Daniel Rikowski's questions

I have to write an application which processes and forwards mails which are delivered to a default user, but the original sender must be preserved.

I already know that the Send as permission is required to send mails as any other Exchange user according to the Microsoft KB and also this SF question

But does that also work with users/senders which are not Exchange users?

In other words, this works:

[email protected]    --->   [email protected]  --->   [email protected]

Jane sends a mail to the default user. My application processes the inbox and composes a new message based on the original message and sends it to John with Jane as the sender.

But how about this:

[email protected]   --->   [email protected]   --->   [email protected]

In this case an unknown external sender sends the original e-mail. Can the forwarding application still set the sender of the new message to the original unknown sender?

I fear that this is not allowed because that would be a spammer's tactic (although here it is incoming mail, not outgoing)

(Unfortunately I don't have access to an Exchange server in the foreseeable future, so I can't just test this.)

I've added a new user to my MySQL 5.1 server on a fresh installation of Fedora 13 and set its password. (Using SET PASSWORD FOR USER myuser = PASSWORD('...')), but MySQL only accepts the user when I'm using an empty password to log on.

In other words: When I enter the correct password, I get an access denied error. When I use an empty string, it get in.

Things I tried:

• Changing the password and changing it back.
• Recreating the user.
• I verified that changing the password actually modifies the password hash in the user table.
• It makes no difference if I connect from the command line (mysql -u myuser -p) or from phpMySQL.
• I experimented with different hostnames (myuser, myuser@localhost, myuser@'%')

Is there any configuration option which might trigger this behaviour?

I have a web server and I'm uploading files using an FTP client. Because of that the owner and the group of the file are taken from the user used during the upload.

Now I have to make this file writable by the web server (apache/apache).

One way would be to just change the owner and the group of the uploaded file to apache/apache, but that way I cannot modify the file using the FTP account. Another way would be to give the file 777 permissions.

Both approaches seem not very professional and a little bit risky. Are there any other options? In Windows I can just add another user to the file. Can something similar done with Linux?

I have a small home server using Fedora 13 as operating system.

Since the upgrade to Fedora 13 I cannot start the X11 server. (I need it to use vnc)

When I try to start the server, both the nouveau and the original NVIDIA driver claim that there's no physical monitor attached (which is true) and that the X server cannot start because the initial display modes cannot be probed.

I tried to manually add the display modes to xorg.conf but they seem to be ignored.

Some forums suggest to simply use the VESA driver in this situation, but since I can't get it run either (different, more obscure message) I want to get it working with the nouveau driver as a matter of principle.

Temporarily attaching a monitor would mean a lot of work for me (> 1 hour and currently it's almost 35°C/95°F in my home) I want to try that only if that definitely fixes the problem and stays that way if I remove the monitor again)

How can I make the driver work without having a physical monitor attached?

Thank you for your time and your help!

We have a web server with many virtual hosts following this scheme:

www.example.com
sub1.example.com
sub2.example.com
sub3.example.com
sub?.example.com

Now some of our more naive customers often try www.sub3.example.com resulting in a redirect to www.example.com.

Is there a configuration setting to automatically redirect all requests targeted at www.sub?.example.com to sub?.example.com?

Thanks in advance!

I have a Dovecot installation on a Fedora 12 "server" at home and I want to move all my mailboxes onto a virtual CentOS 5 server.

How can I do this? Which files to I have to copy? Is it even enough to copy files or do I have to be prepared for some configuration and/or file format issues?

At my workplace we have a router which has two WAN connectors which allow transparently combining two ADSL connections or one ADSL and one ISDN as fallback.

What's the name of this feature?

After installing Crystal Reports 8 on a Windows Server 2008 machine, many ActiveX related keys have no owner set and thus it is impossible to register certain ActiveX controls on that machine ever again. (This is a known problem)

Is it possible to automatically assign an owner (=Administrator) to all registry keys which don't already have an owner?

If that is not possible, can I just set the owner to Administrator to all keys without running into problems?

Officially Outlook 2000 does not work with Exchange 2007.

Is there any workaround to get Outlook working with Exchange 2007 nevertheless?

There are many tutorials on how to set up a new secured server.

But what if I have to administrate a server someone else had set up some time ago and I don't know much about its configuration yet?

Is there some tool which automatically checks the "usual suspects" or some checklist I can go through to make sure no obvious security holes exist? Are there web services which check remotely for vulnerabilities?

Today we had some network problems and after some nested-interval trial and error we tracked down a small 4-port hub where someone had connected both ends of a patch cable to the same hub.

After removing that, everything went ok again.

My question: What happens from a hardware point of view?

Obviously there's nothing fried, and there were no error indicators lit on the main switch or the hub. But it seems there were packets broadcasted over the whole network.

Today I installed Visual Studio 2008 SP1 and I accidentially detected that the installer created temporary files on a USB hard drive I just plugged in.

I can imagine what happens if I had unplugged it during the installation...

Why did the installer choose my external USB hard drive over the internal hard drive which is much faster?

Is there anything I can do to prevent something like this? Can it be configured using WSUS?

I'm planning to rent a virtual server which besides some other Linux distributions only provides Fedora 8. (I know Fedora and I don't want to go with openSUSE or Debian unless I have to)

Fedora 8 is not that old, but I still have my doubts about running my Rails application there. I fear that half-way through I notice that Fedora 8 is a bad fit and I'm stuck with a 24 months agreement.

But from a strict technical point of view: Is it wise to use Fedora 8 on a server? Are current versions of packages available or do I have to choose between compiling everything myself or using outdated packages (like Firefox 2.0 or Rails 1.0)

I have an old Windows 2003 Server running Exchange 2003. A few weeks ago, I noticed that somehow some users lose privileges.

Examples:

• I allow a certain user to read the mail boxes of another user. As a result of that a third user loses that privilege.
• After a reboot almost everytime one user loses some privilege. They are mostly related to Exchange, because that's were we notice it immediately, but also local server privileges are lost. (See next item)
• Logging on as "Administrator" I cannot run the "Software" applet from the control panel. I have to use "Run As" to run it. Then I choose the "Administrator" account (no mistake!) and it works.

My question:

• What could produce such problems? Is this a single problems or is it likely that there is more than one problem producing similar symptoms?

I've used both tools since years now, mostly to determine the file types of files which lost their file names because of disk problems.

Unfortunately GetTyp is discontinued, GT2 is no longer actively developed and also lacks some features GetTyp once had:

• Many file types are not detected
• Compilers are no longer detected in GT2 (was in GetTyp)

Is there any alternative to this tool? (Open source, freeware or commercial)

I've set up a Fedora 10 server and I want to print to an attached printer from three Windows Vista and two XP workstations.

After much manual reading I got this situation:

• All workstations can print
• One workstation can print from all but one application.

The offender is IE7 (and IE8) from a Vista Business workstation. Everytime a print job is started from this application on that specific workstation I get an "access denied" error in the CUPS logs. Printing from IE from other workstations works. (WTF?!)

My current workaround is to first print to a PDF file and then print this PDF from Adobe Reader from the same workstation.

A secondary problem is that I don't have much experience with Fedora/Linux, so this might be a noob question. Sorry if that's the case.

• What could be the problem?
• "Access denied" to what? The log doesn't give any more information on which resource the access has been denied. What are the usual suspects?
• What's the best way to debug such situations?

I'm not using Samba for printing, I just could not get it working. I'm using CUPS with no authentication, i.e. everyone can print. On the workstations I've added the printers as "internet printer", providing this URL https://myserver:631/printers/myprinter

EDIT: I updated to Fedora 11 and the problem still exists...

EDIT 2: Some more information:

• I updated to Fedora 12 and the problem still exists
• Printing from Adobe Reader as an Internet Explorer plugin results in the same problem, so it seems the problem is somewhere with the process itself.