Samba: Setup an Active Directory









Hi,

unfortunately Microsoft has deceided to discontinue its Small Buisiness Server and for small environments you not really want to buy an Windows Server and install them as an Active Directory Domain Controller. When Microsofts Cloud isn’t also an option then you can use Samba :-).
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DNS: Configure DNS to return the same IP Address for all hostnames

Hi,

its possible to catch all DNS host queries to just one IP Address. For example in an open WLAN to redirect a User to a authentication page before he can use the network.

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Windows: Only register primary IP Address in DNS

Hi,

if you want to change the IP Address (new Address is in the same subnet) a of Windows Server by a minimal downtime for the users?

In pure Active Directory domains this is not a problem because the server itself updates its A Record at the DNS server and the Active Directory replicates the entry immediately.
In large environments with a heterogeneous DNS structure the TTL of the DNS entry respectively of the DNS zone becomes very important, because the entry is cached for this time by the requesting server, so the time when the new DNS A record reaches  each DNS Server can take some time.
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Windows: Show and configure network settings using netsh

Hi,

here is a set of netsh command lines which I use very often.

Show Interface configuration

netsh interface ipv4 show config

Only IP Addresses of all LAN adapters

netsh interface ipv4 show address

Show global TCP/IP Parameters

netsh interface ipv4 show global

Disable and enable a Interface

netsh int set int name="ethernet" admin=disabled
netsh int set int name="ethernet" admin=enabled

Show all network  interfaces and its link state

netsh interface ipv4 show interfaces
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