dinsdag 21 oktober 2014
Configure External Time Source on Primary Domain Controller
http://jackstromberg.com/2013/10/configuring-external-time-source-on-your-primary-domain-controller/
Om te zien welke server de dc is:
netdom /query fsmo
Dan op de PDC onderstaande commando’s uit voeren:
w32tm.exe /config /manualpeerlist:”0.nl.pool.ntp.org 1.nl.pool.ntp.org 2.nl.pool.ntp.org 3.nl.pool.ntp.org” /syncfromflags:manual /reliable:YES /update
w32tm.exe /config /update
Restart-Service w32time
Wachtwoord reset van Cisco 800 router
De router met een console kabel verbinden met een terminal of PC.
Tijdens het opstarten van de router het break commando “CTRL-SHIFT-6-X” uitvoeren om de router in ROMMON mode te zetten.
Type commando “set” om de gegevens te bekijken van ios-conf
Deze variabele zet de waarde van het configuratie register.
Type “set ios-conf = 142” en vervolgens “boot”.
De router start nu op en je kunt zonder wachtwoord naar de “enable” modus.
Type daar “configure memory” of “copy startup-config running-config” in een kopie van de configuratie naar het geheugen weg te schrijven.
Je kunt nu de configuratie bekijken “show running-config”
Toetsenbordindeling
When talking about keyboard layouts, the terms ANSI and ISO refer to the two main classes of Western keyboard layouts. The terms ANSI and ISO literally refer to the American National Standards Institute and International Organization for Standardization respectively. ANSI and ISO are physical layouts, i.e. they describe the size and position of the keys regardless of the logical layout (US QWERTY, UK QWERTY, German QWERTZ, Colemak, Windows vs Macintosh etc). Japan has its own keyboard layout, JIS, similar to ISO, but with three additional keys. The terms "ANSI" and "ISO" are also used, perhaps erroneously, to describe keyboards with a "big-ass" enter key, i.e. an enter key that consumes the union of the space occupied by both the ISO and ANSI return keys.
ANSI
ANSI layout keyboards are used in the United States and the Netherlands amongst other countries. PC keyboards using the ANSI layout as used by the IBM Model M are typically referred to as 101-key (pre-1995), 104-key (with the Windows and context menu keys added), and 87-key (standard tenkeyless layout). The main cluster of keys is laid out thus: The pink and purple keys illustrate the keys that differ from ISO.
ISO
ISO keyboards are used by many European countries, and with one extra key compared to ANSI keyboards, are correspondingly referred to as 102-key, 105-key and 88-key for PCs. The pink and purple keys illustrate the keys that differ from ANSI. In addition to having one extra key, the ISO layout has another fundamental property: the right Alt key is replaced with the Alt Gr key, which is a typographic meta key that accesses the third symbol on a keyboard. The use of accents in European languages leads to the need to enter many more symbols than in the US, with keys having increased symbol overloading. For example, in the UK, the "4" key will produce "$" with the Shift key held, and "€" with the Alt Gr key held.
Uitleg PS Execution Policy
In de GPO WinRM had ik tijdelijk even een setting toegevoegd, welke ervoor zorgt dat alle server die deze policy krijgt de Execution policy ingesteld wordt op “Allow only signed scripts”.
Op een server die deze policy nu krijgt zie je bij “Get-ExecutionPolicy – list” dat de scope “MachinePolicy” op AllSigned staat.
De MachinePolicy wordt gezet door de GPO en gaat boven alle andere scopes.
Het is daardoor niet mogelijk zoals je hieronder ziet om de executionpolicy op het systeem zelf aan te passen.
Via de Get-Help zie je dat je de ExecutionPolicy een aantal waardes kunt instellen:
Valid values are:
-- Restricted: Does not load configuration files or run scripts. "Restricted" is the default.
-- AllSigned: Requires that all scripts and configuration files be signed by a trusted publisher, including scripts that you write on the local computer.
-- RemoteSigned: Requires that all scripts and configuration files downloaded from the Internet be signed by a trusted publisher.
-- Unrestricted: Loads all configuration files and runs all scripts. If you run an unsigned script that was downloaded from the Internet, you are prompted for permission before it runs.
-- Bypass: Nothing is blocked and there are no warnings or prompts.
-- Undefined: Removes the currently assigned execution policy from the current scope. This parameter will not remove an execution policy that is set in a Group Policy scope.
Stel NOOIT maar dan ook NOOIT de Executionpolicy in op Unrestricted (en zeker niet op Bypass), de minimale setting moet zijn RemoteSigned!
Lokale scripts worden dan gewoon uitgevoerd, echter scripts die gedownload zijn niet (of ze moeten gesigned zijn).
Windows kan via de ADS (NTFS Alternative DataStream) zien of een bestand gedownload is of niet.
Powershell and external commands done right
Dus onderstaand commando is correct in powershell:
robocopy "\`"$sourceFolder"\`" "\`"$destinationFolder"\`" /MIR
Korte uitleg van omzetten binary naar decimaal naar ASCII
they are binary code.
01001001 = 64 + 8 + 1 = 73 in decimal format.
in ASCII 73 = "I"
01010100 = 64 + 16 + 4 = 84 in decimal format.
in ASCII 84 = "T"
decimal decoding is pretty simple the last digit is 1, the next to the left is 2, and it doubles each one to the left.
128, 64, 32, 16, 8, 4, 2, 1
if it is a 1, you add the number for the place, if it is a 0 you do not.
just like the decimal system, only we use 10.
..., 10000, 1000, 100, 10, 1
8 bits (1's and 0's) are a byte, and bytes are used for characters, which is why everyone is guessing letters, but it could just as easily be the numbers that are stored there.
On this table you can find all the ascii letter listed with their decimal equivalent.
http://www.asciitable.com/
01001001 = 64 + 8 + 1 = 73 in decimal format.
in ASCII 73 = "I"
01010100 = 64 + 16 + 4 = 84 in decimal format.
in ASCII 84 = "T"
decimal decoding is pretty simple the last digit is 1, the next to the left is 2, and it doubles each one to the left.
128, 64, 32, 16, 8, 4, 2, 1
if it is a 1, you add the number for the place, if it is a 0 you do not.
just like the decimal system, only we use 10.
..., 10000, 1000, 100, 10, 1
8 bits (1's and 0's) are a byte, and bytes are used for characters, which is why everyone is guessing letters, but it could just as easily be the numbers that are stored there.
On this table you can find all the ascii letter listed with their decimal equivalent.
http://www.asciitable.com/
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