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Posted by lters on Fri 28 Jan 2011 at 16:16
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?

 

Posted by lters on Wed 19 Jan 2011 at 10:52
Tags: none.
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?

 

Posted by lters on Mon 3 Jan 2011 at 17:52
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/

 

Posted by lters on Sat 6 Mar 2010 at 11:08
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.

 

Posted by lters on Mon 9 Feb 2009 at 14:04
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

 

Posted by lters on Mon 15 Dec 2008 at 14:43
Tags: , ,
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!

 

Posted by lters on Mon 20 Oct 2008 at 15:57
Tags: none.
What software have you used or found to work well to create webinars in Debian?

 

Posted by lters on Wed 16 Apr 2008 at 13:12
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.

 

Posted by lters on Tue 15 Apr 2008 at 21:10
Tags: none.
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?

 

Posted by lters on Tue 19 Feb 2008 at 17:26
Tags: ,
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?