SofaKng's questions

I'm running tcpdump on a mirrored port and when I use a simple tcpdump command it shows the VLAN id:

tcpdump -i eth1 -n -e

22:02:53.308715 78:31:c1:c6:c8:9e (oui Unknown) > Broadcast, ethertype 802.1Q (0x8100), length 114: vlan 10, p 0, ethertype IPv4, redacted-MBP.home.redacted.net.netbios-ns > 192.168.10.255.netbios-ns: NBT UDP PACKET(137): REFRESH(8); REQUEST; BROADCAST

However, if I try to filter on the vlan 10 id then it doesn't show any packets:

tcpdump -i eth1 -n -e '(vlan 10)'

What am I doing wrong?

Is it possible to use kadmin (Linux) to add/remote SPNs from an Active Directory server?

I'm trying to add some service principles on my Active Directory server and store the keys in the local keytab (on the Linux machine).

I'm running ESXi 5.0 and have created a Debian Squeeze (6.0.5) "template" system which is just an installation of Debian slightly customized (ie. VMware Tools installed).

If I clone the system (ie. deploy it to a new virtual machine) then I need to perform several actions:

1. Change hostname
2. Regenerate SSH keys

Is there an easy method to perform the above actions? Changing the hostname is particularly a problem because according to (http://wiki.debian.org/HowTo/ChangeHostname) you must change it in several files such as the exim configuration, ssmtp, etc).

Is there an "approved" or easier method of doing this?

Are there any small/simple proxy servers for Windows, that support chaining further proxies?

Example:

Browser connects to proxy server. Proxy server connects to another proxy server. Proxy server connects yet another proxy server.

Traffic: Browser --> Proxy --> Proxy #2 --> Proxy #3 --> Website

We have a couple of Windows Server 2003 machines on our network and for some reason I can't drag-and-drop files on the desktop or anywhere else.

If I right-click and drag it shows the icon on the cursor, but then when I release it I don't get the right-click menu (ie. copy, paste, etc).

If I left-click and drag a file into a folder I see the file on the cursor but when I release it doesn't move or copy the file.

What's going on here?

I'm using pfSense 2.0 and have an IPsec VPN configured (which uses the Raccoon IPsec daemon).

I'm connecting to the VPN using my iPhone (iOS 5).

However, the iPhone doesn't allowing saving of XAuth username and passwords.

How secure is it to remove XAuth authentication (ie. blank password) and only use RSA certificate authentication?

Can somebody explain how I can import (or transfer) a pool?

Right now I'm using a dedicated file server machine. It is using onboard SATA plus an LSI 9211-8i SAS card.

I'm moving everything into a brand new ESXi "all-in-one" box using 2x LSI 9211-8i cards and won't be using any onboard SATA.

How can I transfer my pool from the old system to the new (and virtualized) one with the slightly different hardware?

I'm running Windows Server 2008 R2 x64 and I have a driver that isn't signed so the Device Manager displays the following message:

"Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)"

I know that I can disable driver signing enforcement per-boot by using F8 but I'd like something more permanent, or I'd like a way to sign this driver myself and allow Windows to accept it.

I have a very strange problem. DHCP requests (to my router, going through my PowerConnect switch) take 35 - 40 seconds.

Here is my setup:

Router (pfSense) --> PowerConnect 2824 switch --> LAN

DHCP server is disabled on the PowerConnect 2824 but is enabled on my router. However, any requests on my LAN take 30 - 40 seconds to receive a DHCP response.

I've tried a different switch (Netgear Prosafe) and it works perfectly and I receive an instant DHCP response so I know the problem is not with my router.

Can anybody please help me out?

How can I completely reset the security and ownership for a drive (ie. all subdirectories and files)?

I'm recreating a large RAID array and I'd like to "start fresh" with the absolute default security and permissions for everything.

I believe I need to run:

icacls . /reset /T /Q

EDIT: Also, what other files should I cleanup? (ie. thumbs.db, the system .ntfs folder, etc?)

Instead of connecting to another computer using Remote Desktop, can I somehow launch Windows Explorer (explorer.exe) and have it displayed locally but have it running on a remote machine?

Sure I can browse to remote machines using file sharing but if I want to move a file between shares it copies it across the network when instead it can performed instantly if I moved the file using the remote pc.

Hopefully that makes sense what I'm looking for...

I'd like to start a process when the PC starts up but before the user logs in. Then, after the user logs in they see the console/gui for already running process. If they logoff, the process will continue to run in the background until they log back in again.

Is this possible in Windows Server 2008 R2?

It seems perfect for daemon/server applications.