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Config snippets : useful Netdom command

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Quick side note, not to forget for future.

Rename computer

Netdom renamecomputer %computername% /newname:Test-Server

Join computer to domain

Netdom join %computername% /domain:domain.com /UserD:Administrator /PasswordD:*
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Code snippets : Enable remote administration on Windows Server 2012 Core

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By default remote management on Windows Server 2012 Core can be blocked by firewall.

In order to enable this functionality, issue following command from Command Prompt window:


Netsh.exe firewall set service remoteadmin enable ALL

Once it’s done you should be able to manage server remotely.

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Tips & Tricks : CMD Batch parameters

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Handful list of parameters possible to use in CMD scripts:

%~I         - expands %I removing any surrounding quotes ("")
%~fI        - expands %I to a fully qualified path name
%~dI        - expands %I to a drive letter only
%~pI        - expands %I to a path only
%~nI        - expands %I to a file name only
%~xI        - expands %I to a file extension only
%~sI        - expanded path contains short names only
%~aI        - expands %I to file attributes of file
%~tI        - expands %I to date/time of file
%~zI        - expands %I to size of file
%~$PATH:I   - searches the directories listed in the PATH
environment variable and expands %I to the
fully qualified name of the first one found.
If the environment variable name is not
defined or the file is not found by the
search, then this modifier expands to the
empty string

%~1         - expands %1 removing any surrounding quotes (")
%~f1        - expands %1 to a fully qualified path name
%~d1        - expands %1 to a drive letter only
%~p1        - expands %1 to a path only
%~n1        - expands %1 to a file name only
%~x1        - expands %1 to a file extension only
%~s1        - expanded path contains short names only
%~a1        - expands %1 to file attributes
%~t1        - expands %1 to date/time of file
%~z1        - expands %1 to size of file
%~$PATH:1   - searches the directories listed in the PATH
environment variable and expands %1 to the fully
qualified name of the first one found.  If the
environment variable name is not defined or the
file is not found by the search, then this
modifier expands to the empty string

%~dp1       - expands %1 to a drive letter and path only
%~nx1       - expands %1 to a file name and extension only
%~dp$PATH:1 - searches the directories listed in the PATH
environment variable for %1 and expands to the
drive letter and path of the first one found.
%~ftza1     - expands %1 to a DIR like output line

Very useful for automated software installations for example.

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Config snippets : OpenSSL for Windows can’t find openssl.cfg

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Little issue with OpenSSL for Windows came out recently when I tried to create certificate request. Just after installation when tried to generate cert request got error message:

WARNING: can't open config file: /usr/local/ssl/openssl.cnf
Unable to load config info from /usr/local/ssl/openssl.cnf

Reason was that by default OpenSSL couldn’t find configuration file (even if it was located in same folder as excutable file).

So, to fix it just set environmental variable with information where openssl.cfg file is located:

set OPENSSL_CONF=c:\OpenSSL-Win32\bin\openssl.cfg

You can consider adding this to system environmental variables.

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Code snippets : List all logical disks in Windows 7 Command Prompt

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Recently I was wondering how to list all available drives in Windows 7 PE Command Prompt. That happened to me when stuck in PXE boot command prompt window trying to find out what letter is assigned to USB stick I just plugged in. It looks like it’s not quite straightforward activity 🙂

(more…)

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