Thanks unSpawn,

here the results for s2u :

[rob@hpsmall ~]$ which s2u;
/usr/bin/s2u
[rob@hpsmall ~]$ locate s2u
/etc/X11/xinit.d/s2u
/etc/dbus-1/system.d/s2u.conf
/etc/sysconfig/network-scripts/hostname.d/s2u
/usr/bin/s2u
/usr/share/doc/s2u
/usr/share/doc/s2u/AUTHORS
/usr/share/doc/s2u/ChangeLog
/usr/share/doc/s2u/LICENSE
/usr/share/doc/s2u/README

and here is the content of /usr/share/doc/s2u/README:

This tool is used to send messages between the system and users'
accounts.

For each X11 session a small program called s2u is launched under an
X11 dbus session (using existing one if possible). The s2u program
waits then for dbus messages to take the appropriate actions. The
implemented actions are:

o react to hostname changes to continue to have a working X11 session.
o run update-menus if requested by the system
o display msec notifications
o display custom notifications (netprofile, ...)

For my point of view that is a totally unnecessary program, do you agree ?
But here we got the minstrel for the red box !

Now I'm waiting for next appearance of bluetooth process, I never ever before typed so many times ps ax
meanwhile thanks to everybody looking after me
more if I got the bluetooth process again
robeich

I'd say get to know the distribution you use better by just using it to the fullest and doing research. Then there'll be less situations that look anomalous. And I have no opinion about the usefulness of s2u. Only you can determine that and should share the responsibility for potentially breaking things by disabling it ;-p


The reason I asked you to run 'lsmod; grep -r /etc/modprobe.conf /etc/modprobe.d -e bluetooth 2>/dev/null' in addition is that if anything causes any BT modules to load you can blacklist them.


* Finally I'm moving this thread out of the Linux Security forum and into the Newbie forum as it is more appropriate there in the absence of any security issues.

Thanks unSpawn,
lesson learned.
robeich

The bluetooth story goes on, here the latest news:

[root@hpsmall log]# grep -i bluetooth messages
Apr 6 11:52:06 hpsmall klogd: Bluetooth: Core ver 2.15
Apr 6 11:52:06 hpsmall klogd: Bluetooth: HCI device and connection manager initialized
Apr 6 11:52:06 hpsmall klogd: Bluetooth: HCI socket layer initialized
Apr 6 19:42:08 hpsmall klogd: Bluetooth: Core ver 2.15
Apr 6 19:42:08 hpsmall klogd: Bluetooth: HCI device and connection manager initialized
Apr 6 19:42:08 hpsmall klogd: Bluetooth: HCI socket layer initialized
Apr 7 12:32:46 hpsmall klogd: Bluetooth: Core ver 2.15
Apr 7 12:32:46 hpsmall klogd: Bluetooth: HCI device and connection manager initialized
Apr 7 12:32:46 hpsmall klogd: Bluetooth: HCI socket layer initialized
Apr 8 10:39:54 hpsmall klogd: Bluetooth: Core ver 2.15
Apr 8 10:39:54 hpsmall klogd: Bluetooth: HCI device and connection manager initialized
Apr 8 10:39:54 hpsmall klogd: Bluetooth: HCI socket layer initialized
Apr 12 13:06:41 hpsmall klogd: Bluetooth: Core ver 2.15
Apr 12 13:06:41 hpsmall klogd: Bluetooth: HCI device and connection manager initialized
Apr 12 13:06:41 hpsmall klogd: Bluetooth: HCI socket layer initialized
Apr 12 13:36:42 hpsmall klogd: Bluetooth: Core ver 2.15
Apr 12 13:36:42 hpsmall klogd: Bluetooth: HCI device and connection manager initialized
Apr 12 13:36:42 hpsmall klogd: Bluetooth: HCI socket layer initialized
Apr 22 21:31:48 hpsmall klogd: Bluetooth: Core ver 2.15
Apr 22 21:31:48 hpsmall klogd: Bluetooth: HCI device and connection manager initialized
Apr 22 21:31:48 hpsmall klogd: Bluetooth: HCI socket layer initialized

[root@hpsmall log]# which Bluetooth
which: no Bluetooth in (/sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin:/usr/local/bin:/usr/local/sbin:/usr/lib/qt4/bin)

[root@hpsmall log]# whereis Bluetooth
Bluetooth:

[root@hpsmall log]# locate Bluetooth

[root@hpsmall log]# date
Fri Apr 22 22:02:38 IST 2011

[root@hpsmall log]# whatis Bluetooth
Bluetooth: nothing appropriate

[root@hpsmall log]# lsmod; grep -r /etc/modprobe.conf /etc/modprobe.d -e bluetooth 2>/dev/null
Module Size Used by
bluetooth 106756 0
rfkill 23480 1 bluetooth
fuse 69712 2
af_packet 24304 2
ipt_IFWLOG 3704 2
ipt_psd 48400 1
xt_time 3216 0
xt_connlimit 5080 0
xt_realm 1904 0
iptable_raw 2576 0
xt_comment 1936 20
xt_recent 12416 0
xt_policy 3568 0
ipt_ULOG 13224 0
ipt_REJECT 3696 2
ipt_REDIRECT 3056 0
ipt_NETMAP 3024 0
ipt_MASQUERADE 4048 0
ipt_ECN 2992 0
ipt_ecn 2416 0
ipt_CLUSTERIP 9368 0
ipt_ah 2096 0
ipt_addrtype 3024 4
nf_nat_tftp 1968 0
nf_nat_snmp_basic 10232 0
nf_nat_sip 7856 0
nf_nat_pptp 6224 0
nf_nat_proto_gre 4404 1 nf_nat_pptp
nf_nat_irc 3216 0
nf_nat_h323 10672 0
nf_nat_ftp 4848 0
nf_nat_amanda 2384 0
ts_kmp 2704 5
nf_conntrack_amanda 4944 1 nf_nat_amanda
nf_conntrack_sane 7444 0
nf_conntrack_tftp 6628 1 nf_nat_tftp
nf_conntrack_sip 22852 1 nf_nat_sip
nf_conntrack_proto_sctp 15292 0
nf_conntrack_pptp 14740 1 nf_nat_pptp
nf_conntrack_proto_gre 9300 1 nf_conntrack_pptp
nf_conntrack_netlink 20496 0
nf_conntrack_netbios_ns 3024 0
nf_conntrack_irc 7880 1 nf_nat_irc
nf_conntrack_h323 70992 1 nf_nat_h323
nf_conntrack_ftp 15176 1 nf_nat_ftp
ipt_set 2512 2
ipt_SET 2768 0
ip_set_nethash 10144 0
ip_set_iptreemap 10432 0
ip_set_iptree 7488 2
ip_set_ipporthash 9120 0
ip_set_portmap 5120 0
ip_set_macipmap 4896 0
ip_set_ipmap 4800 0
ip_set_iphash 8256 0
ip_set 22812 18 ipt_set,ipt_SET,ip_set_nethash,ip_set_iptreemap,ip_set_iptree,ip_set_ipporthash,ip_set_portmap,ip_se t_macipmap,ip_set_ipmap,ip_set_iphash
xt_tcpmss 2576 0
xt_pkttype 2064 0
xt_physdev 2688 0
xt_owner 3184 0
xt_NFQUEUE 3344 0
xt_NFLOG 2128 0
nfnetlink_log 11300 1 xt_NFLOG
xt_multiport 3696 6
xt_MARK 3280 0
xt_mark 2640 0
xt_mac 2000 0
xt_limit 3412 0
xt_length 2224 0
xt_iprange 4112 0
xt_helper 2576 0
xt_hashlimit 12176 0
xt_DSCP 3920 0
xt_dscp 3088 0
xt_dccp 3392 0
xt_conntrack 5744 0
xt_CONNMARK 3696 0
xt_connmark 3152 0
xt_CLASSIFY 1968 0
ipt_LOG 7188 6
xt_tcpudp 3760 11
xt_state 2576 9
iptable_nat 7632 0
nf_nat 26532 12 ipt_REDIRECT,ipt_NETMAP,ipt_MASQUERADE,nf_nat_tftp,nf_nat_sip,nf_nat_pptp,nf_nat_proto_gre,nf_nat_ir c,nf_nat_h323,nf_nat_ftp,nf_nat_amanda,iptable_nat
nf_conntrack_ipv4 19272 12 iptable_nat,nf_nat
nf_defrag_ipv4 2416 1 nf_conntrack_ipv4
nf_conntrack 91296 31 xt_connlimit,ipt_MASQUERADE,ipt_CLUSTERIP,nf_nat_tftp,nf_nat_snmp_basic,nf_nat_sip,nf_nat_pptp,nf_na t_irc,nf_nat_h323,nf_nat_ftp,nf_nat_amanda,nf_conntrack_amanda,nf_conntrack_sane,nf_conntrack_tftp,n f_conntrack_sip,nf_conntrack_proto_sctp,nf_conntrack_pptp,nf_conntrack_proto_gre,nf_conntrack_netlin k,nf_conntrack_netbios_ns,nf_conntrack_irc,nf_conntrack_h323,nf_conntrack_ftp,xt_helper,xt_conntrack ,xt_CONNMARK,xt_connmark,xt_state,iptable_nat,nf_nat,nf_conntrack_ipv4
iptable_mangle 3280 1
nfnetlink 6064 2 nf_conntrack_netlink,nfnetlink_log
iptable_filter 3280 1
ip_tables 20512 4 iptable_raw,iptable_nat,iptable_mangle,iptable_filter
x_tables 26552 47 ipt_IFWLOG,ipt_psd,xt_time,xt_connlimit,xt_realm,xt_comment,xt_recent,xt_policy,ipt_ULOG,ipt_REJECT, ipt_REDIRECT,ipt_NETMAP,ipt_MASQUERADE,ipt_ECN,ipt_ecn,ipt_CLUSTERIP,ipt_ah,ipt_addrtype,ipt_set,ipt _SET,xt_tcpmss,xt_pkttype,xt_physdev,xt_owner,xt_NFQUEUE,xt_NFLOG,xt_multiport,xt_MARK,xt_mark,xt_ma c,xt_limit,xt_length,xt_iprange,xt_helper,xt_hashlimit,xt_DSCP,xt_dscp,xt_dccp,xt_conntrack,xt_CONNM ARK,xt_connmark,xt_CLASSIFY,ipt_LOG,xt_tcpudp,xt_state,iptable_nat,ip_tables
ipv6 335120 20
snd_hda_codec_realtek 295284 1
snd_hda_intel 31368 2
snd_hda_codec 90768 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 9848 1 snd_hda_codec
snd_seq_dummy 3540 0
snd_seq_oss 36864 0
snd_seq_midi_event 8880 1 snd_seq_oss
snd_seq 65696 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 8740 3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss 51584 0
snd_pcm 100248 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_timer 26720 2 snd_seq,snd_pcm
snd_mixer_oss 19568 1 snd_pcm_oss
snd 79784 15 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq_oss,snd_seq,snd_seq_device,snd_p cm_oss,snd_pcm,snd_timer,snd_mixer_oss
soundcore 9920 1 snd
snd_page_alloc 11072 2 snd_hda_intel,snd_pcm
pcspkr 3216 0
sg 35776 0
i2c_piix4 14912 0
shpchp 38316 0
tg3 121076 0
pci_hotplug 33888 1 shpchp
libphy 28944 1 tg3
radeon 373376 0
drm 197120 1 radeon
i2c_core 35008 2 i2c_piix4,drm
binfmt_misc 10076 1
dm_mod 80488 0
nvram 9308 0
amd64_edac_mod 23744 0
edac_core 50364 1 amd64_edac_mod
k8temp 5584 0
evdev 12608 8
button 6960 0
thermal 16880 0
processor 41868 0
ata_generic 6196 0
ide_pci_generic 5204 0
pata_acpi 5552 0
atiixp 4596 0
ide_gd_mod 29336 0
ide_core 125248 3 ide_pci_generic,atiixp,ide_gd_mod
pata_atiixp 6256 3
libata 203884 3 ata_generic,pata_acpi,pata_atiixp
usb_storage 66784 2
uhci_hcd 29712 0
ohci_hcd 36748 0
ehci_hcd 55232 0
usbcore 219476 5 usb_storage,uhci_hcd,ohci_hcd,ehci_hcd
sd_mod 40552 7
scsi_mod 186520 4 sg,libata,usb_storage,sd_mod
crc_t10dif 2160 1 sd_mod
ext4 360416 4
jbd2 90912 1 ext4
crc16 2320 1 ext4

ps ax could not find a bluetooth process !
any suggestions anybody ?