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16Feb

Mass remote changing of DNS-servers in network interface (NIC) settings in Windows

Written by Super User. Posted in IT

During upgrade of domain controllers or theirs addition\removal in Active Directory domain, there is always a need to change DNS-servers in network interfaces settings in Windows. On those computers or servers where you set network settings with DHCP - there is no problems. But on those where you configure settings manually, you will have to change them manually also. It is long and inconvinient.

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02Feb

How to enable root SSH login in Debian Jessie

Written by Super User. Posted in IT

Just after clean Debian Jessie Linux installation, you will install SSH Daemon and then you will encounter an issue when you are not able to login via SSH with root account.

$ ssh root@10.1.1.1
root@10.1.1.1's password: 
Permission denied, please try again.
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28Jan

Error "Add-PSSnapin : The Windows PowerShell snap-in 'VeeamPSSnapIn' is not installed" while starting Veeam Powershell Snapin

Written by Super User. Posted in IT

Sometimes after correct installation of Veeam Powershell Snapin, attempt to load snap-in into Powershell console ends with error: Add-PSSnapin : The Windows PowerShell snap-in 'VeeamPSSnapIn' is not installed.

This problem occures because for some reason Snap-in is not got registered in Powershell. On Veeam official forums they offer many solutions like reinstalling Veeam or reboots-reinstalls of the Powershell module. In my case the following solution was found:

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22Jan

Scripts for fast address book updating in Lync 2010/2013

Written by Super User. Posted in IT

As you know, Lync have its own address book (AB) that downloaded by clients. By default, the download and update process of address boook in Lync 2010/2013 triggered in first 60 minutes (random time) after program start. In our company this situation was considered as wrong, thus I had to find solution how to ensure guaranteed updating of Lync address book right after the client starts. Also, there are other issues with delta-updating of address book, like a big delays (5-10 days) after changes in Active Directory are repliacted to Lync AB. 

The consequences of such behavior:

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20Jan

How-to find duplicates in SQL table on certain fields

Written by Super User. Posted in IT

Here is SELECT statement to find duplicates in SQL table on certain fields:

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  • The number of active calls\channels in Asterisk - output to file
  • How to restore deleted Postfix log files in Ubuntu
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