When working with routers and using linux to do routing, is there a way to stop the kernel warning "kernel: IPv6 addrconf: prefix with wrong length 112" ?

Seems the kernel thinks its never except-able to have a prefix other than /64?

On some of our boxes we are running squeeze.
And I find that sudo -s changes the current user to root.
The breaks all the current users aliases and environment.
Normally after logging into a box, and needed to do root type things, sudo -s gets me privileges but keeps everything like my pwd, aliases, environment vars etc.

Is there anyway to get the current /Lenny/ behavior back?
That was much nicer or was I doing something I should not have been doing?

I am looking for ways to take a IPv4 debian system that is acting as a FW, GW, [1] etc to the world via multiple ISPs.
And allow us to setup a full IPv6 network behind it. When traffic needs to be converted back to IPv4, and I have public IPv4 and IPv6 space, is there a need for NAT64 or something like it?

If you have a ipv6 solution going, how to get back to the rest of the world without using a some other carrier?
If I have a public ip on v4 and v6, why would I want to use a broker?

Seems like some sort of nat from ipv6 to ipv4 and some sort of fancy DNS service is needed to handle the "on the fly" conversion...

NAT64 appears to be a compilable option for lenny.

Thanks.

[1] http://code.google.com/p/mf-firewall/

Are you running a multihomed pptpd server?

Be sure you have these modules loaded:

ip_conntrack_ftp
ip_nat_ftp
ip_conntrack_pptp
ip_nat_pptp

Otherwise, you will have weird problems with vpns not coming up right.

If anyone ever figures our how to set the default dns search domain, I would really like to know about it.

Recently having had the chance to use a Macbook to manage debian boxes, I have one problem that I was not able to overcome... yet.

The included terminal.app does not send the F1 etc keys properly to the linux terminals.
I tried different terminal settings like xterm, xterm-color, vt100 and etc.
Each one brings its own problems it seems, none run perfectly like konsole or gnome-terminal.
There is an xterm application that is installed with X11, but who wants X11 running all the time.

Also, I miss the mouse single click paste and highlight to copy.

However, the macbook performs amazingly quick and well other wise.
If you are afraid of trying linux, try a Macbook.

http://www.apple.com/macbook/features.html

Trying to update my xterm settings and realized that .Xdefaults and .Xresources did not make an difference
until I ran

xrdb ~/.Xdefault 
or 
xrdb ~/.Xresources

After this xterm saw the changes.

Hope this saves someone else some grief!

What software have you used or found to work well to create webinars in Debian?

In an interest of redunancy, I like setting up 2 network cables and than using bonding to bond them together.

I add something like this to /etc/network/interfaces

auto bond0
iface bond0 inet static
        address 10.1.1.2
        netmask 255.255.255.0
        network 10.1.1.0
        gateway 10.1.1.1
        up /sbin/ifenslave bond0 eth0
        up /sbin/ifenslave bond0 eth1
        pre-up modprobe -v bonding -o bond0 mode=4 miimon=50
        post-down rmmod bond0

After creating the first DomU, I could not get it to use my bond0. It wanted to use eth0. I tried adding

('network-bridge netdev=bond0')

to /etc/xen/xend-config.sxp but it would not work.

After doing some research I found this article: http://www.performancemagic.com/Dell1950_MD3000i_Xen_Debian_iSCSI_RDAC/Networking.html which proved to be very helpful.

I added the network-bond to the scripts in /etc/xen/scripts, set it to executable with chmod. I commented out the network-bridge and used this instead.

 (network-script network-bond) 

After a reboot it quit working. After reviewing the above link again, I saw I was missing the netboot in /etc/modules. Adding this and another reboot makes it all work great.

I sent an email with this info to the debian xen package team, but did not hear back from them.

It would be nice to have this script included and a comment added to /etc/xen/xend-config.sxp.

Perhaps this is all fixed in Lenny.
Or maybe there is a better way to do this.

Hopefully this can save someone else similar problems.

With a new install of Xen and Etch, than using the xen tools to install a new copy of Etch, the time seems to stay off.

The system has minimal config changes and creating the xen client looks like this:

xen-create-image --hostname Xrrr.my.flat --ip 10.1.1.1 --dist etch

Installing ntpdate and running ntpdate -b myntpserver does not seem to fix it.
Tzconfig changes the timezone but does not fix it.
It still seems to be about 5 hours off.

Why is a xen client different than regular Etch?

Icewm is a great desktop when you want speed, performance and stability.

Although I like icewm I still use konsole and other kde applications.

With kde4 apps showing up, it is fun to try them out as well.

I notice that although they work fine, icewm shows a black spot where the application icon should be.

Are there any tips for fixing this?