ATTENTION: Virus, spy-ware, or harmless?

Questions about other topics - please check if your question fits better in another category before posting here
Forum rules
Before you post read how to get help. Topics in this forum are automatically closed 6 months after creation.
User avatar
Dr.U
Level 2
Level 2
Posts: 64
Joined: Wed Jan 03, 2007 10:24 am
Location: Ettlingen, Germany

ATTENTION: Virus, spy-ware, or harmless?

Post by Dr.U »

Hi, everyone!

My first post (Internet connection upon startup) seems to have stirred little interest or perhaps no one has an answer. But something very suspicious is occurring in my Linux Mint 2.1 installation, and I DON'T LIKE IT!! Here is what is occurring:

Beyond what was stated in my first post, I now know that starting almost ANY Gnome application initiates the opening of an internet connection (to where?) and the transmission of data of some sort or other :!: This happens, for example, when starting Nautilus, gedit, Gnome Control Center, the menu layout editor (alacarte), and others.

I have downloaded the simple editor mousepad, and see there: no internet connection is opened when mousepad starts!

When I turn off my router, starting any of the Gnome applications mentioned (and those not mentioned that open internet connections) takes about 24 seconds and longer before their GUI appears on the screen -- apparently the opening of an internet connection is being attempted, and this eventually times-out, whereupon the application GUI finally appears.

I view this as a grave security threat and want to know just what the hell is going on here, how can I prevent it from occurring and who else among you is having this problem :?:

Thanks in advance,
-- Dr.U
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
scorp123
Level 8
Level 8
Posts: 2272
Joined: Sat Dec 02, 2006 4:19 pm
Location: Switzerland

Re: ATTENTION: Virus, spy-ware, or harmless?

Post by scorp123 »

Dr.U wrote: But something very suspicious is occurring in my Linux Mint 2.1 installation, and I DON'T LIKE IT!!
Are you on dial-up or on broadband? Can you please do the following when this happens again: Open a terminal and type this command:

Code: Select all

sudo ps -efH
And then this one too:

Code: Select all

sudo lsof -n -i -P
Post the output of these two commands here please.

Chances are that this is the update-checker checking for software updates.

Regards,
scorp123
User avatar
Dr.U
Level 2
Level 2
Posts: 64
Joined: Wed Jan 03, 2007 10:24 am
Location: Ettlingen, Germany

Thanks for quick replies!

Post by Dr.U »

Here is the output from ps -efH when a connection has been opened:

Code: Select all

UID        PID  PPID  C STIME TTY          TIME CMD
root         1     0  0 15:47 ?        00:00:01 /sbin/init splash nopcmcia
root         2     1  0 15:47 ?        00:00:00   [migration/0]
root         3     1  0 15:47 ?        00:00:00   [ksoftirqd/0]
root         4     1  0 15:47 ?        00:00:00   [watchdog/0]
root         5     1  0 15:47 ?        00:00:00   [events/0]
root         6     1  0 15:47 ?        00:00:00   [khelper]
root         7     1  0 15:47 ?        00:00:00   [kthread]
root         9     7  0 15:47 ?        00:00:00     [kblockd/0]
root        10     7  0 15:47 ?        00:00:00     [kacpid]
root        11     7  0 15:47 ?        00:00:00     [kacpi_notify]
root        81     7  0 15:47 ?        00:00:00     [kseriod]
root       112     7  0 15:47 ?        00:00:00     [pdflush]
root       113     7  0 15:47 ?        00:00:00     [pdflush]
root       115     7  0 15:47 ?        00:00:00     [aio/0]
root      1769     7  0 15:47 ?        00:00:00     [khubd]
root      1848     7  0 15:47 ?        00:00:00     [kjournald]
root      2817     7  0 15:47 ?        00:00:00     [shpchpd]
root      2869     7  0 15:48 ?        00:00:00     [kgameportd]
root      3367     7  0 15:48 ?        00:00:00     [kjournald]
root      3369     7  0 15:48 ?        00:00:00     [kjournald]
root      3371     7  0 15:48 ?        00:00:00     [kjournald]
root      3373     7  0 15:48 ?        00:00:00     [kjournald]
root      3375     7  0 15:48 ?        00:00:00     [kjournald]
root       114     1  0 15:47 ?        00:00:00   [kswapd0]
root      1950     1  0 15:47 ?        00:00:00   //sbin/logd
root      2128     1  0 15:47 ?        00:00:01   /sbin/udevd --daemon
root      3709     1  0 15:48 tty1     00:00:00   /sbin/getty 38400 tty1
root      3710     1  0 15:48 tty2     00:00:00   /sbin/getty 38400 tty2
root      3711     1  0 15:48 tty3     00:00:00   /sbin/getty 38400 tty3
root      3913     1  0 15:48 ?        00:00:00   /usr/sbin/acpid -c /etc/acpi/events -s /var/run/acpid.socket
root      4013     1  0 15:48 ?        00:00:00   /sbin/syslogd
root      4045     1  0 15:48 ?        00:00:00   /bin/dd bs 1 if /proc/kmsg of /var/run/klogd/kmsg
klog      4047     1  0 15:48 ?        00:00:00   /sbin/klogd -P /var/run/klogd/kmsg
root      4164     1  0 15:48 ?        00:00:00   /usr/sbin/gdm
root      4165  4164  0 15:48 ?        00:00:00     /usr/sbin/gdm
root      4190  4165  9 15:48 tty7     00:00:23       /usr/X11R6/bin/X :0 -br -audit 0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7
jvu       4630  4165  0 15:48 ?        00:00:00       x-session-manager
jvu       4665  4630  0 15:48 ?        00:00:00         /usr/bin/ssh-agent /usr/bin/dbus-launch --exit-with-session x-session-manager
cupsys    4208     1  0 15:48 ?        00:00:00   /usr/sbin/cupsd
103       4253     1  0 15:48 ?        00:00:00   /usr/bin/dbus-daemon --system
106       4274     1  2 15:48 ?        00:00:05   /usr/sbin/hald
root      4275  4274  0 15:48 ?        00:00:00     hald-runner
106       4281  4275  0 15:48 ?        00:00:00       /usr/lib/hal/hald-addon-acpi
106       4289  4275  0 15:48 ?        00:00:00       /usr/lib/hal/hald-addon-keyboard
106       4298  4275  0 15:48 ?        00:00:00       /usr/lib/hal/hald-addon-storage
root      4342     1  0 15:48 ?        00:00:00   /usr/sbin/dhcdbd --system
root      4365     1  0 15:48 ?        00:00:00   /usr/sbin/NetworkManager --pid-file /var/run/NetworkManager/NetworkManager.pid
root      4385     1  0 15:48 ?        00:00:00   /usr/sbin/NetworkManagerDispatcher --pid-file /var/run/NetworkManager/NetworkManagerDispatcher.pid
root      4405     1  0 15:48 ?        00:00:00   perl /usr/share/system-tools-backends-2.0/scripts/SystemToolsBackends.pl
daemon    4501     1  0 15:48 ?        00:00:00   /usr/sbin/atd
root      4520     1  0 15:48 ?        00:00:00   /usr/sbin/cron
jvu       4668     1  0 15:48 ?        00:00:00   /usr/bin/dbus-launch --exit-with-session x-session-manager
jvu       4669     1  0 15:48 ?        00:00:00   /usr/bin/dbus-daemon --fork --print-pid 8 --print-address 6 --session
jvu       4671     1  0 15:48 ?        00:00:00   /usr/lib/libgconf2-4/gconfd-2 5
jvu       4674     1  0 15:48 ?        00:00:00   /usr/bin/gnome-keyring-daemon
jvu       4677     1  0 15:48 ?        00:00:00   /usr/lib/control-center/gnome-settings-daemon
jvu       4688     1  0 15:48 ?        00:00:00   /bin/sh -c /usr/bin/esd -terminate -nobeeps -as 1 -spawnfd 19
jvu       4689  4688  0 15:48 ?        00:00:00     /usr/bin/esd -terminate -nobeeps -as 1 -spawnfd 19
jvu       4696     1  0 15:48 ?        00:00:02   /usr/bin/metacity --sm-client-id=default0
jvu       4701     1  1 15:48 ?        00:00:03   gnome-panel --sm-client-id default1
jvu       4703     1  4 15:48 ?        00:00:08   nautilus --no-default-window --sm-client-id default2
jvu       4707     1  0 15:48 ?        00:00:00   /usr/lib/bonobo-activation/bonobo-activation-server --ac-activate --ior-output-fd=16
jvu       4711     1  0 15:48 ?        00:00:00   /usr/lib/gnome-vfs-2.0/gnome-vfs-daemon
jvu       4715     1  0 15:48 ?        00:00:00   gnome-volume-manager --sm-client-id default4
jvu       4717     1  0 15:48 ?        00:00:00   /usr/lib/evolution/2.8/evolution-alarm-notify
jvu       4726     1  0 15:48 ?        00:00:00   nm-applet --sm-disable
jvu       4732     1  0 15:48 ?        00:00:00   gnome-cups-icon --sm-client-id default3
jvu       4738     1  0 15:48 ?        00:00:00   gnome-power-manager
jvu       4746     1  0 15:48 ?        00:00:00   /usr/lib/gnome-applets/trashapplet --oaf-activate-iid=OAFIID:GNOME_Panel_TrashApplet_Factory --oaf-ior-fd=19
jvu       4761     1  0 15:48 ?        00:00:00   /usr/lib/nautilus-cd-burner/mapping-daemon
jvu       4774     1  0 15:48 ?        00:00:00   /usr/lib/gnome-applets/mixer_applet2 --oaf-activate-iid=OAFIID:GNOME_MixerApplet_Factory --oaf-ior-fd=23
jvu       4786     1  1 15:49 ?        00:00:02   mono /usr/lib/tomboy/Tomboy.exe --panel-applet --oaf-activate-iid=OAFIID:TomboyApplet_Factory --oaf-ior-fd=25
jvu       4802     1 23 15:49 ?        00:00:43   /usr/lib/firefox/firefox-bin
jvu       4803     1  0 15:49 ?        00:00:00   gnome-screensaver
jvu       4862     1  1 15:50 ?        00:00:01   gnome-terminal
jvu       4867  4862  0 15:50 ?        00:00:00     gnome-pty-helper
jvu       4868  4862  0 15:50 pts/0    00:00:00     bash
root      4930  4868  0 15:52 pts/0    00:00:00       ps -efH
And here is the output of lsof -i -n -P when a connection was open:

Code: Select all

COMMAND    PID   USER   FD   TYPE DEVICE SIZE NODE NAME
gdm       4164   root    3u  IPv4   9758       UDP *:177 
cupsd     4208 cupsys    2u  IPv4   9906       TCP 127.0.0.1:631 (LISTEN)
firefox-b 4802    jvu   58u  IPv4  12643       TCP 192.168.16.2:55007->72.14.221.91:80 (ESTABLISHED)
Thanks for your help.

Regards,
-- Dr.U
scorp123
Level 8
Level 8
Posts: 2272
Joined: Sat Dec 02, 2006 4:19 pm
Location: Switzerland

Post by scorp123 »

Are you on dial-up? I think it's the update manager (though I didn't see it in the listed tasks) or the Network manager, auto-establishing connections upon system start. What interfaces are listed in the Network manager? And what interfaces are listed in the System ==> Administration ==> Networking menu?
User avatar
Dr.U
Level 2
Level 2
Posts: 64
Joined: Wed Jan 03, 2007 10:24 am
Location: Ettlingen, Germany

Post by Dr.U »

scorp123 wrote:Are you on dial-up? I think it's the update manager (though I didn't see it in the listed tasks) or the Network manager, auto-establishing connections upon system start. What interfaces are listed in the Network manager? And what interfaces are listed in the System ==> Administration ==> Networking menu?
In the "Network Settings" app, the "Connections" tab has only two entries: a modem connection entry (that has a minus-sign in front of it) and a wired connection entry that is for my only interface: eth0

In the "Devices - Network Tools" app, the "Devices" tab only has eth0 and the loopback interfaces listed.

Regards,
-- Dr.U
User avatar
Dr.U
Level 2
Level 2
Posts: 64
Joined: Wed Jan 03, 2007 10:24 am
Location: Ettlingen, Germany

Post by Dr.U »

scorp123 wrote:Are you on dial-up? I think it's the update manager (though I didn't see it in the listed tasks) or the Network manager, auto-establishing connections upon system start. What interfaces are listed in the Network manager? And what interfaces are listed in the System ==> Administration ==> Networking menu?
Sorry, forgot to mention that I use ISDN dialup (internet via call-by-call). I have not been seeing this problem (connections starting with the startup of each Gnome app) with Edubuntu 6.10 (the only other Linux distro with Gnome that I use).

Regards,
-- Dr.U
scorp123
Level 8
Level 8
Posts: 2272
Joined: Sat Dec 02, 2006 4:19 pm
Location: Switzerland

Post by scorp123 »

Dr.U wrote:Sorry, forgot to mention that I use ISDN dialup
I think there is some "dial on demand" thing active in your case. Can you check those modem settings please if it somewhere says something about automatically establishing connections?
User avatar
Dr.U
Level 2
Level 2
Posts: 64
Joined: Wed Jan 03, 2007 10:24 am
Location: Ettlingen, Germany

Post by Dr.U »

scorp123 wrote:
Dr.U wrote:Sorry, forgot to mention that I use ISDN dialup
I think there is some "dial on demand" thing active in your case. Can you check those modem settings please if it somewhere says something about automatically establishing connections?
The modem is not active (I don't even have a modem). I use an thernet card that goes to an ISDN capable router that then connects (dials out) through my ISDN box that the telephone company installed. The wired connection entry does not have anything about dial on demand in any of its configuration settings.

But who or what is dialing out? Is this some sort of Gnome feature that can be turned off?

Regards,
-- Dr.U
scorp123
Level 8
Level 8
Posts: 2272
Joined: Sat Dec 02, 2006 4:19 pm
Location: Switzerland

Post by scorp123 »

Dr.U wrote:But who or what is dialing out? Is this some sort of Gnome feature that can be turned off?
System ==> Preferences ==> Sessions ... A new window should pop up. Check "Startup Programs". In my GNOME I have entries such as update-notifier ... that would be a typical candidate for dialling out, e.g. when checking for new OS updates. You could also check "Current Session" ... There again I have an entry for the update-notifier.
User avatar
Dr.U
Level 2
Level 2
Posts: 64
Joined: Wed Jan 03, 2007 10:24 am
Location: Ettlingen, Germany

Exasperation grows!

Post by Dr.U »

scorp123 wrote:
Dr.U wrote:But who or what is dialing out? Is this some sort of Gnome feature that can be turned off?
System ==> Preferences ==> Sessions ... A new window should pop up. Check "Startup Programs". In my GNOME I have entries such as update-notifier ... that would be a typical candidate for dialling out, e.g. when checking for new OS updates. You could also check "Current Session" ... There again I have an entry for the update-notifier.
Update-notifier was the first thing that I suspected and so I removed it from my current session and it is deactivated in startup programs (and it also does not appear in the ps -efH outputs). I did this right after installing Linux Mint. What else is there? In startup programs there is "evolution-alarm-notify" that I can disable (but does that dial out??). There also appear the following that I could disable: "nm-applet --sm-disable", "gnome-power-manager", "gnome-volume-manager --sm-disable".

That's it! :shock: This is really driving me crazy. Even if it isn't a security risk (and I sure hope it isn't!) each dial out costs me money!! And if the router is turned off, Linux Mint is essentially useless because all Gnome applications take so long to start (>25 seconds). :cry:

Regards,
-- Dr.U
User avatar
clem
Level 12
Level 12
Posts: 4303
Joined: Wed Nov 15, 2006 8:34 am
Contact:

Post by clem »

The network manager initiates a connection at startup. It's its purpose. You can remove it safely from synaptics, then reboot, and then setup your ethernet card through System->Administration->Networking.
User avatar
Dr.U
Level 2
Level 2
Posts: 64
Joined: Wed Jan 03, 2007 10:24 am
Location: Ettlingen, Germany

Problem remains

Post by Dr.U »

clem wrote:The network manager initiates a connection at startup. It's its purpose. You can remove it safely from synaptics, then reboot, and then setup your ethernet card through System->Administration->Networking.
Thanks for the tip -- but it didn't work. :( I completely removed NetworkManager and rebooted (it no longer appears in "ps -efH" or sessions or anywhere -- it's history, man). But now upon booting, same problem as always, and when any Gnome application is started: same problem as always -- an internet connection is opened and data is transferred to/from my computer!

Any more ideas before I stop using Linux Mint? I'm just paranoid about what's going on -- and anyway, it seems too much like Microsoft and Windoof :evil:

Please help! Does anyone else have this problem?

Regards,
-- Dr.U
scorp123
Level 8
Level 8
Posts: 2272
Joined: Sat Dec 02, 2006 4:19 pm
Location: Switzerland

Re: Problem remains

Post by scorp123 »

Dr.U wrote:Any more ideas before I stop using Linux Mint?
Please give me the output of these commands:

Code: Select all

sudo cat /etc/hosts
sudo cat /etc/resolv.conf
sudo cat /etc/network/interfaces
User avatar
Dr.U
Level 2
Level 2
Posts: 64
Joined: Wed Jan 03, 2007 10:24 am
Location: Ettlingen, Germany

Re: Problem remains

Post by Dr.U »

scorp123 wrote:
Dr.U wrote:Any more ideas before I stop using Linux Mint?
Please give me the output of these commands:

Code: Select all

sudo cat /etc/hosts
sudo cat /etc/resolv.conf
sudo cat /etc/network/interfaces
Here are the results:

### Contents of /etc/hosts ###

127.0.0.1 localhost
127.0.1.1 woody.schwarzwald

# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

### Contents of /etc/resolv.conf ###

domain schwarzwald
nameserver 192.168.16.1
nameserver 130.244.127.161
nameserver 130.244.127.169

### Contents of /etc/network/interfaces ###

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 192.168.16.2
netmask 255.255.255.0
gateway 192.168.16.1

auto eth1
iface eth1 inet dhcp

auto eth2
iface eth2 inet dhcp

auto ath0
iface ath0 inet dhcp

auto wlan0
iface wlan0 inet dhcp

Again, thank you for your time and attention to this matter.

Regards,
-- Dr.U
nick
Level 5
Level 5
Posts: 684
Joined: Sat Dec 02, 2006 8:04 am

ATTENTION: Virus, spy-ware, or harmless?

Post by nick »

Large thread on this on problem on Ubuntu
Forums:
Ubuntu slow when not connected to internet:
http://www.ubuntuforums.org/showthread. ... 7&t=230534

Also, have firefox looks for updates to search engines, and extensions
Firefox/Edit Preferences/Advanced/Updates

Also have you tried disabling IPV6? also installing the network moniter to see which applications are connecting to internet.
Regards- Nick
User avatar
clem
Level 12
Level 12
Posts: 4303
Joined: Wed Nov 15, 2006 8:34 am
Contact:

Post by clem »

ipv6 is OFF by default in Bea.

Clem.
User avatar
Dr.U
Level 2
Level 2
Posts: 64
Joined: Wed Jan 03, 2007 10:24 am
Location: Ettlingen, Germany

Re: ATTENTION: Virus, spy-ware, or harmless?

Post by Dr.U »

nick wrote:Large thread on this on problem on Ubuntu
Forums:
Ubuntu slow when not connected to internet:
http://www.ubuntuforums.org/showthread. ... 7&t=230534

Also, have firefox looks for updates to search engines, and extensions
Firefox/Edit Preferences/Advanced/Updates

Also have you tried disabling IPV6? also installing the network moniter to see which applications are connecting to internet.
Regards- Nick
Thank you for the time and effort. However, while this is all very interesting, it is not the problem. Yes, things are slow when the router is turned off, but what is this crap with diverse Gnome apps opening internet connections when they are started??? This has nothing to do with IPv6 (since it is turned off in Bea anyway -- but just to be sure, I did create a bad_list file as suggested in the thread you referenced). Why does (for example) starting gnome-terminal take 30 SECONDS when the router is off, but only 6 seconds (also somewhat slow, IMHO, but I could live with that) when the router is on, plus opening an internet connection to God only knows where?

All automatic update checks in Firefox get turned off as soon as I install any distro. I do not use Thunderbird or any other mail client (only use web-based mail, like yahoo, etc.).

I would install a network monitor if you would give me the package name. I am not a linux guru, just someone who hates M$ and generally likes LinuxMint... but not when unknown data is being transmitted to and from my computer just because I open gedit or gnome-terminal. This sounds like something Bill Gates would dream up and have implemented in XP.

Regards,
-- Dr.U
scorp123
Level 8
Level 8
Posts: 2272
Joined: Sat Dec 02, 2006 4:19 pm
Location: Switzerland

Re: Problem remains

Post by scorp123 »

Dr.U wrote:### Contents of /etc/hosts ###

127.0.0.1 localhost
127.0.1.1 woody.schwarzwald
Change this to:

Code: Select all

127.0.0.1 localhost localhost.localdomain yourmachineshostname
The line 127.0.1.1 can be commented out.
Dr.U wrote:# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
I suppose you're not using IPv6? OK, comment all those lines out.
Dr.U wrote:### Contents of /etc/resolv.conf ###
domain schwarzwald
Shouldn't that be schwarzwald.de or something like that? Or maybe the DNS domain of your provider?
Dr.U wrote:### Contents of /etc/network/interfaces ###

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 192.168.16.2
netmask 255.255.255.0
gateway 192.168.16.1

auto eth1
iface eth1 inet dhcp

auto eth2
iface eth2 inet dhcp

auto ath0
iface ath0 inet dhcp

auto wlan0
iface wlan0 inet dhcp
Are you sure the number of Ethernet interfaces shown here is right? You have three of them! One set to static and the other two to DHCP? What happens if you comment out those apparently unneeded lines?
User avatar
npap
Level 6
Level 6
Posts: 1264
Joined: Wed Nov 22, 2006 3:52 pm
Location: The Twilight Zone
Contact:

Re: ATTENTION: Virus, spy-ware, or harmless?

Post by npap »

Dr.U wrote:Hi, everyone!

My first post (Internet connection upon startup) seems to have stirred little interest or perhaps no one has an answer. But something very suspicious is occurring in my Linux Mint 2.1 installation, and I DON'T LIKE IT!! Here is what is occurring:

Beyond what was stated in my first post, I now know that starting almost ANY Gnome application initiates the opening of an internet connection (to where?) and the transmission of data of some sort or other :!: This happens, for example, when starting Nautilus, gedit, Gnome Control Center, the menu layout editor (alacarte), and others.

I have downloaded the simple editor mousepad, and see there: no internet connection is opened when mousepad starts!



When I turn off my router, starting any of the Gnome applications mentioned (and those not mentioned that open internet connections) takes about 24 seconds and longer before their GUI appears on the screen -- apparently the opening of an internet connection is being attempted, and this eventually times-out, whereupon the application GUI finally appears.

I view this as a grave security threat and want to know just what the hell is going on here, how can I prevent it from occurring and who else among you is having this problem :?:

Thanks in advance,
-- Dr.U
Hello Dr.U,
I too have noticed my eth0 network connection blinking madly at statrup, as if I'm downloading something.
It got me worried too. So I installed the Firestarter firewall (it is configurable). And in order to see what's going out or coming in, I installed a nice network monitor package called KnetDockApp.

They both can be found in Synaptic.
Greetings,
npap
User avatar
Dr.U
Level 2
Level 2
Posts: 64
Joined: Wed Jan 03, 2007 10:24 am
Location: Ettlingen, Germany

Re: Problem remains

Post by Dr.U »

scorp123 wrote:
Dr.U wrote:### Contents of /etc/hosts ###

127.0.0.1 localhost
127.0.1.1 woody.schwarzwald
Change this to:

Code: Select all

127.0.0.1 localhost localhost.localdomain yourmachineshostname
The line 127.0.1.1 can be commented out.
Dr.U wrote:# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
I suppose you're not using IPv6? OK, comment all those lines out.
Dr.U wrote:### Contents of /etc/resolv.conf ###
domain schwarzwald
Shouldn't that be schwarzwald.de or something like that? Or maybe the DNS domain of your provider?
Dr.U wrote:### Contents of /etc/network/interfaces ###

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 192.168.16.2
netmask 255.255.255.0
gateway 192.168.16.1

auto eth1
iface eth1 inet dhcp

auto eth2
iface eth2 inet dhcp

auto ath0
iface ath0 inet dhcp

auto wlan0
iface wlan0 inet dhcp
Are you sure the number of Ethernet interfaces shown here is right? You have three of them! One set to static and the other two to DHCP? What happens if you comment out those apparently unneeded lines?
Thank you for your attention to this problem(s)! I have made the changes you suggested to hosts and, since I deactivated IPv6 it probably isn't necessary to comment out the remaining IPv6-related lines, but I'll do it anyway just to be sure!

As for the the resolv.conf contents, I am not using DHCP but a local network (with a static IP) called schwarzwald because that is the name of the workgroup on my wife's M$ Windows machine that is on our LAN -- although I never use this LAN to communicate with that box nor does she use her machine to talk with mine. Still I enter it always just in case we decide it is necessary for the two machines to communicate with each other in the future. I do not have a steady provider. I use various call-up providers (internet call-by-call is what it is called here) depending on the time of day and their per-minute charges.

As for the other ethernet interfaces: they are entered by default in Ubuntu and also other distro network configurations. They are not used (note that they do not have any addresses associated with them, and I only have one ethernet card in my machine; also the "Devices - Network Tools" app only shows one wired device: eth0). But again, just to be sure: I will remove them too.

Regards,
-- Dr.U
Locked

Return to “Other topics”