bind9 multiple RRs of singleon type

On an issue I have been working on a zone did not load on the bind9 server. When debugging I ran across the message "multiple RRs of singleon type". To find this error message I had to run named as "named -g -u bind -d 9". According to an article I found on this matter it is related to duplicate CNAMEs or SOA records on a zone.

I started out by looking into the zone file (sort zone.db) and quickly found two almost identical SOA records.

I deleted one line and after a quick reload of named everything started working.

Locked out of the administrator account

Some time ago I wrote about Liunx tools and how they can save my day as an Windows administrator. Today I had to download Trinity again. This time the quest was to reover a Windows 2000 server where the administrator password was lost and the account disabled.

The server was a HP server with an integrated Smart Array 5i. I had to load the cciss module manually to get the volume up and go. Then I ran a script called winpass to try change the passord and unlock the account.

Winpass is a script written by the Trinity folks and it seems to work fine. However, it only work with NTFS and fat partitions. And I could not write to the NTFS partitions. NTFS-3g is included, so for me these lines solved the day:

modprobe cciss
ntfs-3g /dev/cciss/c0d0p1 /mnt0
chntpw /mnt0/WINNT/system32/config/SAM

Unsuccessful iFolder installation

The other day I was given the task to install iFolder 3.5 on a server. That turned out not to be an easy task. In the end we had to revert to iFolder 3.2 running OES. This is the last commercial version available from Novell.

iFolder is a file synchronization tool, allowing you to backup your files on the fly when you are online. Originally developed by Novell, but i now a open-source product donated to the community.

iFolder server

From their homepage the install seems easy. You just need a few components. If you run SUSE Linux you can download already compiled packages for everything. Unfortunately they don't work out of the box on newer SUSE releases.

• iFolder with Simian (included in iFolder download)
• libflaim (developed by Novell)
• Mono
• Apache server with mod_mono installed

The source code for all components are available for download so compilation is possible. But configuration can be demanding.

I ran out of time when I tried to make mod_mono work with Apache.

Links

• iFolder homepage
• Mono project
• Tags: iFolder, Linux, open source

<<iFolder-install.htm>>

mod_mono and xsp have different versions

When running mod-mono-server you often get an error message like this:

mod_mono and xsp have different versions.

This happens mainly for two reasons;

1. You actually have different versions of mod_mono and xsp.
2. You try to load a webpage directly from mod-mono-server using your brower. In this case you'll need to load xsp instead of mod-mono-server.

Architecture of an .NET application

When a HTTP request enters the Apache web server, mod_mono handles the request. mod_mono talks to mod-mono-server using a socket. This talk is a binary protocol, and the error message above is something you get when you run different versions of mod_mono and xsp.

mod-mono-server hosts the .NET environment.

External links

• mod-mono-server manpage
• Tags: mono, mod_mono, mod-mono-server

<<mod_mono-version.htm>>