?        00:00:00 /usr/libexec/pulse/gconf-helpernaomi     1945     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsd-trash --spawnnaomi     1952     1  0 15:06 ?        00:00:00 gnome-screensavernaomi     1958     1  0 15:06 ?        00:00:00 /usr/libexec/clock-applet --oaf-naomi     1959     1  0 15:06 ?        00:00:00 /usr/libexec/gdm-user-switch-appnaomi     1961     1  0 15:06 ?        00:00:00 /usr/libexec/notification-area-amark      1972     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsd-metadatawesley    1983     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsd-metadatasylvia    1993     1  0 15:06 ?        00:00:00 /usr/libexec/gvfsd-metadataroot      2003  1827  0 15:06 ?        00:00:00 setuproot      2040  1706  0 15:20 ?        00:00:00 /usr/libexec/polkit-1/polkit-ageroot      2041  1910  0 15:20 ?        00:00:00 /usr/libexec/polkit-1/polkit-ageroot      2044  1705  0 15:20 ?        00:00:00 /usr/libexec/polkit-1/polkit-ageroot      2062  1058  0 15:37 ?        00:00:00 sshd: root@pts/0root      2068  2062  0 15:37 pts/0    00:00:00 -bashroot      2086  2068  0 15:39 pts/0    00:00:00 ps -eaf
A messagebox keeping popping up in my centos VNC server asking to change proxy settings?
centos;authentication;vnc
This would appear to be the process, gpk-update-icon that's responsible for this authentication window being popped open.You could try this solution:Sorry for the misunderstanding. The app is for the Gnome Package kit, many people have reported that they fixed it by removing gnome and using another window manager, and other have said that you can go to System->Preferences->Personal->Sessions and Untick PackageKit Update Applet to stop the applet.Source: http://www.linux.com/community/forums/desktop/gpk-update-iconI would merely try unticking the PackageKit Update Applet as a workaround.