USR8200 FTP disk problem

Posted on 2012/01/29 by maoeh

Adding an USB storage device to my USR8200 Router ended up with two errors.

  1. mount error
  2. disk full

Problem 1 mount error

The system log showed the following error even after formating the device using USR8200.

daemon.warn Failed to mount device
kern.warn EXT2-fs warning (device sd(8,1)): ext2_read_super: mounting ext3
filesystem as ext2

After trying to preformat the disk or memory stick using XP, Windows 2008 R2 or cleaning the disk with diskpart I finaly got the idea to preformat an USB stick using my QNAP NAS . And it worked.

So here what you have to do:

  1. Create a partition of the size you need using your PC
  2. attach the disk to your QNAP NAS if you have one.
  3. reformat the partition using ext3
  4. detach your disk and connect it to USR8200 (it shows up as linux)
  5. Reformat the disk using ext2 on your USR8200

 

Problem 2 Disk full

The system log showed the following error while I tried to upload a few test files.

daemon.info rg_system_full:

After looking closer at my FTP command line I recogniced the test folder I created was placed at the system root not within the new added disk subfolder. So i saved all files into the USR8200 it self and there is not a lot of space left.

So the problem is that like other “sealed” linux devices like some QNAP systems, USR8200 places your start position after a login by FTP straight at the root the device. This means, it i not usable for access by other people the your self.

 

 

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SCOM Domain Controller greyed out

Posted on 2012/01/19 by maoeh

Possible problems are:

1. HSLockdown has SYSTEM in denied list.
- run : HSlockdown <ManagementGroupName> /R “NT AUTHORITY\SYSTEM”

2. Operations Manager Event log shows Error
 Source: Health Service Script
 Event ID: 10
 Message: AD MP DC Local Discovery : Active Directory Helper Objects Installation unsuccessful. MSI was not found at the specified location

- Uninstall Active Directory Management Pack Helper Object
- copy OOMADs.msi nad MOMAspNet.MSI from SCOM Source to “C:\Program Files\System Center Operations Manager 2007\HelperObjects”
- Run OOMADs.msi
- Restart HealthService

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Certificate default 2 years valid

Posted on 2011/04/25 by maoeh

Microsoft CA is set by defaukt to max 2 years Certificate validity . So you can’t create a template with  a certificate valid more then 2 years like i liked for 10 years .  The extend this for your own CA , edit the following registry key and restart the ca servcie.

KEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\CertSvc\Configuration\<CA Name>\ValidityPeriodUnits

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Pop Collector and Exchange 2010 Setup

Posted on 2011/04/23 by maoeh

Situation

  • Exchange Server 2010 hosting one namespace , 50beans.com
  • An other namespace with mailboxes hosted by an ISP providing POP3 access
  • POP Collector to get the mails from single mailboxes and forwarding them to corresponding internal user

Problem

POP Collector is sending the mails to a SMTP Receive Collector using the original sender name as sender. So he is generating “SPAM”, sending mail with different sender name. So Exchange is blocking his mails and POP Collector is ending up with an error
I did not like to enable the “Anonymous Users” for the internal  Receive Collector to avoid SMTP Relaying. All user have to be authenticated to send mail.

Solution

  1. I created a mailuser for POP Collector so he is not anonymous and is able to use the default Receive Collector.
  2. I had to change the parameters for this user on the Receive Collector so he is acting like anonymous.
    The following link gives more details: http://technet.microsoft.com/en-us/library/bb232021(EXCHG.80).aspx

Here is the Exchange Powerhell code I used.

Get-ReceiveConnector "Receive Connector Name" | Add-ADPermission -User "Domain\POP Collector user" -ExtendedRights "Ms-Exch-SMTP-Accept-Any-Recipient"
Get-ReceiveConnector "Receive Connector Name" | Add-ADPermission -User "Domain\POP Collector user" -ExtendedRights "Ms-Exch-Accept-Headers-Routing"
Get-ReceiveConnector "Receive Connector Name" | Add-ADPermission -User "Domain\POP Collector user" -ExtendedRights "Ms-Exch-SMTP-Accept-Any-Sender"
Get-ReceiveConnector "Receive Connector Name" | Add-ADPermission -User "Domain\POP Collector user" -ExtendedRights "Ms-Exch-SMTP-Accept-Authoritative-Domain-Sender"
Get-ReceiveConnector "Receive Connector Name" | Add-ADPermission -User "Domain\POP Collector user" -ExtendedRights "Ms-Exch-SMTP-Submit"

By setting this permissions I could use the central SMTP setting in POP Collector for all POP3 users . All parameters are standard, SMTP Server , Port , no HELO domain, user and password.

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CKEditor changes Vbscript code

Posted on 2011/04/21 by maoeh

Problem:

After installing CKEditor Pluging, all my vbscript code displayed by WP-CodeBox  in my Posts showed up with converted & and > or <. One time editing was enough to change the code.

Information:

WP-CodeBox is working with a <pre> and </pre> tag encasing the script to display

Solution:

edit CKEditor – configuration file ckeditor.config.js and add the following line

config.protectedSource.push( /<pre[\s\S]*?pre>/g ); // for WP-CodeBox plugin

This way CKEditor ignores all text encased by WP-CodeBox  tags.

Lines for other application code

config.protectedSource.push( /<\?[\s\S]*?\?>/g ); // PHP Code

config.protectedSource.push( /(]+>[\s|\S]*?<\/asp:[^\>]+>)|(]+\/>)/gi ); // ASP.Net Code

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Barcode EAN13 calculation with Excel

Posted on 2011/04/21 by maoeh

Download the excel-sheet using the link below

EAN13-Checknumber

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Exams 70-648 & 70-649

Posted on 2011/04/21 by maoeh

Book at Amazon

  • Transition from IPv4 to IPv6 addressing and services
  • Enable remote and wireless access, authentication, and Network Access Protection (NAP)
  • Use server roles to encrypt data and protect intellectual property
  • Manage disaster recovery, software updates, and network traffic
  • Identify and troubleshoot performance issues on local and remote computers
  • Configure and support Terminal Services
  • Configure a Web services infrastructure using IIS 7.0
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IPv4 special ranges

Posted on 2011/04/21 by maoeh

Private IP

  • 10.0.0.0/8
  • 172.16.0.0./12
  • 192.168.0.0./16

APIPA

  • 169.254.0.0/16

Multicasting

  • 224.0.0.0/4

Local Host

  • 127.0.0.1
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IPv6 Construct

Posted on 2011/04/21 by maoeh 
Build from 8x four-digit HEX number
1111:2222:3333:4444:5555:6666:7777:8888

2^128 Numbers 54'525'952 Numbers / m2 earth surface. As they are split in ranges for different purpose the real number is much less.

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IPv6 Unicast Addresses

Posted on 2011/04/21 by maoeh

Global

001 T TTTTT TTTTT TTTTT : RRRR RRRR NNNN NNNN : NNNN -NNNN : SSSS - SSSS : IIII - : : : - IIII

001 = FP
T = TLA ID
R = Reserve
N = NLA ID
S = SLA ID
I = Interface ID

Link-Local (FE80:…)

Is about what APIPA is in IPv4

1111 1110 1000 0000 : 0 : 0 : 0 :  : IIII - : : : - IIII

FE80:: Interface ID

Site-Local (FE60:…)

Is equal to IPv4 Privat ranges

1111 1110 0110 0000: 0 : 0: SSSS SSSS SSSS SSSS : 0 : IIII - : : - IIII

FE60:0:0:Site:0:Interface ID

Special

0:0:0:0:0:0:0:0:0 = :: = 0:0:0:0
0:0:0:0:0:0:0:0:1 = ::1 = 127.0.0.1 = loopback interface

0000 001 …… NSAP Address map 0000 010 …… IPX Address map

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